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Organism
  Plantae
   Viridiplantae
     Streptophyta
     Embryophyta
      Tracheophyta
        Spermatophytina
            Magnoliopsida
                  Asteranae
                    Asterales
                            Asteraceae
                                     Abrotanella
                                     Acamptopappus
                                             Acamptopappus shockleyi
                                             Acamptopappus sphaerocephalus
                                                   [Acamptopappus microcephalus]
                                                   [Aplopappus sphaerocephalus]
                                                   [Haplopappus sphaerocephalus]
                                               Acamptopappus sphaerocephalus var. hirtellus
                                               Acamptopappus sphaerocephalus var. sphaerocephalus
                                     Acanthospermum
                                             Acanthospermum australe
                                             Acanthospermum glabratum
                                             Acanthospermum hispidum
                                             Acanthospermum microcarpum
                                     Acanthoxanthium
                                     Acarphaea
                                     Achaenipodium
                                     Achaetogeron
                                             Achaetogeron affinis
                                             Achaetogeron ascendens
                                             Achaetogeron chihuahuensis
                                             Achaetogeron corymbosus
                                             Achaetogeron fisheri
                                             Achaetogeron forreri
                                             Achaetogeron galeottii
                                             Achaetogeron garciae
                                             Achaetogeron griseus
                                             Achaetogeron guatemalensis
                                             Achaetogeron howardii
                                             Achaetogeron linearifolius
                                             Achaetogeron mimus
                                             Achaetogeron palmeri
                                             Achaetogeron pinnatifidus
                                             Achaetogeron polycephalus
                                             Achaetogeron pringlei
                                             Achaetogeron purpurascens
                                             Achaetogeron seemannii
                                             Achaetogeron sophiaefolius
                                             Achaetogeron subacaulis
                                             Achaetogeron wislizeni
                                     Achillea
                                             Achillea abrotanifolia
                                             Achillea abrotanoides
                                             Achillea acuminata
                                             Achillea aegyptiaca
                                             Achillea ageratifolia
                                               Achillea ageratifolia subsp. aizoon
                                             Achillea ageratum
                                             Achillea albicaulis
                                             Achillea aleppica
                                             Achillea alpicola
                                             Achillea alpina
                                               Achillea alpina subsp. alpina
                                               Achillea alpina subsp. japonica
                                               Achillea alpina subsp. multiflora
                                               Achillea alpina var. alpina
                                               Achillea alpina var. discoidea
                                               Achillea alpina var. flosculosa
                                             Achillea ambrosiaca
                                             Achillea angustissima
                                             Achillea apiculata
                                             Achillea arabica
                                             Achillea arenicola
                                             Achillea argentea
                                             Achillea argyrophylla
                                             Achillea asiatica
                                             Achillea aspleniifolia
                                             Achillea atrata
                                               Achillea atrata var. atrata
                                               Achillea atrata var. intermedia
                                             Achillea banatica
                                             Achillea barrelieri
                                             Achillea biebersteinii
                                             Achillea bipinnata
                                             Achillea birjuczensis
                                             Achillea biserrata
                                             Achillea borealis
                                               Achillea borealis var. arenicola
                                               Achillea borealis var. californica
                                             Achillea bucharica
                                             Achillea calcarea
                                             Achillea californica
                                             Achillea callichroa
                                             Achillea camphorata
                                             Achillea camtschatica
                                             Achillea cancrinii
                                             Achillea carpatica
                                             Achillea ceretanica
                                             Achillea chamaemelifolia
                                             Achillea chrysocoma
                                             Achillea clavennae
                                               Achillea clavennae var. clavennae
                                               Achillea clavennae var. denudata
                                               Achillea clavennae var. integrifolia
                                               Achillea clavennae var. intercedens
                                             Achillea clusiana
                                             Achillea clypeolata
                                             Achillea coarctata
                                             Achillea collina
                                               Achillea collina var. pannonica
                                             Achillea compacta
                                             Achillea conferta
                                             Achillea corabensis
                                               Achillea corabensis var. integrifolia
                                             Achillea coronopifolia
                                             Achillea cretica
                                             Achillea crithmifolia
                                             Achillea cucullata
                                             Achillea cuneatiloba
                                             Achillea cuspidata
                                             Achillea damascena
                                             Achillea decolorans
                                             Achillea decumbens
                                             Achillea depressa
                                             Achillea distans
                                               Achillea distans subsp. stricta
                                                     [Achillea stricta]
                                               Achillea distans subsp. distans
                                               Achillea distans subsp. tanacetifolia
                                             Achillea eradiata
                                             Achillea erba-rotta
                                               Achillea erba-rotta subsp. moschata
                                                     [Achillea genipi]
                                             Achillea erioclada
                                             Achillea eriophora
                                             Achillea eupatorium
                                             Achillea euxina
                                             Achillea falcata
                                             Achillea filicifolia
                                             Achillea filipendulina
                                               Achillea filipendulina var. eupatoria
                                               Achillea filipendulina var. filicifolia
                                               Achillea filipendulina var. leptocline
                                               Achillea filipendulina var. szowitziana
                                             Achillea fraasii
                                             Achillea fragrantissima
                                             Achillea fusca
                                             Achillea gigantea
                                             Achillea glaberrima
                                             Achillea glomerata
                                             Achillea goniocephala
                                             Achillea gracilis
                                             Achillea grandiflora
                                             Achillea grandifolia
                                             Achillea griseo-virens
                                             Achillea gypsicola
                                             Achillea herba-rota
                                             Achillea holosericea
                                             Achillea imbricata
                                             Achillea impatiens
                                               Achillea impatiens subsp. euimpatiens
                                               Achillea impatiens subsp. ledebourii
                                             Achillea impunctata
                                             Achillea inodora
                                             Achillea inundata
                                             Achillea japonica
                                             Achillea karatavica
                                             Achillea kermanica
                                             Achillea kitaibelliana
                                             Achillea lanata
                                               Achillea lanulosa subsp. alpicola
                                               Achillea lanulosa subsp. megacephala
                                               Achillea lanulosa var. alpicola
                                               Achillea lanulosa var. arachnoidea
                                               Achillea lanulosa var. eradiata
                                             Achillea latiloba
                                             Achillea laxiflora
                                             Achillea ledebourii
                                             Achillea leptophylla
                                             Achillea leptophylloides
                                             Achillea ligustica
                                             Achillea lingulata
                                             Achillea lycaonica
                                             Achillea macrocephala
                                             Achillea macrophylla
                                             Achillea maritima
                                             Achillea maura
                                             Achillea megacephala
                                             Achillea membranacea
                                             Achillea micranthoides
                                             Achillea microloba
                                             Achillea microphylla
                                             Achillea millefolium
                                                   [Achillea borealis subsp. arenicola]
                                                   [Achillea borealis subsp. californica]
                                                   [Achillea lanulosa subsp. alpicola]
                                                   [Achillea lanulosa var. lanulosa]
                                                   [Achillea millefolium f. rosea]
                                                   [Achillea millefolium subsp. lanulosa]
                                                   [Achillea millefolium subsp. millefolium]
                                                   [Achillea millefolium var. alpicola]
                                                   [Achillea millefolium var. arenicola]
                                                   [Achillea millefolium var. borealis]
                                                   [Achillea millefolium var. californica]
                                                   [Achillea millefolium var. gigantea]
                                                   [Achillea millefolium var. lanulosa]
                                                   [Achillea millefolium var. littoralis]
                                                   [Achillea millefolium var. maritima]
                                                   [Achillea millefolium var. millefolium]
                                                   [Achillea millefolium var. occidentalis]
                                                   [Achillea millefolium var. pacifica]
                                                   [Achillea millefolium var. puberula]
                                                   [Achillea puberula]
                                               Achillea millefolium var. arenicola
                                                     [Achillea borealis subsp. arenicola]
                                               Achillea millefolium var. occidentalis
                                                     [Achillea lanulosa]
                                                     [Achillea millefolium var. rosea]
                                               Achillea millefolium var. pacifica
                                               Achillea millefolium subsp. atrotegula
                                               Achillea millefolium subsp. borealis
                                               Achillea millefolium subsp. chitralensis
                                               Achillea millefolium subsp. collina
                                               Achillea millefolium subsp. occidentalis
                                               Achillea millefolium subsp. pallidotegula
                                               Achillea millefolium subsp. pannonica
                                               Achillea millefolium subsp. stricta
                                               Achillea millefolium subsp. sudetica
                                               Achillea millefolium var. alpicola
                                               Achillea millefolium var. asplenifolia
                                               Achillea millefolium var. borealis
                                               Achillea millefolium var. collina
                                               Achillea millefolium var. elbursensis
                                               Achillea millefolium var. fulva
                                               Achillea millefolium var. fusca
                                               Achillea millefolium var. gigantea
                                               Achillea millefolium var. gracilis
                                               Achillea millefolium var. litoralis
                                               Achillea millefolium var. macrocephala
                                               Achillea millefolium var. manshurica
                                               Achillea millefolium var. maritima
                                               Achillea millefolium var. megacephala
                                               Achillea millefolium var. nigrescens
                                               Achillea millefolium var. pallidotegula
                                               Achillea millefolium var. parviligula
                                               Achillea millefolium var. parvula
                                               Achillea millefolium var. puberula
                                               Achillea millefolium var. russeolata
                                               Achillea millefolium var. setacea
                                             Achillea mongolica
                                             Achillea monocephala
                                             Achillea monticola
                                             Achillea moschata
                                               Achillea moschata var. hybrida
                                             Achillea multiflora
                                             Achillea multiplex
                                             Achillea myriophylla
                                             Achillea nana
                                             Achillea neilreichii
                                             Achillea nigrescens
                                             Achillea nobilis
                                               Achillea nobilis subsp. neilreichii
                                             Achillea occidentalis
                                             Achillea occulta
                                             Achillea ochroleuca
                                             Achillea odorata
                                             Achillea oligocephala
                                             Achillea oxyloba
                                               Achillea oxyloba subsp. schurii
                                                     [Achillea schurii]
                                             Achillea oxyodonta
                                             Achillea pacifica
                                             Achillea pallescens
                                             Achillea palmeri
                                             Achillea pannonica
                                             Achillea pecten-veneris
                                             Achillea pindicola
                                               Achillea pindicola subsp. integrifolia
                                             Achillea pratensis
                                             Achillea ptarmica
                                               Achillea ptarmica subsp. macrocephala
                                               Achillea ptarmica subsp. ptarmica
                                               Achillea ptarmica var. acuminata
                                               Achillea ptarmica var. angustifolia
                                               Achillea ptarmica var. ptarmica
                                               Achillea ptarmica var. pubescens
                                               Achillea ptarmica var. vulgaris
                                             Achillea ptarmicifolia
                                             Achillea ptarmicoides
                                             Achillea puberula
                                             Achillea pubescens
                                             Achillea punctata
                                             Achillea pyrenaica
                                             Achillea rosea
                                             Achillea roseo-alba
                                             Achillea sachokiana
                                             Achillea salicifolia
                                             Achillea santolina
                                             Achillea santolinoides
                                             Achillea schischkinii
                                             Achillea sedelmeyerana
                                             Achillea semipectinata
                                               Achillea semipectinata var. repanda
                                             Achillea septentrionalis
                                             Achillea serbica
                                             Achillea sericea
                                             Achillea serrata
                                             Achillea setacea
                                               Achillea setacea subsp. asiatica
                                             Achillea sibirica
                                               Achillea sibirica subsp. mongolica
                                               Achillea sibirica subsp. ptarmicoides
                                               Achillea sibirica subsp. wilsoniana
                                               Achillea sibirica var. discoidea
                                               Achillea sibirica var. ptarmicoides
                                               Achillea sibirica var. subcartilaginea
                                               Achillea sibirica var. typica
                                             Achillea sinensis
                                             Achillea sintenisii
                                             Achillea sipikorensis
                                             Achillea speciosa
                                             Achillea spinulifolia
                                             Achillea subalpina
                                             Achillea subcartilaginea
                                             Achillea submillefolium
                                             Achillea subtanacetifolia
                                             Achillea sudetica
                                             Achillea sulphurea
                                             Achillea sylvatica
                                               Achillea sylvatica var. subvelutina
                                             Achillea sylvestris
                                             Achillea szowitzii
                                             Achillea talagonica
                                             Achillea tanacetifolia
                                               Achillea tanacetifolia var. cristata
                                             Achillea taurica
                                             Achillea taygetea
                                             Achillea tenuifolia
                                             Achillea teretifolia
                                             Achillea thomasiana
                                             Achillea thracica
                                             Achillea tomentosa
                                             Achillea trichophylla
                                             Achillea umbellata
                                               Achillea umbellata subsp. monocephala
                                             Achillea vermicularis
                                             Achillea wilhelmsii
                                             Achillea wilsoniana
                                     Achyrachaena
                                             Achyrachaena mollis
                                     Achyrocline
                                             Achyrocline deflexa
                                     Achyropappus
                                             Achyropappus anthemoides
                                                   [Bahia anthemoides]
                                     Acilepis
                                             Acilepis saligna
                                                   [Vernonia saligna]
                                             Acilepis setigera
                                                   [Vernonia setigera]
                                     Acmella
                                             Acmella alba
                                                   [Spilanthes alba]
                                                   [Spilanthes ocymifolia]
                                               Acmella alba var. ecuadorensis
                                             Acmella alpestris
                                             Acmella bellidioides
                                             Acmella biflora
                                             Acmella brachyglossa
                                             Acmella brasiliensis
                                             Acmella buphthalmoides
                                             Acmella calva
                                             Acmella caulirhiza
                                                   [Spilanthes mauritiana]
                                             Acmella ciliata
                                             Acmella darwinii
                                             Acmella debilis
                                             Acmella decumbens
                                               Acmella decumbens var. affinis
                                               Acmella decumbens var. decumbens
                                             Acmella filipes
                                               Acmella filipes var. filipes
                                               Acmella filipes var. parvifolia
                                                     [Spilanthes parvifolia]
                                             Acmella fimbriata
                                             Acmella flavicaulis
                                             Acmella garcini
                                             Acmella glaberrima
                                             Acmella globosa
                                             Acmella grandiflora
                                               Acmella grandiflora var. brachyglossa
                                               Acmella grandiflora var. grandiflora
                                             Acmella grisea
                                             Acmella hirta
                                             Acmella intermedia
                                             Acmella iodiscaea
                                             Acmella lanceolata
                                             Acmella leptophylla
                                             Acmella leucantha
                                             Acmella lundellii
                                             Acmella mauritanica
                                             Acmella nudicaulis
                                             Acmella nuttaliana
                                             Acmella oleracea
                                             Acmella oppositifolia
                                                   [Heliopsis buphthalmoides]
                                                   [Spilanthes americana]
                                                   [Spilanthes disciformis]
                                               Acmella oppositifolia var. oppositifolia
                                               Acmella oppositifolia var. repens
                                                     [Anthemis repens]
                                             Acmella paniculata
                                             Acmella papposa
                                               Acmella papposa var. macrophylla
                                               Acmella papposa var. papposa
                                             Acmella parvifolia
                                             Acmella pilosa
                                             Acmella poliolepidica
                                             Acmella psilocarpa
                                             Acmella pusilla
                                             Acmella radicans
                                                   [Sanvitalia longepedunculata]
                                               Acmella radicans var. debilis
                                               Acmella radicans var. radicans
                                             Acmella ramosa
                                             Acmella repens
                                                   [Spilanthes americana var. repens]
                                                   [Spilanthes disciformis var. phaneractis]
                                             Acmella serratifolia
                                             Acmella sodiroi
                                             Acmella spilanthoides
                                             Acmella tenella
                                             Acmella uliginosa
                                     Acomis
                                             Acomis acoma
                                             Acomis kakadu
                                     Acosta
                                     Acourtia
                                             Acourtia acevedoi
                                             Acourtia alamanii
                                               Acourtia alamanii var. adnata
                                               Acourtia alamanii var. alamanii
                                             Acourtia arachnolepis
                                             Acourtia aspera
                                             Acourtia belizeana
                                             Acourtia bravohollisiana
                                             Acourtia butandae
                                             Acourtia caltepecana
                                             Acourtia carpholepis
                                             Acourtia carranzae
                                             Acourtia ciprianoi
                                             Acourtia collina
                                             Acourtia cordata
                                             Acourtia coulteri
                                             Acourtia cuernavacana
                                             Acourtia dieringeri
                                             Acourtia discolor
                                             Acourtia dissiticeps
                                             Acourtia dugesii
                                               Acourtia dugesii var. veracruzana
                                                     [Acourtia veracruzana]
                                             Acourtia durangensis
                                             Acourtia elizabethiae
                                             Acourtia erioloma
                                             Acourtia formosa
                                             Acourtia fragrans
                                             Acourtia fruticosa
                                                   [Acourtia rigida]
                                                   [Perezia kuhnioides]
                                                   [Perezia rigida var. linearifolia]
                                                   [Perezia rigida]
                                             Acourtia gentryi
                                             Acourtia glandulifera
                                             Acourtia glomeriflora
                                                   [Gochnatia glomeriflora]
                                                   [Perezia capitata]
                                                   [Perezia nitens]
                                             Acourtia gracilis
                                             Acourtia grandifolia
                                                   [Perezia grandifolia]
                                             Acourtia guatemalensis
                                             Acourtia hebeclada
                                             Acourtia hidalgoana
                                             Acourtia hintoniorum
                                             Acourtia hondurana
                                             Acourtia hooveri
                                                   [Perezia hooveri]
                                             Acourtia huajuapana
                                               Acourtia huajuapana var. actinomorpha
                                             Acourtia humboldtii
                                             Acourtia intermedia
                                             Acourtia joaquinensis
                                             Acourtia lepidopoda
                                             Acourtia lobulata
                                             Acourtia longifolia
                                             Acourtia lozanii
                                             Acourtia lozanoi
                                                   [Perezia lozanii]
                                             Acourtia macrocephala
                                             Acourtia macvaughii
                                             Acourtia matudae
                                             Acourtia mexiae
                                             Acourtia mexicana
                                             Acourtia michoacana
                                             Acourtia microcephala
                                                   [Perezia microcephala]
                                             Acourtia moctezumae
                                             Acourtia molinana
                                                   [Perezia microcephala]
                                             Acourtia montana
                                             Acourtia moschata
                                             Acourtia nana
                                                   [Perezia nana]
                                             Acourtia nelsonii
                                             Acourtia nudicaulis
                                             Acourtia nudiuscula
                                             Acourtia oaxacana
                                             Acourtia ovatifolia
                                             Acourtia oxylepis
                                             Acourtia palmeri
                                                   [Perezia palmeri]
                                             Acourtia parryi
                                             Acourtia patens
                                             Acourtia pilulosa
                                             Acourtia pinetorum
                                                   [Perezia pinetorum]
                                             Acourtia platyphylla
                                             Acourtia platyptera
                                             Acourtia potosina
                                             Acourtia pringlei
                                             Acourtia pulchella
                                             Acourtia purpusii
                                                   [Perezia purpusii]
                                             Acourtia queretarana
                                             Acourtia reticulata
                                               Acourtia reticulata var. maculata
                                             Acourtia runcinata
                                                   [Perezia runcinata]
                                             Acourtia rzedowskii
                                             Acourtia scapiformis
                                             Acourtia scaposa
                                             Acourtia seemannii
                                             Acourtia simulata
                                             Acourtia sinaloana
                                             Acourtia souleana
                                             Acourtia tenoriensis
                                             Acourtia thurberi
                                                   [Perezia thurberi]
                                             Acourtia thyrsoidea
                                             Acourtia tomentosa
                                                   [Perezia tomentosa]
                                             Acourtia turbinata
                                             Acourtia umbratalis
                                             Acourtia vanillosma
                                             Acourtia venturae
                                             Acourtia wislizeni
                                                   [Perezia wislizeni]
                                               Acourtia wislizeni var. megacephala
                                                     [Perezia wislizeni var. megacephala]
                                               Acourtia wislizeni var. wislizeni
                                                     [Perezia wislizeni var. wislizeni]
                                             Acourtia wrightii
                                                   [Perezia arizonica]
                                                   [Perezia wrightii]
                                             Acourtia zacatecana
                                     Acrisione
                                             Acrisione cymosa
                                                   [Senecio cymosus]
                                             Acrisione denticulata
                                                   [Senecio yegua]
                                     Acritopappus
                                             Acritopappus micropappus
                                     Acroptilon
                                     Actinea
                                             Actinea angustifolia
                                             Actinea anthemoides
                                             Actinea argentea
                                             Actinea biennis
                                             Actinea bigelowii
                                             Actinea biternata
                                             Actinea brandegeei
                                             Actinea chrysanthemoides
                                             Actinea depressa
                                               Actinea depressa var. depressa
                                               Actinea depressa var. pygmaea
                                             Actinea doniana
                                             Actinea epunctata
                                             Actinea eradiata
                                             Actinea formosa
                                             Actinea grandiflora
                                             Actinea haenkeana
                                             Actinea helenioides
                                             Actinea herbacea
                                             Actinea heterophylla
                                               Actinea heterophylla var. heterophylla
                                               Actinea heterophylla var. linearifolia
                                             Actinea incana
                                             Actinea insignis
                                             Actinea insularis
                                             Actinea integrifolia
                                             Actinea leptoclada
                                               Actinea leptoclada var. ivesiana
                                               Actinea leptoclada var. leptoclada
                                             Actinea linearifolia
                                               Actinea linearifolia var. dodgei
                                               Actinea linearifolia var. linearifolia
                                             Actinea linearis
                                             Actinea osterhoutii
                                             Actinea palmeri
                                             Actinea quinquesquamata
                                             Actinea radiata
                                             Actinea richardsonii
                                               Actinea richardsonii var. floribunda
                                               Actinea richardsonii var. richardsonii
                                             Actinea rusbyi
                                             Actinea simplex
                                             Actinea subintegra
                                             Actinea texana
                                             Actinea torreyana
                                             Actinea tweediei
                                             Actinea ursina
                                             Actinea vaseyi
                                     Actinella
                                     Actinobole
                                             Actinobole uliginosum
                                     Actinolepis
                                     Actinomeris
                                     Adenanthellum
                                             Adenanthellum osmitoides
                                     Adenocaulon
                                             Adenocaulon bicolor
                                                   [Adenocaulon integrifolium]
                                             Adenocaulon chilense
                                             Adenocaulon lyratum
                                     Adenophyllum
                                             Adenophyllum anomalum
                                                   [Dyssodia anomala]
                                             Adenophyllum appendiculatum
                                             Adenophyllum aurantium
                                             Adenophyllum cancellatum
                                                   [Adenophyllum porophyllum var. cancellatum]
                                                   [Dyssodia cancellata]
                                                   [Dyssodia fimbriata]
                                             Adenophyllum cooperi
                                                   [Clomenocoma cooperi]
                                                   [Dyssodia cooperi]
                                                   [Lebetina cooperi]
                                             Adenophyllum porophylloides
                                                   [Clomenocoma porophylloides]
                                                   [Dyssodia porophylloides]
                                                   [Lebetina porophylloides]
                                             Adenophyllum porophyllum
                                                   [Dyssodia porophyllum]
                                             Adenophyllum pulcherrimum
                                                   [Dyssodia neomexicana var. pulcherrima]
                                             Adenophyllum speciosum
                                                   [Dyssodia speciosa]
                                             Adenophyllum squamosum
                                                   [Dyssodia squamosa]
                                             Adenophyllum wrightii
                                                   [Dyssodia neomexicana]
                                     Adenostemma
                                             Adenostemma caffrum
                                             Adenostemma lavenia
                                             Adenostemma mauritianum
                                             Adenostemma platyphyllum
                                             Adenostemma viscosum
                                                   [Adenostemma perrottetii]
                                     Adenostyles
                                             Adenostyles alliariae
                                             Adenostyles alpina
                                               Adenostyles alpina subsp. alpina
                                                     [Adenostyles glabra]
                                             Adenostyles leucophylla
                                     Adenothamnus
                                             Adenothamnus validus
                                                   [Madia valida]
                                     Aetheolaena
                                             Aetheolaena otophora
                                                   [Lasiocephalus otophorus]
                                             Aetheolaena patens
                                                   [Lasiocephalus patens]
                                             Aetheolaena rosana
                                                   [Senecio rosanus]
                                     Aetheorhiza
                                             Aetheorhiza bulbosa
                                     Afroaster
                                             Afroaster lydenburgensis
                                                   [Aster lydenburgensis]
                                             Afroaster peglerae
                                                   [Aster peglerae]
                                             Afroaster pleiocephalus
                                                   [Aster pleiocephalus]
                                             Afroaster serrulatus
                                                   [Aster harveyanus]
                                     Ageratella
                                             Ageratella microphylla
                                               Ageratella microphylla var. palmeri
                                                     [Ageratella palmeri]
                                                     [Stevia bisecta]
                                     Ageratina
                                             Ageratina abronia
                                             Ageratina acevedoana
                                             Ageratina acevedoi
                                             Ageratina acutidentata
                                             Ageratina adenachaenia
                                             Ageratina adenophora
                                                   [Eupatorium adenophorum]
                                                   [Eupatorium pasadenense]
                                             Ageratina adenophoroides
                                             Ageratina aegirophylla
                                             Ageratina ageratoides
                                             Ageratina alexanderi
                                             Ageratina allenii
                                             Ageratina almedae
                                             Ageratina altissima
                                                   [Eupatorium rugosum var. tomentellum]
                                               Ageratina altissima var. altissima
                                                     [Eupatorium rugosum]
                                               Ageratina altissima var. angustata
                                               Ageratina altissima var. roanensis
                                                     [Eupatorium rugosum var. roanense]
                                             Ageratina amblyolepis
                                                   [Eupatorium amblyolepis]
                                             Ageratina ampla
                                             Ageratina anchistea
                                             Ageratina angustifolia
                                             Ageratina anisochroma
                                             Ageratina apollinairei
                                             Ageratina appendiculata
                                             Ageratina aracaiensis
                                             Ageratina arbutifolia
                                             Ageratina areolaris
                                                   [Eupatorium areolare]
                                                   [Eupatorium brevisetum]
                                                   [Eupatorium cupressorum]
                                                   [Piptothrix areolaris]
                                             Ageratina aristeguietii
                                             Ageratina aristei
                                             Ageratina aromatica
                                               Ageratina aromatica var. incisa
                                             Ageratina arsenei
                                             Ageratina articulata
                                             Ageratina aschenborniana
                                             Ageratina asclepiadea
                                             Ageratina astillera
                                             Ageratina atrocordata
                                                   [Eupatorium atrocordatum]
                                             Ageratina austin-smithii
                                             Ageratina ayerscottiana
                                             Ageratina azangaroensis
                                             Ageratina baccharoides
                                             Ageratina badia
                                             Ageratina barbensis
                                             Ageratina barclayae
                                             Ageratina barriei
                                             Ageratina beamanii
                                             Ageratina bellidifolia
                                             Ageratina betulifolia
                                             Ageratina bimatra
                                             Ageratina bishopii
                                             Ageratina blepharilepis
                                             Ageratina bobjansenii
                                             Ageratina boekei
                                             Ageratina boyacensis
                                             Ageratina brandegeana
                                                   [Eupatorium brandegeanum]
                                             Ageratina breedlovei
                                             Ageratina brevipes
                                             Ageratina burgeri
                                             Ageratina caeciliae
                                             Ageratina calaminthifolia
                                                   [Ageratina calaminthaefolia]
                                             Ageratina calderillensis
                                             Ageratina calophylla
                                             Ageratina camachensis
                                             Ageratina campii
                                             Ageratina campyloclada
                                             Ageratina capazica
                                             Ageratina capillipes
                                             Ageratina cardiophylla
                                             Ageratina carmonis
                                             Ageratina cartagoensis
                                             Ageratina cerifera
                                                   [Eupatorium ceriferum]
                                             Ageratina chachapoyasensis
                                             Ageratina chapalensis
                                             Ageratina chazaroana
                                             Ageratina chiapensis
                                             Ageratina chimalapana
                                             Ageratina chiriquensis
                                             Ageratina choricephala
                                                   [Eupatorium choricephalum]
                                             Ageratina choricephaloides
                                             Ageratina ciliata
                                             Ageratina colimana
                                             Ageratina collodes
                                                   [Eupatorium collodes]
                                             Ageratina concordiana
                                             Ageratina conspicua
                                                   [Ageratina purpusii]
                                                   [Eupatorium purpusii]
                                             Ageratina contigua
                                             Ageratina contorta
                                             Ageratina cordata
                                             Ageratina corylifolia
                                             Ageratina costaricensis
                                             Ageratina crassiceps
                                             Ageratina crassimonticola
                                             Ageratina crassiramea
                                                   [Eupatorium crassirameum]
                                                   [Pachythamnus crassirameus]
                                             Ageratina cremasta
                                             Ageratina crenaea
                                             Ageratina croatii
                                             Ageratina cronquistii
                                             Ageratina cruzii
                                             Ageratina cuatrecasasii
                                             Ageratina cuencana
                                             Ageratina cuicatlana
                                             Ageratina cumbensis
                                             Ageratina cupressorum
                                             Ageratina cutervensis
                                             Ageratina cuzcoensis
                                             Ageratina cylindrica
                                             Ageratina dasyneura
                                             Ageratina davidsei
                                             Ageratina deltoidea
                                             Ageratina dendroides
                                             Ageratina desquamans
                                             Ageratina dictyoneura
                                             Ageratina dillonii
                                             Ageratina diversipila
                                             Ageratina dolichobasis
                                                   [Eupatorium dolichobasis]
                                             Ageratina dombeyana
                                             Ageratina dorii
                                             Ageratina dorrii
                                             Ageratina durangensis
                                             Ageratina eleazarii
                                             Ageratina elegans
                                             Ageratina enixa
                                             Ageratina ernstii
                                             Ageratina esmeraldae
                                             Ageratina espinosarum
                                                   [Eupatorium espinosarum]
                                               Ageratina espinosarum var. espinosarum
                                               Ageratina espinosarum var. subintegrifolia
                                                     [Eupatorium espinosarum var. subintegrifolium]
                                             Ageratina etlana
                                             Ageratina etlensis
                                             Ageratina exsertovenosa
                                             Ageratina fastigiata
                                             Ageratina feuereri
                                             Ageratina flaviseta
                                             Ageratina fleischmannioides
                                             Ageratina flourensifolia
                                             Ageratina fosbergii
                                             Ageratina fruticosa
                                             Ageratina funckii
                                             Ageratina geminata
                                             Ageratina gentryana
                                             Ageratina gilbertii
                                             Ageratina glabrata
                                             Ageratina glandulifera
                                             Ageratina glauca
                                             Ageratina glechonophylla
                                                   [Eupatorium glechonophyllum]
                                             Ageratina glischra
                                             Ageratina gloeoclada
                                             Ageratina glyptophlebia
                                             Ageratina goetzeana
                                             Ageratina gonzalezorum
                                             Ageratina gracilenta
                                             Ageratina gracilis
                                             Ageratina grandidentata
                                             Ageratina grandifolia
                                             Ageratina grashoffii
                                             Ageratina guatemalensis
                                             Ageratina gynoxoides
                                             Ageratina gypsophila
                                             Ageratina haageana
                                             Ageratina halbertiana
                                             Ageratina harlingii
                                             Ageratina hartii
                                             Ageratina hasegawana
                                             Ageratina havanensis
                                                   [Eupatorium havanense]
                                             Ageratina hederifolia
                                             Ageratina helenae
                                             Ageratina henzium
                                             Ageratina herbacea
                                                   [Eupatorium ageratifolium var. herbaceum]
                                                   [Eupatorium herbaceum]
                                                   [Eupatorium occidentale var. arizonicum]
                                                   [Kyrstenia herbacea]
                                             Ageratina hernandezii
                                             Ageratina herrerae
                                             Ageratina hidalgensis
                                                   [Eupatorium hidalgense]
                                             Ageratina hintonii
                                             Ageratina hintoniorum
                                             Ageratina hirtella
                                             Ageratina huahuapana
                                             Ageratina huehueteca
                                             Ageratina humboldtii
                                             Ageratina humochica
                                             Ageratina hyssopina
                                             Ageratina ibaguensis
                                             Ageratina ilicifolia
                                             Ageratina illita
                                             Ageratina iltisii
                                             Ageratina infiernillensis
                                             Ageratina intercostulata
                                             Ageratina intibucensis
                                             Ageratina iodotricha
                                             Ageratina irrasa
                                             Ageratina isolepis
                                             Ageratina ixiocladon
                                             Ageratina jahnii
                                             Ageratina jaliscensis
                                             Ageratina jalpana
                                             Ageratina jalpanserra
                                             Ageratina jocotepecana
                                             Ageratina josepaneroi
                                             Ageratina josephensis
                                             Ageratina jucunda
                                             Ageratina juxtlahuacensis
                                             Ageratina killipii
                                             Ageratina kochiana
                                             Ageratina kupperi
                                             Ageratina lapsensis
                                             Ageratina lasia
                                                   [Eupatorium lasium]
                                             Ageratina lasioneura
                                                   [Eupatorium chapalense]
                                             Ageratina latipes
                                             Ageratina leiocarpa
                                             Ageratina lemmonii
                                                   [Eupatorium lemmonii]
                                             Ageratina leptodictyon
                                             Ageratina liebmannii
                                             Ageratina ligustrina
                                                   [Eupatorium semialatum]
                                             Ageratina lobulifera
                                             Ageratina longipetiolata
                                             Ageratina lopezmirandae
                                             Ageratina lorentzii
                                             Ageratina luciae-brauniae
                                             Ageratina lucida
                                             Ageratina macbridei
                                             Ageratina macdonaldii
                                             Ageratina macvaughii
                                             Ageratina mairetiana
                                                   [Eupatorium mairetianum]
                                               Ageratina mairetiana var. elucens
                                               Ageratina mairetiana var. mairetiana
                                             Ageratina malacolepis
                                                   [Eupatorium malacolepis]
                                             Ageratina manantlana
                                             Ageratina maranonii
                                             Ageratina mariarum
                                             Ageratina markporteri
                                             Ageratina mayajana
                                             Ageratina mazatecana
                                             Ageratina megacephala
                                             Ageratina megaphylla
                                             Ageratina miahuatlana
                                             Ageratina microcephala
                                             Ageratina miquihuana
                                             Ageratina modesta
                                             Ageratina molinae
                                             Ageratina moorei
                                             Ageratina mortoniana
                                             Ageratina motozintlensis
                                             Ageratina muelleri
                                                   [Mallinoa corymbosa]
                                             Ageratina multiserrata
                                             Ageratina mutiscuensis
                                             Ageratina mygindaefolia
                                             Ageratina neblinensis
                                             Ageratina nelsonii
                                             Ageratina neohintoniorum
                                             Ageratina neriifolia
                                             Ageratina nesomii
                                                   [Ageratina rollinsii]
                                             Ageratina nubicola
                                             Ageratina oaxacana
                                             Ageratina ocanensis
                                             Ageratina occidentalis
                                                   [Eupatorium occidentale]
                                                   [Kyrstenia occidentalis]
                                             Ageratina oligocephala
                                             Ageratina oppositifolia
                                             Ageratina oreithales
                                                   [Eupatorium oreithales]
                                             Ageratina ovilla
                                             Ageratina ozolotepecana
                                             Ageratina pachypoda
                                             Ageratina palmeri
                                             Ageratina pampalcensis
                                             Ageratina paramensis
                                             Ageratina parayana
                                             Ageratina parviceps
                                             Ageratina paucibracteata
                                             Ageratina pauciflora
                                             Ageratina paupercula
                                                   [Eupatorium pauperculum]
                                             Ageratina pazcuarensis
                                                   [Eupatorium grandidentatum]
                                                   [Eupatorium pazcuarense]
                                             Ageratina pelotropha
                                             Ageratina pendula
                                             Ageratina pentlandiana
                                             Ageratina peracuminata
                                             Ageratina perezii
                                             Ageratina persetosa
                                             Ageratina petiolaris
                                             Ageratina photina
                                                   [Eupatorium photinum]
                                             Ageratina pichinchensis
                                                   [Ageratina bustamenta]
                                                   [Ageratina pacifica]
                                                   [Eupatorium pacificum]
                                               Ageratina pichinchensis var. bustamenta
                                             Ageratina piurae
                                             Ageratina plethadenia
                                             Ageratina pochutlana
                                             Ageratina polyphylla
                                             Ageratina pomaderrifolia
                                             Ageratina popayanensis
                                             Ageratina porriginosa
                                             Ageratina potosina
                                             Ageratina pringlei
                                                   [Eupatorium pringlei]
                                             Ageratina prionobia
                                             Ageratina proba
                                             Ageratina prunellifolia
                                             Ageratina prunifolia
                                             Ageratina pseudochilca
                                             Ageratina psilodora
                                             Ageratina queretaroana
                                             Ageratina rafaelensis
                                             Ageratina ramireziorum
                                             Ageratina ramonensis
                                             Ageratina rangelii
                                             Ageratina regalis
                                             Ageratina remyana
                                             Ageratina repens
                                             Ageratina reserva
                                             Ageratina resinifera
                                             Ageratina resiniflua
                                             Ageratina reticulifera
                                             Ageratina rhodopappa
                                             Ageratina rhodopoda
                                             Ageratina rhomboidea
                                                   [Eupatorium rhomboideum]
                                             Ageratina rhypodes
                                             Ageratina rhytidodes
                                             Ageratina riparia
                                                   [Fleischmannia repens]
                                             Ageratina riskindii
                                             Ageratina rivalis
                                             Ageratina robinsoniana
                                             Ageratina roraimensis
                                             Ageratina rosei
                                             Ageratina rothrockii
                                                   [Eupatorium rothrockii]
                                             Ageratina rubricaulis
                                             Ageratina rufa
                                             Ageratina rupicola
                                                   [Eupatorium rupicola]
                                             Ageratina salicifolia
                                             Ageratina saltillensis
                                                   [Eupatorium saltillense]
                                             Ageratina salvadorensis
                                             Ageratina sandersii
                                             Ageratina saxorum
                                             Ageratina schaffneri
                                             Ageratina scopulorum
                                             Ageratina scorodonioides
                                                   [Eupatorium scorodonioides]
                                             Ageratina seleri
                                             Ageratina serboana
                                             Ageratina serrulata
                                             Ageratina shastensis
                                                   [Eupatorium shastense]
                                             Ageratina simulans
                                             Ageratina sinaloensis
                                             Ageratina skutchii
                                             Ageratina sodiroi
                                             Ageratina soejimana
                                             Ageratina solana
                                             Ageratina sotarensis
                                             Ageratina sousae
                                             Ageratina spooneri
                                             Ageratina standleyi
                                             Ageratina sternbergiana
                                             Ageratina stevioides
                                             Ageratina stictophylla
                                             Ageratina stricta
                                                   [Eupatorium strictum]
                                             Ageratina subcordata
                                             Ageratina subcoriacea
                                             Ageratina subferruginea
                                             Ageratina subglabra
                                             Ageratina subinclusa
                                             Ageratina subintegra
                                             Ageratina subpenninervia
                                             Ageratina sundbergii
                                             Ageratina tambillensis
                                             Ageratina tarmensis
                                             Ageratina tejalapana
                                             Ageratina tenuis
                                             Ageratina tetragona
                                             Ageratina textitlana
                                             Ageratina theifolia
                                             Ageratina thomasii
                                             Ageratina thyrsiflora
                                             Ageratina tinifolia
                                             Ageratina tomentella
                                                   [Ageratina hebes]
                                                   [Ageratina loeseneri]
                                             Ageratina tonduzii
                                             Ageratina tovarae
                                             Ageratina trapezoides
                                             Ageratina trianae
                                             Ageratina triangulata
                                             Ageratina triniona
                                             Ageratina tristis
                                             Ageratina urbanii
                                             Ageratina vacciniifolia
                                             Ageratina valerioi
                                             Ageratina vallincola
                                             Ageratina ventillana
                                             Ageratina venulosa
                                             Ageratina vernalis
                                             Ageratina vernicosa
                                                   [Eupatorium vernicosum]
                                             Ageratina viburnoides
                                             Ageratina viejoana
                                             Ageratina villarrealii
                                             Ageratina villonacoensis
                                             Ageratina viscosa
                                             Ageratina viscosissima
                                                   [Eupatorium purpusii var. monticola]
                                                   [Eupatorium viscosissimum]
                                             Ageratina vulcanica
                                             Ageratina warnockii
                                             Ageratina websteri
                                             Ageratina whitei
                                             Ageratina wrightii
                                                   [Eupatorium wrightii]
                                             Ageratina wurdackii
                                             Ageratina xanthochlora
                                             Ageratina yaharana
                                             Ageratina yecorana
                                             Ageratina zapalinama
                                             Ageratina zaragozana
                                             Ageratina zinniifolia
                                             Ageratina zunilana
                                     Ageratum
                                             Ageratum albidum
                                             Ageratum conyzoides
                                             Ageratum corymbosum
                                                   [Ageratum corymbosum f. salicifolium]
                                                   [Ageratum lucidum]
                                                   [Ageratum rugosum]
                                                   [Alomia wendlandii]
                                             Ageratum echioides
                                             Ageratum ellipticum
                                             Ageratum gaumeri
                                             Ageratum houstonianum
                                                   [Alomia pinetorum]
                                             Ageratum isocarphoides
                                             Ageratum maritimum
                                                   [Ageratum littorale]
                                             Ageratum microcephalum
                                                   [Ageratum elassocarpum]
                                                   [Ageratum nelsonii]
                                             Ageratum paleaceum
                                             Ageratum peckii
                                             Ageratum tomentosum
                                     Agiabampoa
                                     Agnorhiza
                                     Agoseris
                                             Agoseris X dasycarpa
                                                   [Agoseris dasycarpa]
                                                   [Agoseris decumbens]
                                             Agoseris X elata
                                                   [Agoseris elata]
                                                   [Agoseris grandiflora var. laciniata]
                                                   [Agoseris laciniata]
                                                   [Agoseris tenuifolia]
                                                   [Macrorhynchus elatus]
                                                   [Macrorhynchus laciniatus]
                                                   [Stylopappus elatus]
                                                   [Troximon elatum]
                                                   [Troximon grandiflorum var. laciniatum]
                                             Agoseris apargioides
                                                   [Macrorhynchus humilis]
                                                   [Senecio goodspeedii]
                                                   [Troximon apargioides]
                                               Agoseris apargioides var. apargioides
                                                     [Agoseris apargioides subsp. apargioides]
                                               Agoseris apargioides var. eastwoodiae
                                                     [Agoseris eastwoodiae]
                                               Agoseris apargioides var. maritima
                                                     [Agoseris apargioides subsp. maritima]
                                                     [Agoseris maritima]
                                             Agoseris aurantiaca
                                                   [Agoseris angustissima]
                                                   [Agoseris carnea]
                                                   [Agoseris gaspensis]
                                                   [Agoseris howellii]
                                                   [Agoseris naskapensis]
                                                   [Agoseris vulcanica]
                                                   [Troximon aurantiacum]
                                                   [Troximon gracilens]
                                               Agoseris aurantiaca var. aurantiaca
                                                     [Agoseris aurantiaca subsp. aurantiaca]
                                                     [Agoseris gracilens subsp. greenei]
                                                     [Agoseris gracilens var. greenei]
                                                     [Agoseris gracilens]
                                                     [Agoseris greenei]
                                                     [Agoseris lackschewitzii]
                                                     [Macrorhynchus aurantiacus]
                                               Agoseris aurantiaca var. purpurea
                                                     [Agoseris arizonica]
                                                     [Agoseris attenuata]
                                                     [Agoseris aurantiaca subsp. purpurea]
                                                     [Agoseris confinis]
                                                     [Agoseris montana]
                                             Agoseris glauca
                                                   [Agoseris agrestis]
                                                   [Agoseris glauca var. agrestis]
                                                   [Agoseris procera]
                                               Agoseris glauca var. glauca
                                                     [Agoseris longula]
                                             Agoseris grandiflora
                                                   [Agoseris cinerea]
                                                   [Macrorhynchus grandiflorus]
                                                   [Stylopappus grandiflorus]
                                                   [Troximon grandiflorum]
                                                   [Troximon plebeium]
                                               Agoseris grandiflora var. grandiflora
                                                     [Agoseris cinerea]
                                                     [Agoseris grandiflora var. intermedia]
                                                     [Agoseris grandiflora var. plebeia]
                                                     [Agoseris intermedia]
                                                     [Agoseris marshallii]
                                                     [Agoseris obtusifolia]
                                                     [Agoseris plebeia]
                                               Agoseris grandiflora var. leptophylla
                                             Agoseris heterophylla
                                                   [Agoseris heterophylla var. kymapleura]
                                                   [Kymapleura heterophylla]
                                                   [Macrorhynchus heterophyllus]
                                                   [Troximon heterophyllum var. cryptopleuroides]
                                                   [Troximon heterophyllum]
                                               Agoseris heterophylla var. cryptopleura
                                                     [Agoseris californica]
                                                     [Agoseris heterophylla subsp. californica]
                                                     [Agoseris heterophylla var. californica]
                                                     [Agoseris heterophylla var. crenulata]
                                                     [Agoseris heterophylla var. turgida]
                                                     [Agoseris major]
                                                     [Cryptopleura californica]
                                               Agoseris heterophylla var. heterophylla
                                                     [Agoseris heterophylla subsp. heterophylla]
                                                     [Agoseris heterophylla var. kymapleura]
                                               Agoseris heterophylla var. quentinii
                                             Agoseris hirsuta
                                                   [Taraxacum hirsutum]
                                             Agoseris longirostris
                                             Agoseris monticola
                                                   [Agoseris covillei]
                                                   [Agoseris decumbens]
                                                   [Agoseris glauca var. dasycephala]
                                                   [Agoseris glauca var. monticola]
                                             Agoseris parviflora
                                                   [Agoseris glauca var. laciniata]
                                                   [Agoseris glauca var. parviflora]
                                                   [Agoseris tomentosa]
                                                   [Macrorhynchus glaucus var. laciniatus]
                                                   [Troximon glaucum var. laciniatum]
                                                   [Troximon glaucum var. parviflorum]
                                             Agoseris plebeja
                                             Agoseris retrorsa
                                                   [Macrorhynchus angustifolius]
                                                   [Macrorhynchus retrorsus]
                                                   [Troximon retrorsum]
                                             Agoseris × dasycarpa
                                                   [Agoseris dasycarpa]
                                                   [Agoseris decumbens]
                                             Agoseris × elata
                                                   [Agoseris elata]
                                                   [Agoseris grandiflora var. laciniata]
                                                   [Agoseris laciniata]
                                                   [Agoseris tenuifolia]
                                                   [Stylopappus elatus]
                                                   [Stylopappus laciniatus]
                                     Ainsliaea
                                             Ainsliaea acerifolia
                                                   [Ainsliaea acerifolia var. subapoda]
                                             Ainsliaea angustifolia
                                                   [Ainsliaea glumacea]
                                             Ainsliaea apiculata
                                             Ainsliaea aptera
                                             Ainsliaea apteroides
                                             Ainsliaea bonatii
                                             Ainsliaea chapaensis
                                             Ainsliaea cordifolia
                                             Ainsliaea dissecta
                                             Ainsliaea faurieana
                                                   [Ainsliaea linearis]
                                             Ainsliaea fragrans
                                             Ainsliaea fulvipes
                                                   [Ainsliaea fulvioides]
                                             Ainsliaea gracilis
                                             Ainsliaea henryi
                                               Ainsliaea henryi var. subalpina
                                             Ainsliaea latifolia
                                                   [Ainsliaea hypoleuca]
                                                   [Ainsliaea petelotii]
                                             Ainsliaea macrocephala
                                             Ainsliaea macroclinidioides
                                               Ainsliaea macroclinidioides var. kawakamii
                                                     [Ainsliaea kawakamii]
                                             Ainsliaea mairei
                                             Ainsliaea parvifolia
                                             Ainsliaea pertyoides
                                               Ainsliaea pertyoides subsp. albotomentosa
                                                     [Ainsliaea pertyoides var. albotomentosa]
                                               Ainsliaea pertyoides var. pertyoides
                                             Ainsliaea pingbianensis
                                                   [Ainsliaea gongshanensis]
                                             Ainsliaea qianiana
                                             Ainsliaea reflexa
                                                   [Ainsliaea tonkinensis]
                                             Ainsliaea spicata
                                             Ainsliaea uniflora
                                             Ainsliaea walkeri
                                             Ainsliaea yunnanensis
                                     Ajania
                                             Ajania pacifica
                                                   [Chrysanthemum pacificum]
                                             Ajania potaninii
                                                   [Tanacetum rockii]
                                     Akylopsis
                                     Alarconia
                                     Alcina
                                     Aldama
                                             Aldama anchusifolia
                                               Aldama anchusifolia var. inmarginata
                                                     [Viguiera stenophylla]
                                             Aldama angustifolia
                                                   [Viguiera angustifolia]
                                             Aldama atacamensis
                                                   [Viguiera linearis]
                                             Aldama bakeriana
                                                   [Viguiera bakeriana]
                                             Aldama brandegeei
                                                   [Alvordia brandegeei]
                                             Aldama buddlejiformis
                                                   [Viguiera buddleiiformis]
                                             Aldama canescens
                                             Aldama congesta
                                                   [Agiabampoa congesta]
                                                   [Alvordia angusta]
                                                   [Alvordia congesta]
                                             Aldama cordifolia
                                                   [Viguiera cordifolia]
                                             Aldama dentata
                                                   [Sclerocarpus schiedeanus]
                                               Aldama dentata var. zamorensis
                                             Aldama ensifolia
                                                   [Viguiera ensifolia]
                                             Aldama excelsa
                                                   [Viguiera excelsa]
                                                   [Viguiera magnicapitata]
                                             Aldama flava
                                                   [Gymnolomia decumbens]
                                                   [Viguiera flava var. papposa]
                                                   [Viguiera flava]
                                             Aldama fruticosa
                                                   [Alvordia fruticosa]
                                             Aldama ghiesbreghtii
                                                   [Viguiera hemsleyana]
                                             Aldama glomerata
                                                   [Alvordia glomerata var. glomerata]
                                                   [Alvordia glomerata var. insularis]
                                                   [Alvordia glomerata]
                                             Aldama goldmanii
                                                   [Viguiera goldmanii]
                                             Aldama grahamii
                                                   [Viguiera grahamii]
                                             Aldama guaranitica
                                                   [Viguiera guaranitica]
                                             Aldama hispida
                                                   [Viguiera sessilifolia]
                                             Aldama hypochlora
                                                   [Viguiera hypochlora]
                                             Aldama kingii
                                                   [Rhysolepis kingii]
                                             Aldama lanceolata
                                                   [Viguiera lanceolata]
                                             Aldama latibracteata
                                                   [Viguiera latibracteata]
                                             Aldama mesoamericana
                                             Aldama michoacana
                                                   [Stuessya michoacana]
                                             Aldama montana
                                                   [Viguiera montana]
                                             Aldama morelensis
                                                   [Rhysolepis morelensis]
                                                   [Viguiera morelensis]
                                             Aldama pachycephala
                                                   [Viguiera pachycephala var. simulans]
                                                   [Viguiera pachycephala]
                                             Aldama palmeri
                                                   [Viguiera palmeri]
                                             Aldama parkinsonii
                                                   [Viguiera parkinsonii]
                                             Aldama pringlei
                                                   [Viguiera pringlei]
                                             Aldama purisimae
                                                   [Viguiera purisimae]
                                             Aldama revoluta
                                                   [Viguiera revoluta]
                                             Aldama seemannii
                                                   [Viguiera seemannii]
                                     Alepidocline
                                             Alepidocline annua
                                             Alepidocline breedlovei
                                             Alepidocline macdonaldana
                                             Alepidocline trifida
                                                   [Sabazia trifida]
                                     Alloispermum
                                             Alloispermum integrifolium
                                                   [Calea integrifolia]
                                             Alloispermum michoacanum
                                               Alloispermum michoacanum var. liebmannii
                                                     [Sabazia liebmannii var. ovatifolia]
                                                     [Sabazia liebmannii]
                                             Alloispermum palmeri
                                                   [Sabazia palmeri]
                                             Alloispermum scabrifolium
                                                   [Calea scabrifolia]
                                             Alloispermum scabrum
                                                   [Calea peduncularis var. epapposa]
                                                   [Calea peduncularis]
                                     Almutaster
                                             Almutaster pauciflorus
                                                   [Aster pauciflorus]
                                                   [Tripolium pauciflorum]
                                     Alomia
                                             Alomia ageratoides
                                                   [Alomia hintonii]
                                     Alvordia
                                     Amauria
                                             Amauria brandegeeana
                                                   [Amauria brandegeana]
                                                   [Perityle brandegeeana]
                                             Amauria carterae
                                             Amauria rotundifolia
                                     Amauriopsis
                                     Amberboa
                                             Amberboa moschata
                                                   [Centaurea moschata]
                                     Amblyolepis
                                             Amblyolepis setigera
                                     Amblyopappus
                                             Amblyopappus pusillus
                                                   [Aromia tenuifolia]
                                     Ambrosia
                                             Ambrosia X platyspina
                                                   [Ambrosia platyspina]
                                                   [Hymenoclea platyspina]
                                             Ambrosia acanthicarpa
                                                   [Franseria acanthicarpa]
                                                   [Franseria californica]
                                                   [Franseria hookeriana]
                                                   [Gaertneria acanthicarpa]
                                             Ambrosia acuminata
                                                   [Franseria acuminata]
                                             Ambrosia ambrosioides
                                                   [Franseria ambrosioides]
                                                   [Gaertnera ambrosiodes]
                                                   [Gaertneria ambrosioides]
                                                   [Xanthidium ambrosioides]
                                             Ambrosia arborescens
                                                   [Franseria arborescens]
                                             Ambrosia artemisiifolia
                                                   [Ambrosia artemisiifolia var. elatior]
                                               Ambrosia artemisiifolia var. artemisiifolia
                                               Ambrosia artemisiifolia var. elatior
                                                     [Ambrosia elatior]
                                               Ambrosia artemisiifolia var. paniculata
                                             Ambrosia bidentata
                                             Ambrosia bryantii
                                                   [Franseria bryantii]
                                             Ambrosia camphorata
                                                   [Ambrosia bipinnatifida]
                                                   [Franseria bipinnatifida var. dubia]
                                                   [Franseria camphorata var. leptophylla]
                                                   [Franseria camphorata]
                                                   [Franseria hispida]
                                             Ambrosia canescens
                                             Ambrosia carduacea
                                                   [Franseria acerifolia]
                                                   [Franseria carduacea]
                                             Ambrosia chamissonis
                                                   [Ambrosia chamissonis var. bipinnatisecta]
                                                   [Ambrosia chamissonis var. chamissonis]
                                                   [Franseria chamissonis subsp. bipinnatisecta]
                                                   [Franseria chamissonis subsp. chamissonis]
                                                   [Franseria chamissonis var. bipinnatisecta]
                                                   [Franseria chamissonis var. chamissonis]
                                                   [Franseria chamissonis var. viscida]
                                                   [Franseria chamissonis]
                                                   [Franseria cuneifolia]
                                                   [Franseria villosa]
                                                   [Gaertnera chamissonis]
                                                   [Gaertneria chamissonis]
                                               Ambrosia chamissonis var. chamissonis
                                             Ambrosia cheiranthifolia
                                             Ambrosia chenopodiifolia
                                                   [Franseria chenopodiifolia]
                                                   [Franseria lancifolia]
                                                   [Gaertnera chenopodiifolia]
                                                   [Gaertneria chenopodiifolia]
                                             Ambrosia confertiflora
                                                   [Franseria confertiflora]
                                                   [Franseria strigulosa]
                                                   [Gaertneria tenuifolia]
                                             Ambrosia cordifolia
                                                   [Franseria cordifolia]
                                             Ambrosia cumanensis
                                             Ambrosia deltoidea
                                                   [Franseria deltoidea]
                                             Ambrosia dentata
                                             Ambrosia divaricata
                                                   [Franseria divaricata]
                                             Ambrosia dumosa
                                                   [Franseria dumosa]
                                                   [Gaertnera dumosa]
                                                   [Gaertneria dumosa]
                                             Ambrosia eriocentra
                                                   [Franseria eriocentra]
                                                   [Gaertneria eriocentra]
                                             Ambrosia flexuosa
                                                   [Franseria flexuosa]
                                             Ambrosia grayi
                                             Ambrosia hispida
                                                   [Ambrosia crithmifolia]
                                             Ambrosia humi
                                             Ambrosia ilicifolia
                                                   [Franseria ilicifolia]
                                                   [Gaertneria ilicifolia]
                                             Ambrosia linearis
                                             Ambrosia magdalenae
                                                   [Franseria intricata]
                                                   [Franseria magdalenae]
                                             Ambrosia maritima
                                             Ambrosia monogyra
                                                   [Hymenoclea monogyra]
                                             Ambrosia nivea
                                             Ambrosia peruviana
                                             Ambrosia platyspina
                                                   [Hymenoclea platyspina]
                                             Ambrosia psilostachya
                                                   [Ambrosia californica]
                                                   [Ambrosia psilostachya var. californica]
                                                   [Ambrosia psilostachya var. lindheimeriana]
                                                   [Ambrosia psilostachya var. psilostachya]
                                                   [Ambrosia rugelii]
                                               Ambrosia psilostachya var. coronopifolia
                                                     [Ambrosia coronopifolia]
                                             Ambrosia pumila
                                                   [Franseria pumila]
                                             Ambrosia salsola
                                                   [Hymenoclea salsola var. patula]
                                                   [Hymenoclea salsola var. salsola]
                                                   [Hymenoclea salsola]
                                               Ambrosia salsola var. salsola
                                                     [Ambrosia salsola var. fasciculata]
                                                     [Hymenoclea fasciculata var. patula]
                                                     [Hymenoclea salsola var. fasciculata]
                                                     [Hymenoclea salsola var. patula]
                                                     [Hymenoclea salsola var. salsola]
                                               Ambrosia salsola var. pentalepis
                                                     [Hymenoclea pentalepis]
                                                     [Hymenoclea salsola var. pentalepis]
                                             Ambrosia sandersonii
                                             Ambrosia tenuifolia
                                                   [Ambrosia simulans]
                                                   [Franseria tenuifolia]
                                             Ambrosia tomentosa
                                                   [Franseria discolor]
                                                   [Gaertneria discolor]
                                                   [Gaertneria tomentosa]
                                             Ambrosia trifida
                                                   [Ambrosia trifida var. trifida]
                                               Ambrosia trifida var. texana
                                                     [Ambrosia aptera]
                                             Ambrosia × platyspina
                                                   [Hymenoclea platyspina]
                                               Bulbophyllum ambrosia subsp. ambrosia
                                                     [Bulbophyllum watsonianum]
                                     Ammobium
                                             Ammobium alatum
                                     Ammodia
                                     Amolinia
                                     Ampelaster
                                             Ampelaster carolinianus
                                                   [Aster carolinianus]
                                     Amphiachyris
                                             Amphiachyris amoena
                                             Amphiachyris dracunculoides
                                                   [Xanthocephalum dracunculoides]
                                     Amphipappus
                                             Amphipappus fremontii
                                                   [Amphiachyris fremontii]
                                               Amphipappus fremontii subsp. fremontii
                                               Amphipappus fremontii var. fremontii
                                                     [Amphipappus fremontii subsp. fremontii]
                                               Amphipappus fremontii var. spinosus
                                                     [Amphipappus fremontii subsp. spinosus]
                                     Anacyclus
                                             Anacyclus clavatus
                                                   [Anacyclus tomentosus]
                                             Anacyclus homogamos
                                             Anacyclus maroccanus
                                             Anacyclus pyrethrum
                                             Anacyclus radiatus
                                     Anaphalioides
                                             Anaphalioides bellidioides
                                                   [Helichrysum bellidioides var. prostratum]
                                                   [Helichrysum bellidioides]
                                     Anaphalis
                                             Anaphalis aureopunctata
                                               Anaphalis aureopunctata var. atrata
                                               Anaphalis aureopunctata var. plantaginifolia
                                             Anaphalis busua
                                             Anaphalis contorta
                                                   [Anaphalis contorta var. pellucida]
                                             Anaphalis javanica
                                             Anaphalis longifolia
                                             Anaphalis margaritacea
                                                   [Anaphalis sierrae]
                                                   [Gnaphalium margaritaceum]
                                               Anaphalis margaritacea subsp. margaritacea
                                                     [Anaphalis margaritacea var. angustior]
                                                     [Anaphalis margaritacea var. intercedens]
                                                     [Anaphalis margaritacea var. occidentalis]
                                                     [Anaphalis margaritacea var. subalpina]
                                                     [Anaphalis sierrae]
                                                     [Anaphalis subalpina]
                                               Anaphalis margaritacea var. angustifolia
                                                     [Anaphalis margaritacea var. japonica]
                                               Anaphalis margaritacea var. cinnamomea
                                             Anaphalis nepalensis
                                               Anaphalis nepalensis var. corymbosa
                                             Anaphalis oxyphylla
                                             Anaphalis rhododactyla
                                             Anaphalis subdecurrens
                                             Anaphalis thwaitesii
                                             Anaphalis zeylanica
                                     Ancistrocarphus
                                             Ancistrocarphus filagineus
                                                   [Stylocline filaginea var. depressa]
                                                   [Stylocline filaginea]
                                             Ancistrocarphus keilii
                                     Andryala
                                             Andryala arenaria
                                             Andryala chevallieri
                                             Andryala glandulosa
                                               Andryala glandulosa subsp. cheiranthifolia
                                                     [Andryala varia]
                                             Andryala integrifolia
                                             Andryala maroccana
                                             Andryala pinnatifida
                                             Andryala ragusina
                                                   [Andryala ramosissima]
                                             Andryala rothia
                                     Angianthus
                                             Angianthus acrohyalinus
                                             Angianthus conocephalus
                                             Angianthus cunninghamii
                                     Anisocarpus
                                             Anisocarpus madioides
                                                   [Madia madioides]
                                             Anisocarpus scabridus
                                                   [Raillardella scabrida]
                                                   [Raillardiopsis scabrida]
                                     Anisocoma
                                             Anisocoma acaulis
                                     Antennaria
                                             Antennaria alpina
                                                   [Antennaria alpina var. compacta]
                                                   [Antennaria cana]
                                                   [Antennaria labradorica]
                                                   [Antennaria pallida]
                                                   [Antennaria stolonifera]
                                                   [Antennaria wiegandii]
                                             Antennaria anaphaloides
                                             Antennaria arcuata
                                             Antennaria argentea
                                             Antennaria aromatica
                                             Antennaria canescens
                                             Antennaria carpatica
                                             Antennaria corymbosa
                                                   [Antennaria dioica var. corymbosa]
                                                   [Antennaria hygrophila]
                                                   [Antennaria nardina]
                                             Antennaria densifolia
                                             Antennaria dimorpha
                                             Antennaria dioica
                                                   [Antennaria parviflora]
                                             Antennaria flagellaris
                                                   [Antennaria dimorpha var. flagellaris]
                                             Antennaria friesiana
                                               Antennaria friesiana subsp. alaskana
                                                     [Antennaria alaskana]
                                               Antennaria friesiana subsp. friesiana
                                             Antennaria geyeri
                                             Antennaria howellii
                                               Antennaria howellii subsp. canadensis
                                                     [Antennaria canadensis]
                                                     [Antennaria neglecta var. randii]
                                               Antennaria howellii subsp. howellii
                                                     [Antennaria howellii var. howellii]
                                                     [Antennaria neglecta subsp. howellii]
                                                     [Antennaria neglecta var. howellii]
                                                     [Antennaria neodioica subsp. howellii]
                                               Antennaria howellii subsp. neodioica
                                                     [Antennaria neglecta var. attenuata]
                                                     [Antennaria neodioica]
                                                     [Antennaria obovata]
                                                     [Antennaria rupicola]
                                               Antennaria howellii subsp. petaloidea
                                                     [Antennaria concolor]
                                                     [Antennaria petaloidea]
                                             Antennaria lanata
                                             Antennaria luzuloides
                                               Antennaria luzuloides subsp. aberrans
                                                     [Antennaria argentea subsp. aberrans]
                                                     [Antennaria luzuloides var. microcephala]
                                                     [Antennaria microcephala]
                                                     [Antennaria pyramidata]
                                               Antennaria luzuloides subsp. luzuloides
                                                     [Antennaria luzuloides var. luzuloides]
                                                     [Antennaria luzuloides var. oblanceolata]
                                               Antennaria luzuloides var. luzuloides
                                             Antennaria marginata
                                                   [Antennaria dioica var. marginata]
                                             Antennaria media
                                                   [Antennaria alpina var. media]
                                                   [Antennaria austromontana]
                                                   [Antennaria candida]
                                                   [Antennaria densa]
                                                   [Antennaria media subsp. media]
                                             Antennaria microphylla
                                                   [Antennaria nitida]
                                                   [Antennaria solstitialis]
                                             Antennaria monocephala
                                               Antennaria monocephala subsp. angustata
                                                     [Antennaria burwellensis]
                                               Antennaria monocephala subsp. monocephala
                                             Antennaria neglecta
                                                   [Antennaria campestris]
                                                   [Antennaria nebraskensis]
                                             Antennaria parlinii
                                               Antennaria parlinii subsp. fallax
                                                     [Antennaria ambigens]
                                                     [Antennaria brainerdii]
                                                     [Antennaria fallax]
                                                     [Antennaria farwellii]
                                                     [Antennaria munda]
                                                     [Antennaria occidentalis]
                                                     [Antennaria plantaginifolia var. ambigens]
                                               Antennaria parlinii subsp. parlinii
                                                     [Antennaria arnoglossa]
                                             Antennaria parvifolia
                                                   [Antennaria aprica]
                                                   [Antennaria latisquamea]
                                                   [Antennaria parvifolia f. roseoides]
                                                   [Antennaria rhodantha]
                                             Antennaria plantaginifolia
                                                   [Antennaria nemoralis]
                                             Antennaria pulchella
                                                   [Antennaria alpina var. scabra]
                                                   [Antennaria media subsp. ciliata]
                                                   [Antennaria media subsp. pulchella]
                                                   [Antennaria scabra]
                                             Antennaria pulcherrima
                                             Antennaria racemosa
                                             Antennaria rosea
                                                   [Antennaria dioica var. rosea]
                                               Antennaria rosea subsp. arida
                                                     [Antennaria arida]
                                                     [Antennaria scariosa]
                                               Antennaria rosea subsp. confinis
                                                     [Antennaria angustifolia]
                                                     [Antennaria arida var. humilis]
                                                     [Antennaria concinna]
                                                     [Antennaria dioica var. kernensis]
                                                     [Antennaria elegans]
                                                     [Antennaria incarnata]
                                                     [Antennaria polyphylla]
                                                     [Antennaria sedoides]
                                               Antennaria rosea subsp. pulvinata
                                                     [Antennaria albescens]
                                                     [Antennaria fusca]
                                                     [Antennaria isolepis]
                                                     [Antennaria neodioica var. gaspensis]
                                                     [Antennaria pulvinata]
                                               Antennaria rosea subsp. rosea
                                                     [Antennaria chlorantha]
                                                     [Antennaria formosa]
                                                     [Antennaria hendersonii]
                                                     [Antennaria imbricata]
                                                     [Antennaria oxyphylla]
                                                     [Antennaria rosea var. rosea]
                                                     [Antennaria speciosa]
                                             Antennaria rosulata
                                             Antennaria sawyeri
                                             Antennaria soliceps
                                             Antennaria solitaria
                                             Antennaria stenophylla
                                             Antennaria suffrutescens
                                             Antennaria umbrinella
                                                   [Antennaria dioica var. kernensis]
                                                   [Antennaria reflexa]
                                             Antennaria virginica
                                     Anthemis
                                             Anthemis alpestris
                                             Anthemis altissima
                                             Anthemis arvensis
                                                   [Anthemis arvensis var. agrestis]
                                                   [Chamaemelum arvense]
                                               Anthemis arvensis subsp. arvensis
                                             Anthemis boveana
                                             Anthemis chrysantha
                                             Anthemis cotula
                                                   [Anthemis foetida]
                                                   [Chamaemelum cotula]
                                                   [Chamaemelum foetidum]
                                                   [Maruta cotula]
                                             Anthemis cretica
                                             Anthemis maritima
                                             Anthemis marschalliana
                                               Anthemis marschalliana subsp. pectinata
                                                     [Chrysanthemum alpinum]
                                             Anthemis microsperma
                                             Anthemis odontostephana
                                             Anthemis pedunculata
                                               Anthemis pedunculata subsp. clausonis
                                               Anthemis pedunculata subsp. pedunculata
                                             Anthemis persica
                                                   [Lyonnetia persica]
                                             Anthemis pseudocotula
                                                   [Anthemis pseudocotula subsp. rotata]
                                             Anthemis ruthenica
                                             Anthemis tenuisecta
                                             Anthemis tigreensis
                                     Antheropeas
                                     Apalochlamys
                                             Apalochlamys spectabilis
                                                   [Cassinia spectabilis]
                                     Apargia
                                     Apargidium
                                     Aphanostephus
                                             Aphanostephus pilosus
                                             Aphanostephus ramosissimus
                                               Aphanostephus ramosissimus var. humilis
                                                     [Aphanostephus humilis]
                                                     [Aphanostephus potosinus]
                                               Aphanostephus ramosissimus var. ramosissimus
                                               Aphanostephus ramosissimus var. ramosus
                                                     [Aphanostephus pachyrrhizus]
                                             Aphanostephus riddellii
                                             Aphanostephus skirrhobasis
                                                   [Aphanostephus arkansanus var. hallii]
                                               Aphanostephus skirrhobasis var. kidderi
                                               Aphanostephus skirrhobasis var. skirrhobasis
                                               Aphanostephus skirrhobasis var. thalassius
                                             Aphanostephus skirrobasis
                                                   [Aphanostephus arkansanus]
                                               Aphanostephus skirrobasis var. kidderi
                                                     [Aphanostephus kidderi]
                                               Aphanostephus skirrobasis var. skirrobasis
                                     Aphantochaeta
                                     Aphyllocladus
                                             Aphyllocladus spartioides
                                     Aplopappus
                                             Aplopappus cuneatus
                                     Apodocephala
                                             Apodocephala pauciflora
                                     Aposeris
                                             Aposeris foetida
                                     Archibaccharis
                                             Archibaccharis albescens
                                                   [Archibaccharis hirtella var. albescens]
                                             Archibaccharis almedana
                                             Archibaccharis androgyna
                                             Archibaccharis asperifolia
                                                   [Archibaccharis sescenticeps]
                                                   [Hemibaccharis sescenticeps]
                                             Archibaccharis auriculata
                                                   [Archibaccharis glandulosa]
                                                   [Archibaccharis hieraciifolia]
                                             Archibaccharis blakeana
                                             Archibaccharis breedlovei
                                             Archibaccharis corymbosa
                                             Archibaccharis flexilis
                                             Archibaccharis hieracioides
                                             Archibaccharis hirtella
                                                   [Archibaccharis hirtella var. taeniotricha]
                                             Archibaccharis intermedia
                                                   [Archibaccharis hirtella var. intermedia]
                                             Archibaccharis peninsularis
                                             Archibaccharis salmeoides
                                             Archibaccharis schiedeana
                                             Archibaccharis serratifolia
                                             Archibaccharis simplex
                                             Archibaccharis subsessilis
                                             Archibaccharis taeniotricha
                                             Archibaccharis trichotoma
                                                   [Archibaccharis caloneura]
                                     Arctanthemum
                                             Arctanthemum arcticum
                                               Arctanthemum arcticum subsp. arcticum
                                                     [Chrysanthemum arcticum]
                                                     [Leucanthemum arcticum]
                                               Arctanthemum arcticum subsp. polare
                                             Arctanthemum integrifolium
                                                   [Chrysanthemum integrifolium]
                                                   [Hulteniella integrifolia]
                                     Arctium
                                             Arctium lappa
                                               Arctium lappa subsp. lappa
                                                     [Arctium vulgare]
                                                     [Lappa major]
                                             Arctium minus
                                                   [Lappa minor]
                                             Arctium nemorosum
                                                   [Arctium minus subsp. nemorosum]
                                             Arctium tomentosum
                                     Arctotheca
                                             Arctotheca calendula
                                                   [Arctotheca calendulacea]
                                                   [Cryptostemma calendulaceum]
                                             Arctotheca populifolia
                                             Arctotheca prostrata
                                     Arctotis
                                             Arctotis acaulis
                                             Arctotis arctotoides
                                                   [Venidium decurrens]
                                             Arctotis aspera
                                             Arctotis decurrens
                                             Arctotis diffusa
                                                   [Arctotis canescens]
                                             Arctotis fastuosa
                                                   [Venidium fastuosum]
                                             Arctotis glandulosa
                                             Arctotis gumbletonii
                                             Arctotis laciniata
                                             Arctotis revoluta
                                                   [Arctotis candida]
                                             Arctotis stoechadifolia
                                                   [Arctotis grandis]
                                                   [Arctotis stoechadifolia var. grandis]
                                             Arctotis venusta
                                     Argentipallium
                                             Argentipallium obtusifolium
                                                   [Helichrysum obtusifolium]
                                     Argyranthemum
                                             Argyranthemum adauctum
                                               Argyranthemum adauctum subsp. canariense
                                                     [Argyranthemum canariense]
                                             Argyranthemum broussonetii
                                             Argyranthemum filifolium
                                             Argyranthemum foeniculaceum
                                                   [Chrysanthemum foeniculaceum]
                                             Argyranthemum frutescens
                                                   [Chrysanthemum frutescens]
                                               Argyranthemum frutescens subsp. canariae
                                               Argyranthemum frutescens subsp. foeniculaceum
                                               Argyranthemum frutescens subsp. frutescens
                                                     [Chrysanthemum frutescens]
                                               Argyranthemum frutescens subsp. gracilescens
                                               Argyranthemum frutescens subsp. succulentum
                                             Argyranthemum tenerifae
                                                   [Argyranthemum anethifolium]
                                     Argyroxiphium
                                             Argyroxiphium caliginis
                                             Argyroxiphium grayanum
                                             Argyroxiphium kauense
                                             Argyroxiphium sandwicense
                                     Arida
                                     Aristeguietia
                                             Aristeguietia glutinosa
                                             Aristeguietia lamiifolia
                                             Aristeguietia salvia
                                                   [Eupatorium salvia]
                                     Arnica
                                             Arnica acaulis
                                             Arnica amplexifolia
                                             Arnica angustifolia
                                               Arnica angustifolia subsp. angustifolia
                                                     [Arnica alpina subsp. angustifolia]
                                                     [Arnica alpina subsp. attenuata]
                                                     [Arnica angustifolia subsp. attenuata]
                                                     [Arnica attenuata]
                                               Arnica angustifolia subsp. tomentosa
                                                     [Arnica alpina subsp. tomentosa]
                                             Arnica cernua
                                                   [Arnica chandleri]
                                             Arnica chamissonis
                                                   [Arnica bernardina]
                                                   [Arnica bruceae]
                                                   [Arnica celsa]
                                                   [Arnica chamissonis subsp. chamissonis]
                                                   [Arnica chamissonis subsp. foliosa]
                                                   [Arnica chamissonis subsp. incana]
                                                   [Arnica chamissonis var. andina]
                                                   [Arnica chamissonis var. bernardina]
                                                   [Arnica chamissonis var. chamissonis]
                                                   [Arnica chamissonis var. foliosa]
                                                   [Arnica chamissonis var. incana]
                                                   [Arnica chamissonis var. jepsoniana]
                                                   [Arnica chamissonis var. longinodosa]
                                                   [Arnica foliosa var. foliosa]
                                                   [Arnica foliosa var. incana]
                                                   [Arnica foliosa]
                                                   [Arnica lanulosa]
                                                   [Arnica ocreata]
                                                   [Arnica rhizomata]
                                                   [Arnica tomentulosa]
                                               Arnica chamissonis var. incana
                                             Arnica cordifolia
                                                   [Arnica cordifolia subsp. genuina]
                                                   [Arnica cordifolia var. humilis]
                                                   [Arnica cordifolia var. pumila]
                                                   [Arnica paniculata]
                                               Arnica cordifolia subsp. cordifolia
                                               Arnica cordifolia var. cordifolia
                                             Arnica dealbata
                                                   [Whitneya dealbata]
                                             Arnica discoidea
                                                   [Arnica cordifolia var. eradiata]
                                                   [Arnica denudata]
                                                   [Arnica discoidea var. alata]
                                                   [Arnica discoidea var. eradiata]
                                                   [Arnica parviflora subsp. genuina]
                                                   [Arnica parviflora]
                                                   [Arnica sanhedrensis]
                                             Arnica fulgens
                                                   [Arnica pedunculata]
                                             Arnica gracilis
                                                   [Arnica arcana]
                                                   [Arnica jonesii]
                                                   [Arnica latifolia var. gracilis]
                                                   [Arnica multiflora]
                                             Arnica griscomii
                                               Arnica griscomii subsp. frigida
                                                     [Arnica frigida]
                                                     [Arnica louiseana subsp. frigida]
                                                     [Arnica louiseana var. pilosa]
                                               Arnica griscomii subsp. griscomii
                                             Arnica lanceolata
                                               Arnica lanceolata subsp. prima
                                                     [Arnica amplexicaulis subsp. prima]
                                                     [Arnica amplexicaulis var. amplexicaulis]
                                                     [Arnica amplexicaulis var. piperi]
                                                     [Arnica amplexicaulis var. prima]
                                                     [Arnica amplexicaulis]
                                                     [Arnica amplexifolia subsp. genuina]
                                                     [Arnica aspera]
                                                     [Arnica macounii]
                                             Arnica latifolia
                                                   [Arnica betonicifolia]
                                                   [Arnica eriopoda]
                                                   [Arnica glabrata]
                                                   [Arnica grandifolia]
                                                   [Arnica granulifera]
                                                   [Arnica membranacea]
                                                   [Arnica menziesii]
                                                   [Arnica paucibracteata]
                                                   [Arnica teucriifolia]
                                                   [Arnica ventorum]
                                               Arnica latifolia var. latifolia
                                             Arnica lessingii
                                             Arnica lonchophylla
                                                   [Arnica chionopappa]
                                                   [Arnica fernaldii]
                                                   [Arnica lonchophylla subsp. arnoglossa]
                                                   [Arnica lonchophylla subsp. chionopappa]
                                             Arnica longifolia
                                                   [Arnica ciliaris]
                                                   [Arnica longifolia subsp. genuina]
                                                   [Arnica longifolia subsp. myriadenia]
                                             Arnica louiseana
                                             Arnica mollis
                                                   [Arnica arachnoidea]
                                                   [Arnica mollis var. scaberrima]
                                                   [Arnica rivularis]
                                                   [Arnica scaberrima]
                                                   [Arnica silvatica]
                                             Arnica montana
                                             Arnica nevadensis
                                                   [Arnica tomentella]
                                             Arnica ovata
                                                   [Arnica X diversifolia]
                                                   [Arnica diversifolia]
                                                   [Arnica]
                                             Arnica parryi
                                                   [Arnica foliosa var. sonnei]
                                                   [Arnica parryi subsp. genuina]
                                                   [Arnica parryi subsp. parryi]
                                                   [Arnica parryi subsp. sonnei]
                                                   [Arnica parryi var. parryi]
                                                   [Arnica parryi var. sonnei]
                                                   [Arnica sonnei]
                                             Arnica rydbergii
                                                   [Arnica aurantiaca]
                                                   [Arnica caespitosa]
                                                   [Arnica sulcata]
                                             Arnica sororia
                                                   [Arnica fulgens var. sororia]
                                             Arnica spathulata
                                                   [Arnica cusickii]
                                                   [Arnica eastwoodiae]
                                                   [Arnica spathulata subsp. eastwoodiae]
                                                   [Arnica spathulata subsp. genuina]
                                                   [Arnica spathulata subsp. spathulata]
                                                   [Arnica spathulata var. spathulata]
                                               Arnica spathulata subsp. eastwoodae
                                             Arnica unalaschcensis
                                             Arnica venosa
                                             Arnica viscosa
                                                   [Chrysopsis shastensis]
                                     Arnicastrum
                                             Arnicastrum glandulosum
                                     Arnoglossum
                                             Arnoglossum album
                                             Arnoglossum atriplicifolium
                                                   [Cacalia atriplicifolia]
                                                   [Mesadenia atriplicifolia]
                                             Arnoglossum diversifolium
                                                   [Mesadenia diversifolia]
                                             Arnoglossum floridanum
                                                   [Cacalia floridana]
                                             Arnoglossum muehlenbergii
                                                   [Cacalia muhlenbergii]
                                             Arnoglossum ovatum
                                                   [Arnoglossum elliottii]
                                                   [Cacalia lanceolata var. elliottii]
                                                   [Cacalia lanceolata]
                                                   [Cacalia ovata]
                                                   [Mesadenia lanceolata]
                                             Arnoglossum plantagineum
                                                   [Cacalia plantaginea]
                                                   [Mesadenia tuberosa]
                                             Arnoglossum sulcatum
                                                   [Cacalia sulcata]
                                     Artemisia
                                             Artemisia abrotanum
                                             Artemisia absinthium
                                             Artemisia afra
                                             Artemisia alba
                                             Artemisia albicans
                                                   [Sphaeromeria cana]
                                                   [Tanacetum canum]
                                             Artemisia alpina
                                                   [Artemisia caucasica]
                                             Artemisia annua
                                             Artemisia arborescens
                                             Artemisia arbuscula
                                               Artemisia arbuscula subsp. arbuscula
                                                     [Artemisia arbuscula var. arbuscula]
                                                     [Artemisia tridentata subsp. arbuscula]
                                               Artemisia arbuscula subsp. longiloba
                                                     [Artemisia arbuscula subsp. longicaulis]
                                                     [Artemisia arbuscula var. longiloba]
                                                     [Artemisia longiloba]
                                                     [Artemisia spiciformis var. longiloba]
                                               Artemisia arbuscula subsp. thermopola
                                               Artemisia arbuscula var. arbuscula
                                             Artemisia arctica
                                             Artemisia argophylla
                                             Artemisia atlantica
                                             Artemisia australis
                                                   [Artemisia hillebrandii]
                                             Artemisia austriaca
                                             Artemisia biennis
                                                   [Artemisia biennis var. biennis]
                                             Artemisia bigelovii
                                                   [Artemisia petrophila]
                                                   [Seriphidium bigelowii]
                                             Artemisia borealis
                                               Artemisia borealis subsp. borealis
                                                     [Artemisia borealis var. borealis]
                                                     [Artemisia campestris subsp. borealis]
                                                     [Artemisia campestris var. borealis]
                                                     [Artemisia groenlandica]
                                             Artemisia californica
                                                   [Artemisia abrotanoides]
                                                   [Artemisia fischeriana]
                                                   [Artemisia foliosa]
                                                   [Crossostephium insulare]
                                             Artemisia campestris
                                               Artemisia campestris subsp. campestris
                                                     [Artemisia campestris var. campestris]
                                               Artemisia campestris subsp. canadensis
                                                     [Artemisia canadensis]
                                               Artemisia campestris subsp. caudata
                                                     [Artemisia caudata]
                                               Artemisia campestris subsp. pacifica
                                                     [Artemisia campestris var. scouleriana]
                                                     [Artemisia camporum]
                                                     [Artemisia pacifica]
                                               Artemisia campestris var. scouleriana
                                             Artemisia cana
                                               Artemisia cana subsp. bolanderi
                                                     [Artemisia bolanderi]
                                                     [Artemisia tridentata subsp. bolanderi]
                                                     [Artemisia tridentata var. bolanderi]
                                                     [Seriphidium bolanderi]
                                                     [Seriphidium canum subsp. bolanderi]
                                               Artemisia cana subsp. cana
                                               Artemisia cana subsp. viscidula
                                                     [Artemisia argilosa]
                                                     [Artemisia cana var. viscidula]
                                                     [Artemisia viscidula]
                                               Artemisia cana var. cana
                                             Artemisia capillaris
                                             Artemisia capitata
                                                   [Tanacetum capitatum]
                                             Artemisia carruthii
                                                   [Artemisia carruthii var. wrightii]
                                                   [Artemisia coloradensis]
                                             Artemisia commutata
                                             Artemisia constricta
                                                   [Sphaeromeria compacta]
                                                   [Tanacetum compactum]
                                             Artemisia discolor
                                             Artemisia douglasiana
                                                   [Artemisia caudata var. douglasiana]
                                                   [Artemisia commutata var. douglasiana]
                                                   [Artemisia ludoviciana var. douglasiana]
                                                   [Artemisia vulgaris subsp. douglasiana]
                                             Artemisia dracunculus
                                                   [Artemisia aromatica]
                                                   [Artemisia dracunculina]
                                                   [Artemisia dracunculoides]
                                               Artemisia dracunculus subsp. dracunculus
                                             Artemisia dubia
                                             Artemisia elatior
                                             Artemisia estesii
                                             Artemisia filifolia
                                             Artemisia flahaultii
                                             Artemisia franserioides
                                             Artemisia frigida
                                             Artemisia furcata
                                               Artemisia furcata subsp. furcata
                                                     [Artemisia hyperborea]
                                                     [Artemisia trifurcata]
                                             Artemisia glacialis
                                             Artemisia glauca
                                                   [Artemisia dracunculoides var. glauca]
                                                   [Artemisia dracunculus subsp. glauca]
                                             Artemisia globularia
                                             Artemisia glomerata
                                                   [Artemisia leontopodioides]
                                             Artemisia gmelinii
                                                   [Artemisia sacrorum]
                                             Artemisia herba-alba
                                             Artemisia heterophylla
                                             Artemisia inaequifolia
                                                   [Sphaeromeria diversifolia]
                                             Artemisia japonica
                                             Artemisia judaica
                                             Artemisia kennedyi
                                             Artemisia kitadakensis
                                             Artemisia kruhsiana
                                               Artemisia kruhsiana subsp. alaskana
                                                     [Artemisia alaskana]
                                             Artemisia laciniata
                                               Artemisia laciniata subsp. parryi
                                                     [Artemisia parryi]
                                             Artemisia lactiflora
                                             Artemisia lancea
                                                   [Artemisia feddei]
                                             Artemisia lingyeouruennii
                                             Artemisia longifolia
                                             Artemisia ludoviciana
                                               Artemisia ludoviciana subsp. albula
                                                     [Artemisia albula]
                                                     [Artemisia ludoviciana var. albula]
                                               Artemisia ludoviciana subsp. candicans
                                                     [Artemisia candicans]
                                                     [Artemisia gracilenta]
                                                     [Artemisia ludoviciana var. candicans]
                                                     [Artemisia ludoviciana var. latiloba]
                                                     [Artemisia platyphylla]
                                               Artemisia ludoviciana subsp. incompta
                                                     [Artemisia arachnoidea]
                                                     [Artemisia atomifera]
                                                     [Artemisia lindleyana]
                                                     [Artemisia ludoviciana var. incompta]
                                               Artemisia ludoviciana subsp. lindleyana
                                                     [Artemisia lindleyana]
                                                     [Artemisia vulgaris subsp. lindleyana]
                                               Artemisia ludoviciana subsp. ludoviciana
                                                     [Artemisia cuneata]
                                                     [Artemisia diversifolia]
                                                     [Artemisia gnaphalodes]
                                                     [Artemisia herriotii]
                                                     [Artemisia ludoviciana subsp. sulcata]
                                                     [Artemisia ludoviciana subsp. typica]
                                                     [Artemisia ludoviciana var. gnaphalodes]
                                                     [Artemisia ludoviciana var. ludoviciana]
                                                     [Artemisia pabularis]
                                                     [Artemisia paucicephala]
                                                     [Artemisia pudica]
                                                     [Artemisia rhizomata var. pabularis]
                                                     [Artemisia vulgaris subsp. ludoviciana]
                                                     [Artemisia vulgaris var. ludoviciana]
                                               Artemisia ludoviciana subsp. mexicana
                                                     [Artemisia ludoviciana var. mexicana]
                                                     [Artemisia mexicana]
                                                     [Artemisia neomexicana]
                                                     [Artemisia silvicola]
                                               Artemisia ludoviciana subsp. redolens
                                                     [Artemisia redolens]
                                             Artemisia magellanica
                                             Artemisia martirensis
                                                   [Sphaeromeria martirensis]
                                                   [Tanacetum bajacalifornicum]
                                             Artemisia mauiensis
                                             Artemisia mesatlantica
                                             Artemisia michauxiana
                                                   [Artemisia tenuis]
                                                   [Artemisia vulgaris subsp. michauxiana]
                                             Artemisia nesiotica
                                                   [Artemisia californica var. insularis]
                                             Artemisia norvegica
                                               Artemisia norvegica subsp. saxatilis
                                                     [Artemisia arctica subsp. arctica]
                                                     [Artemisia arctica subsp. saxicola]
                                                     [Artemisia arctica]
                                                     [Artemisia comata]
                                                     [Artemisia norvegica var. piceetorum]
                                                     [Artemisia norvegica var. saxatilis]
                                                     [Artemisia saxicola]
                                             Artemisia nova
                                                   [Artemisia arbuscula subsp. nova]
                                                   [Artemisia arbuscula var. nova]
                                                   [Artemisia nova var. duchesnicola]
                                                   [Artemisia tridentata subsp. nova]
                                               Artemisia nova var. nova
                                             Artemisia nujianensis
                                             Artemisia nuttallii
                                                   [Sphaeromeria argentea]
                                                   [Tanacetum nuttallii]
                                             Artemisia packardiae
                                             Artemisia palmeri
                                                   [Artemisiastrum palmeri]
                                                   [Seriphidium palmeri]
                                             Artemisia papposa
                                             Artemisia pedatifida
                                             Artemisia pedunculosa
                                             Artemisia pontica
                                             Artemisia porteri
                                             Artemisia potens
                                             Artemisia princeps
                                             Artemisia pringlei
                                             Artemisia purshiana
                                             Artemisia pycnocephala
                                                   [Artemisia campestris subsp. pycnocephala]
                                             Artemisia pygmaea
                                             Artemisia repens
                                                   [Artemisia austriaca var. advena]
                                             Artemisia reptans
                                             Artemisia rhodantha
                                             Artemisia rigida
                                             Artemisia robusta
                                             Artemisia rothrockii
                                                   [Artemisia tridentata subsp. rothrockii]
                                                   [Artemisia tridentata var. rothrockii]
                                                   [Seriphidium rothrockii]
                                             Artemisia rupestris
                                             Artemisia ruthiae
                                                   [Sphaeromeria ruthiae]
                                             Artemisia scoparia
                                             Artemisia scopulorum
                                             Artemisia selengensis
                                             Artemisia senjavinensis
                                             Artemisia serrata
                                             Artemisia simplex
                                                   [Sphaeromeria simplex]
                                             Artemisia sinensis
                                             Artemisia spiciformis
                                                   [Artemisia tridentata subsp. spiciformis]
                                             Artemisia spinescens
                                                   [Picrothamnus desertorum]
                                             Artemisia stelleriana
                                             Artemisia suksdorfii
                                                   [Artemisia vulgaris subsp. heterophylla]
                                                   [Artemisia vulgaris var. littoralis]
                                             Artemisia taurica
                                                   [Artemisia graveolens]
                                             Artemisia thuscula
                                             Artemisia tilesii
                                                   [Artemisia hookeriana]
                                                   [Artemisia tilesii subsp. gormanii]
                                                   [Artemisia tilesii subsp. unalaschcensis]
                                                   [Artemisia tilesii var. aleutica]
                                                   [Artemisia tilesii var. unalaschcensis]
                                                   [Artemisia vulgaris subsp. tilesii]
                                               Artemisia tilesii subsp. tilesii
                                             Artemisia tridentata
                                               Artemisia tridentata subsp. parishii
                                                     [Artemisia parishii]
                                                     [Artemisia tridentata var. parishii]
                                               Artemisia tridentata subsp. tridentata
                                                     [Artemisia tridentata subsp. xericensis]
                                                     [Artemisia tridentata var. tridentata]
                                               Artemisia tridentata subsp. vaseyana
                                                     [Artemisia tridentata var. pauciflora]
                                                     [Artemisia tridentata var. vaseyana]
                                                     [Artemisia vaseyana]
                                               Artemisia tridentata subsp. wyomingensis
                                                     [Artemisia tridentata var. wyomingensis]
                                             Artemisia tripartita
                                               Artemisia tripartita subsp. rupicola
                                                     [Artemisia tripartita var. rupicola]
                                               Artemisia tripartita subsp. tripartita
                                               Artemisia tripartita var. tripartita
                                             Artemisia umbelliformis
                                               Artemisia umbelliformis subsp. umbelliformis
                                                     [Artemisia laxa]
                                             Artemisia verlotiorum
                                                   [Artemisia selegensis]
                                             Artemisia vulgaris
                                             Artemisia woodii
                                                   [Artemisia rupestris subsp. woodii]
                                             Artemisia yunnanensis
                                             Artemisia zayuensis
                                     Artemisiastrum
                                     Asanthus
                                             Asanthus solidaginifolius
                                                   [Brickellia solidaginifolia]
                                             Asanthus squamulosus
                                                   [Brickellia squamulosa]
                                             Asanthus thyrsiflorus
                                                   [Brickellia thyrsiflora]
                                     Askellia
                                             Askellia elegans
                                                   [Crepis elegans]
                                             Askellia flexuosa
                                             Askellia pygmaea
                                                   [Askellia nana subsp. ramosa]
                                                   [Askellia pygmaea subsp. ramosa]
                                                   [Crepis nana subsp. clivicola]
                                     Aspilia
                                             Aspilia africana
                                               Aspilia africana subsp. africana
                                                     [Aspilia latifolia]
                                             Aspilia angustifolia
                                             Aspilia bussei
                                             Aspilia eenii
                                             Aspilia kotschyi
                                             Aspilia mossambicensis
                                             Aspilia natalensis
                                             Aspilia pluriseta
                                             Aspilia squarrosa
                                               Aspilia squarrosa var. serratifolia
                                             Aspilia thouarsii
                                     Aster
                                             Aster abchasicus
                                             Aster acadiensis
                                             Aster acaulis
                                             Aster acmellus
                                             Aster acris
                                               Aster acris var. trinervis
                                               Aster acuminatus var. magdalenensis
                                             Aster adfinis
                                               Aster adfinis var. strictus
                                             Aster adnatus
                                               Aster adscendens var. ciliatifolius
                                               Aster adscendens var. denudatus
                                             Aster adustus
                                             Aster aestivus
                                             Aster aethiopicus
                                             Aster ageratoides
                                               Aster ageratoides subsp. alatopetiolata
                                               Aster ageratoides subsp. alatopetiolatus
                                               Aster ageratoides subsp. amplexifolius
                                               Aster ageratoides subsp. lasiocladus
                                               Aster ageratoides subsp. leiophyllus
                                               Aster ageratoides subsp. megalocephalus
                                               Aster ageratoides subsp. ovatus
                                               Aster ageratoides subsp. yakushimensis
                                               Aster ageratoides var. adustus
                                               Aster ageratoides var. amplexifolius
                                               Aster ageratoides var. angustifolius
                                               Aster ageratoides var. firmus
                                               Aster ageratoides var. gerlachii
                                               Aster ageratoides var. grossedentatus
                                               Aster ageratoides var. harai
                                               Aster ageratoides var. heterophyllus
                                               Aster ageratoides var. holophyllus
                                               Aster ageratoides var. hortensis
                                               Aster ageratoides var. humilis
                                               Aster ageratoides var. intermedius
                                               Aster ageratoides var. lasiocladus
                                               Aster ageratoides var. laticorymbus
                                               Aster ageratoides var. leiophyllus
                                               Aster ageratoides var. littoricola
                                               Aster ageratoides var. micranthus
                                               Aster ageratoides var. oophyllus
                                               Aster ageratoides var. ovalifolius
                                               Aster ageratoides var. ovatus
                                               Aster ageratoides var. pendulus
                                               Aster ageratoides var. pilosus
                                               Aster ageratoides var. potaninii
                                               Aster ageratoides var. sawadanus
                                               Aster ageratoides var. scaberulus
                                               Aster ageratoides var. spathulatus
                                               Aster ageratoides var. tenuifolius
                                               Aster ageratoides var. trinervius
                                               Aster ageratoides var. vernalis
                                               Aster ageratoides var. yezoensis
                                             Aster agrostifolius
                                             Aster alatipes
                                             Aster albertii
                                             Aster albescens
                                               Aster albescens var. discolor
                                               Aster albescens var. glabratus
                                               Aster albescens var. glandulosus
                                               Aster albescens var. gracilior
                                               Aster albescens var. levissimus
                                               Aster albescens var. limprichtii
                                               Aster albescens var. megaphyllus
                                               Aster albescens var. niveus
                                               Aster albescens var. pilosus
                                               Aster albescens var. rugosus
                                               Aster albescens var. salignus
                                               Aster alpigenus subsp. haydenii
                                               Aster alpigenus var. haydenii
                                             Aster alpinus
                                               Aster alpinus subsp. serpentimontanus
                                               Aster alpinus subsp. tolmatschevii
                                               Aster alpinus subsp. vierhapperi
                                               Aster alpinus var. diversisquamus
                                               Aster alpinus var. fallax
                                               Aster alpinus var. hispida
                                               Aster alpinus var. serpentimontanus
                                               Aster alpinus var. vierhapperi
                                             Aster altaicus
                                               Aster altaicus var. canescens
                                               Aster altaicus var. hirsutus
                                               Aster altaicus var. millefolius
                                               Aster altaicus var. scaber
                                               Aster altaicus var. taitoensis
                                             Aster alyssoides
                                               Aster alyssoides var. achnolepis
                                             Aster amani
                                             Aster ambiguus
                                             Aster ambiouus
                                             Aster amelloides
                                             Aster amellus
                                               Aster amellus subsp. bessarabicus
                                               Aster amellus subsp. ibericus
                                             Aster americana
                                             Aster amethystinus
                                             Aster amplexicaulis
                                             Aster amplexifolius
                                             Aster amplifolius
                                             Aster amplissimus
                                             Aster amygdalinus
                                             Aster ananthocladus
                                             Aster andersonii
                                             Aster andicola
                                             Aster andinus
                                             Aster andohahelensis
                                             Aster andrewsii
                                             Aster andringitrensis
                                             Aster anethifolius
                                             Aster angelandri
                                             Aster angustifolius
                                             Aster angustissimus
                                             Aster angustus
                                             Aster annectens
                                             Aster anticostensis
                                             Aster apricus
                                             Aster aquifolius
                                             Aster arcticus
                                             Aster ardens
                                             Aster arenarioides
                                             Aster arenarius
                                             Aster arenicola
                                             Aster arenosus
                                             Aster argenteus
                                             Aster argentinensis
                                             Aster argillarius
                                             Aster argillicola
                                             Aster argunensis
                                             Aster argyi
                                             Aster argyropholis
                                               Aster argyropholis var. niveus
                                               Aster argyropholis var. paradoxus
                                             Aster armerioides
                                             Aster arnottii
                                             Aster asa-grayi
                                             Aster asae
                                               Aster ascendens var. fremontii
                                               Aster ascendens var. yosemitanus
                                             Aster asperifolius
                                             Aster asperrimus
                                             Aster asperugineus
                                             Aster asperulus
                                             Aster associatus
                                               Aster associatus var. stenolobus
                                             Aster asterellus
                                             Aster asteroides
                                               Aster asteroides subsp. costei
                                             Aster atrovirens
                                             Aster aurantius
                                             Aster aureus
                                             Aster auriculatus
                                             Aster avitus
                                               Aster azureus var. poaceus
                                               Aster azureus var. scabrior
                                               Aster baccharoides var. kanehirai
                                             Aster bakerianus
                                               Aster bakerianus subsp. albiflorus
                                               Aster bakerianus subsp. angustifolius
                                               Aster bakerianus subsp. intermedius
                                               Aster bakerianus subsp. ovalis
                                               Aster bakerianus subsp. septentrionalis
                                             Aster baldwinii
                                             Aster bangii
                                             Aster barbatus
                                             Aster barbellatus
                                             Aster barcinonensis
                                             Aster baronii
                                             Aster batakensis
                                             Aster batangensis
                                               Aster batangensis var. staticifolius
                                             Aster behrii
                                             Aster behringensis
                                             Aster bellidiastrum
                                             Aster bellidiflorus
                                             Aster bellidioides
                                             Aster bellus
                                             Aster benthamii
                                             Aster bergerianus
                                             Aster berlandieri
                                             Aster bessarabicus
                                             Aster bicolor
                                               Aster bicolor var. lanatus
                                             Aster bietii
                                             Aster biflorus
                                             Aster bifoliatus
                                             Aster bifrons
                                             Aster bimater
                                             Aster bipinnatisectus
                                             Aster blakei
                                             Aster blandus
                                             Aster blepharophyllus
                                             Aster blinii
                                             Aster bodinieri
                                             Aster bodkinii
                                             Aster bojeri
                                             Aster boltoniae
                                             Aster bonariensis
                                             Aster bonplandii
                                             Aster borealis
                                             Aster boweri
                                             Aster bowiei
                                             Aster boykinii
                                             Aster bracei
                                             Aster brachycomoides
                                             Aster brachypholis
                                             Aster brachyphyllus
                                             Aster brachypolis
                                             Aster brachytrichus
                                               Aster brachytrichus var. angustisquamus
                                               Aster brachytrichus var. denticulatus
                                               Aster brachytrichus var. latifolius
                                               Aster brachytrichus var. oreaster
                                               Aster brachytrichus var. tenuiligulatus
                                             Aster brevibracteatus
                                             Aster breviflorus
                                             Aster brevipedunculatus
                                             Aster brevipes
                                             Aster brevis
                                             Aster breviscapus
                                             Aster brittonii
                                             Aster buchubergensis
                                             Aster buckleyi
                                             Aster bulleyanus
                                             Aster burgessii
                                             Aster burkei
                                             Aster butleri
                                             Aster cabulicus
                                             Aster caesius
                                             Aster caespitosus
                                             Aster caffrorum
                                             Aster calderi
                                             Aster calendulaceus
                                             Aster calvatus
                                               Aster campestris subsp. suksdorfii
                                             Aster camporum
                                             Aster camptosorus
                                             Aster canbyi
                                             Aster candelabrum
                                             Aster candollei
                                               Aster canescens var. aristatus
                                               Aster canescens var. latifolius
                                               Aster canescens var. tephrodes
                                               Aster canescens var. viridis
                                               Aster canescens var. viscosus
                                             Aster cantonensis
                                             Aster capensis
                                             Aster capillaceus
                                             Aster capillaris
                                             Aster caricifolius
                                             Aster carmesinus
                                             Aster carnerosanus
                                             Aster carneus
                                               Aster carneus var. ambiguus
                                             Aster carthamoides
                                             Aster castaneus
                                             Aster cavaleriei
                                             Aster chamissonis
                                             Aster chapmanii
                                             Aster chasei
                                             Aster chebataroffii
                                             Aster chelonicus
                                               Aster chilensis subsp. hallii
                                             Aster chinensis
                                             Aster chingshuiensis
                                             Aster chlorolepis
                                             Aster choralis
                                             Aster chrysanthemoides
                                             Aster chryseus
                                             Aster cichoriacea
                                               Aster ciliatus subsp. angustus
                                               Aster ciliatus subsp. laurentianus
                                               Aster ciliolatus var. comatus
                                               Aster ciliolatus var. maccallae
                                               Aster ciliolatus var. wilsonii
                                             Aster ciliomarginatus
                                             Aster cinerarioides
                                             Aster claviger
                                             Aster claytonii
                                               Aster claytonii var. claytonii
                                               Aster claytonii var. crispicans
                                             Aster clivorum
                                             Aster coahuilensis
                                               Aster coerulescens var. angustior
                                               Aster coerulescens var. laetevirens
                                               Aster coerulescens var. subasper
                                               Aster coerulescens var. wootonii
                                             Aster collinsii
                                             Aster coloradoensis
                                             Aster commixtus
                                               Aster commutatus subsp. crassulus
                                               Aster commutatus subsp. polycephalus
                                               Aster commutatus var. crassulus
                                               Aster commutatus var. polycephalus
                                             Aster concinnus
                                               Aster concolor var. devestitus
                                               Aster concolor var. simulatus
                                             Aster conduplicatus
                                             Aster confertiflorus
                                             Aster consanguineus
                                             Aster continuus
                                             Aster cooperi
                                             Aster copelandii
                                             Aster cordalenus
                                               Aster cordifolius subsp. laevigatus
                                               Aster cordifolius subsp. sagittifolius
                                               Aster cordifolius var. alvearius
                                               Aster cordifolius var. furbishiae
                                               Aster cordifolius var. incisus
                                               Aster cordifolius var. laevigatus
                                               Aster cordifolius var. lanceolatus
                                               Aster cordifolius var. moratus
                                               Aster cordifolius var. polycephalus
                                               Aster cordifolius var. racemiflorus
                                               Aster cordifolius var. sagittifolius
                                             Aster cordineri
                                             Aster coriaceifolius
                                             Aster coridifolius
                                             Aster cornifolius
                                             Aster corrigiatus
                                             Aster corymbiformis
                                             Aster corymbosus
                                               Aster corymbosus var. alatus
                                             Aster costei
                                             Aster crassifolius
                                             Aster crassulus
                                             Aster crenatifolius
                                               Aster crenatifolius var. subracemosus
                                             Aster crenifolius
                                               Aster crenifolius var. arcuans
                                               Aster crenifolius var. crenifolius
                                             Aster crispus
                                             Aster crocatus
                                             Aster croceus
                                             Aster crocifolius
                                             Aster culminis
                                             Aster curtus
                                             Aster curvatus
                                             Aster curvescens
                                               Aster curvescens var. curvescens
                                               Aster curvescens var. oviformis
                                               Aster curvescens var. umbelliformis
                                             Aster cusickii
                                               Aster cusickii var. lyallii
                                             Aster cymbalariae
                                             Aster dahuricus
                                             Aster decemflora
                                             Aster decumbens
                                             Aster delavayi
                                             Aster delectabilis
                                             Aster delectus
                                             Aster denudatus
                                               Aster denudatus var. ciliatifolius
                                               Aster denudatus var. denudatus
                                             Aster depauperatus
                                               Aster depauperatus var. parviceps
                                             Aster deserticola
                                             Aster diabolicus
                                             Aster dichotomus
                                             Aster dieteria
                                             Aster diffusus
                                               Aster diffusus var. bifrons
                                               Aster diffusus var. thyrsoideus
                                             Aster dimorphophyllus
                                             Aster diplostephioides
                                               Aster diplostephioides var. delavayi
                                               Aster diplostephioides var. falconeri
                                             Aster discoideus
                                             Aster distichophyllus
                                               Aster divaricatus var. chlorolepis
                                               Aster divaricatus var. graminifolius
                                               Aster divaricatus var. sandwicensis
                                               Aster divaricatus var. tenebrosus
                                             Aster diversifolius
                                             Aster dolichophyllus
                                             Aster dolichopodus
                                             Aster doronicifolius
                                             Aster douglasii
                                             Aster dracunculoides
                                             Aster dracunuloides
                                             Aster drummondii
                                               Aster drummondii subsp. parviceps
                                               Aster drummondii subsp. texanus
                                               Aster drummondii var. parviceps
                                               Aster drummondii var. rhodactis
                                               Aster drummondii var. texanus
                                             Aster dubius
                                               Aster dumosus var. coridifolius
                                               Aster dumosus var. dodgei
                                               Aster dumosus var. gracilipes
                                               Aster dumosus var. pergracilis
                                               Aster dumosus var. strictior
                                               Aster dumosus var. subulifolius
                                             Aster durandii
                                             Aster durbrowii
                                             Aster durus
                                             Aster dysentericus
                                             Aster ecklonis
                                             Aster edwardii
                                             Aster ehrenbergii
                                             Aster elegans
                                             Aster elegantulus
                                             Aster eliasii
                                             Aster elliottii
                                             Aster elodes
                                             Aster eminens
                                               Aster engelmannii var. glaucescens
                                               Aster engelmannii var. ledophyllus
                                               Aster engelmannii var. paucicapitatus
                                             Aster ensifer
                                             Aster eradiatus
                                             Aster erectus
                                             Aster eremophilus
                                             Aster ericifolius
                                               Aster ericifolius var. tenuis
                                               Aster ericoides subsp. pansus
                                               Aster ericoides var. commutatus
                                               Aster ericoides var. multiflorus
                                               Aster ericoides var. pansus
                                               Aster ericoides var. parviceps
                                               Aster ericoides var. pilosus
                                               Aster ericoides var. platyphyllus
                                               Aster ericoides var. pringlei
                                               Aster ericoides var. prostratus
                                               Aster ericoides var. pusillus
                                               Aster ericoides var. strictus
                                               Aster ericoides var. villosus
                                             Aster erigeroides
                                               Aster erigeroides var. schultesii
                                               Aster erigeroides var. trinervius
                                             Aster eriocaulis
                                             Aster eriophorus
                                             Aster eryngiifolius
                                             Aster esquirolii
                                             Aster eulae
                                             Aster excavatus
                                             Aster exiguus
                                               Aster exilis var. australis
                                               Aster exilis var. conspicuus
                                             Aster exscapus
                                             Aster exsul
                                               Aster falcatus subsp. commutatus
                                               Aster falcatus var. crassulus
                                             Aster falcidens
                                             Aster falcifolius
                                             Aster falconeri
                                               Aster falconeri subsp. nepalensis
                                             Aster fallax
                                             Aster fanjingshanicus
                                             Aster farreri
                                             Aster fastigiatus
                                             Aster fauriei
                                             Aster faxonii
                                             Aster ferox
                                             Aster ferrugineus
                                             Aster filifolius
                                             Aster filipes
                                             Aster fimbriatus
                                               Aster finkii var. moratus
                                             Aster firmus
                                             Aster fistulosus
                                             Aster flabellum
                                             Aster flaccidus
                                               Aster flaccidus subsp. glandulosus
                                               Aster flaccidus subsp. tsarungensis
                                               Aster flaccidus var. atropurpureus
                                               Aster flaccidus var. glandulosus
                                               Aster flaccidus var. glandulous
                                             Aster flavovirens
                                             Aster flexilis
                                             Aster flexuosus
                                             Aster fluvialis
                                               Aster foliaceus subsp. frondeus
                                               Aster foliaceus var. arcuans
                                               Aster foliaceus var. burkei
                                               Aster foliaceus var. crenifolius
                                               Aster foliaceus var. cusickii
                                               Aster foliaceus var. frondeus
                                               Aster foliaceus var. subgeminatus
                                               Aster foliaceus var. sublinearis
                                               Aster foliaceus var. subpetiolatus
                                             Aster foliolosus
                                             Aster fontinalis
                                             Aster fordii
                                             Aster formosanus
                                             Aster forrestii
                                               Aster fragilis var. brachypholis
                                               Aster fragilis var. subdumosus
                                             Aster franchetianus
                                             Aster franklinianus
                                             Aster fremontii
                                               Aster fremontii var. parishii
                                             Aster frondeus
                                             Aster frutescens
                                             Aster fulcratus
                                             Aster fulgidulus
                                             Aster furcatus
                                             Aster fusanensis
                                             Aster fuscescens
                                               Aster fuscescens var. oblongifolius
                                               Aster fuscescens var. scaberoides
                                             Aster ganlun
                                             Aster gaspensis
                                             Aster gattingeri
                                             Aster gayanus
                                             Aster gentryi
                                             Aster georgianus
                                             Aster gerlachii
                                             Aster geyeri
                                             Aster giganteus
                                             Aster gilliesii
                                             Aster giraldii
                                             Aster glabrifolius
                                             Aster glabriusculus
                                               Aster glabriusculus var. parryi
                                             Aster glandulosus
                                             Aster glarearum
                                             Aster glaucescens
                                               Aster glaucodes subsp. glaucodes
                                               Aster glaucodes subsp. pulcher
                                               Aster glaucodes var. formosus
                                               Aster glaucodes var. pulcher
                                             Aster glaucophyllus
                                             Aster glaucus
                                               Aster glaucus var. wasatchensis
                                             Aster glossophyllus
                                             Aster gmelinii
                                             Aster gnaphalioides
                                             Aster gooddingii
                                             Aster gormanii
                                             Aster gouldii
                                             Aster gracilescens
                                             Aster gracilicaulis
                                             Aster gracilipes
                                             Aster gracillimus
                                             Aster graminifolius
                                             Aster grandiflorus
                                             Aster granulosus
                                             Aster grayanus
                                             Aster grayi
                                             Aster gremialis
                                             Aster grisebachii
                                             Aster griseolus
                                             Aster griseus
                                             Aster gymnocephalus
                                             Aster gypsophilus
                                             Aster halophilus
                                             Aster handelii
                                             Aster haplopappus
                                             Aster harbourii
                                             Aster harrowianus
                                               Aster harrowianus var. glabratus
                                               Aster harrowianus var. pycnophyllus
                                             Aster hartwegii
                                             Aster hauptii
                                             Aster haydenii
                                             Aster hebecladus
                                             Aster hedinii
                                             Aster heleius
                                             Aster helenium
                                             Aster heliopsis
                                             Aster hemisphericus
                                             Aster henryi
                                             Aster hersileoides
                                             Aster herveyi
                                               Aster hesperius var. gaspensis
                                               Aster hesperius var. laetevirens
                                               Aster hesperius var. wootonii
                                             Aster heterolepis
                                             Aster heterophyllus
                                             Aster heterotrichus
                                             Aster himalaicus
                                             Aster hintonii
                                             Aster hirsuticaulis
                                             Aster hirtellus
                                             Aster hirtus
                                               Aster hispidus var. decipiens
                                               Aster hispidus var. heterochaeta
                                               Aster hispidus var. mesochaeta
                                               Aster hispidus var. microphyllus
                                             Aster hololachnus
                                             Aster homochlamydeus
                                             Aster horizontalis
                                             Aster horridifolius
                                             Aster horridus
                                             Aster houghtonii
                                             Aster howardii
                                             Aster howellii
                                             Aster hualiensis
                                             Aster humilis
                                             Aster humistratus
                                             Aster hunanensis
                                             Aster hydrophilus
                                             Aster hypoleucus
                                             Aster hyssopifolius
                                             Aster ibericus
                                             Aster ignoratus
                                             Aster incanopilosus
                                             Aster incanus
                                             Aster incertus
                                             Aster incisus
                                               Aster incisus var. australis
                                               Aster incisus var. macrodon
                                             Aster indamellus
                                             Aster indicus
                                                   [Kalimeris indica]
                                               Aster indicus var. collinus
                                               Aster indicus var. lautureanus
                                               Aster indicus var. stenolepis
                                             Aster inornatus
                                             Aster interior
                                             Aster intermedius
                                             Aster intricatus
                                             Aster inuloides
                                             Aster invenustus
                                             Aster ionoglossus
                                             Aster iostemma
                                             Aster ircutianus
                                             Aster itsunboshi
                                             Aster jacksonii
                                             Aster jacobaeus
                                             Aster jalapensis
                                             Aster jamaicensis
                                             Aster jamesii
                                             Aster japonicus
                                             Aster jeffreyanus
                                             Aster jemensis
                                             Aster jessicae
                                             Aster jishouensis
                                             Aster johannensis
                                               Aster johannensis var. villicaulis
                                             Aster jonesiae
                                             Aster juchaihu
                                             Aster junceus
                                             Aster juniperinus
                                             Aster kansuensis
                                             Aster kantoensis
                                             Aster kentuckiensis
                                             Aster kingii
                                               Aster kingii var. barnebyana
                                             Aster kodzumanus
                                             Aster komarovii
                                             Aster komonoensis
                                             Aster kootenayi
                                             Aster koraginensis
                                             Aster kraussii
                                             Aster labrangensis
                                             Aster lacunarum
                                             Aster laetevirens
                                             Aster laeviformis
                                             Aster laevigatus
                                             Aster laevis
                                               Aster laevis var. laevis
                                               Aster laevis var. concinnus
                                               Aster laevis var. guadalupensis
                                               Aster laevis var. laevigatus
                                               Aster laevis var. latifolius
                                               Aster laevis var. panduratus
                                               Aster laevis var. purpuratus
                                               Aster laevis var. simplex
                                               Aster laevis var. strictiflora
                                               Aster laevis var. thyrsoideus
                                             Aster laka
                                             Aster lamarckianus
                                             Aster lanatus
                                             Aster lanceolatus
                                               Aster lanceolatus var. lanceolatus
                                               Aster lanceolatus subsp. interior
                                               Aster lanceolatus subsp. simplex
                                               Aster lanceolatus var. hirsuticaulis
                                               Aster lanceolatus var. interior
                                               Aster lanceolatus var. latifolius
                                               Aster lanceolatus var. monocephalus
                                               Aster lanceolatus var. simplex
                                             Aster lancifolius
                                             Aster langaoensis
                                             Aster lanuginosus
                                             Aster lasiocladus
                                             Aster latahensis
                                               Aster lateriflorus var. angustifolius
                                               Aster lateriflorus var. bifrons
                                               Aster lateriflorus var. flagellaris
                                               Aster lateriflorus var. glomerellus
                                               Aster lateriflorus var. grandis
                                               Aster lateriflorus var. hirsuticaulis
                                               Aster lateriflorus var. horizontalis
                                               Aster lateriflorus var. indutus
                                               Aster lateriflorus var. spatelliformis
                                               Aster lateriflorus var. tenuipes
                                               Aster lateriflorus var. thyrsoideus
                                             Aster latibracteatus
                                             Aster laticorymbus
                                             Aster latisquamatus
                                             Aster latissimifolius
                                               Aster latissimifolius var. serotinus
                                             Aster laurentianus
                                               Aster laurentianus var. contiguus
                                               Aster laurentianus var. laurentianus
                                               Aster laurentianus var. magdalenensis
                                             Aster lautureanus
                                               Aster lautureanus var. holophylla
                                               Aster lautureanus var. mangtaoensis
                                               Aster lautureanus var. mongolicus
                                             Aster lautus
                                               Aster lautus var. prionoides
                                             Aster lavandulaceus
                                             Aster lavandulifolius
                                             Aster laxifolius
                                               Aster laxifolius var. borealis
                                               Aster laxifolius var. laetiflorus
                                             Aster laxus
                                             Aster leavenworthii
                                             Aster leiocarpus
                                             Aster leiodes
                                             Aster leiophyllus
                                               Aster leiophyllus var. incisus
                                               Aster leiophyllus var. intermedius
                                               Aster leiophyllus var. lanceolatus
                                             Aster lemmonii
                                             Aster leonis
                                             Aster lepidopodus
                                             Aster lepidus
                                             Aster leucelene
                                             Aster leucopsis
                                             Aster likiangensis
                                             Aster limitaneus
                                             Aster limnophilus
                                             Aster limprichtii
                                               Aster limprichtii var. gracilior
                                               Aster linariifolius var. victorinii
                                             Aster lindenii
                                             Aster lindheimeranus
                                               Aster lindleyanus var. comatus
                                             Aster linearis
                                             Aster linguiformis
                                             Aster lingulatus
                                             Aster linifolius
                                             Aster linosyris
                                             Aster linquiformis
                                             Aster lipskii
                                             Aster lithospermifolius
                                             Aster lixianensis
                                             Aster lofouensis
                                             Aster lonchophyllus
                                               Aster longifolius var. villicaulis
                                             Aster longipetiolatus
                                             Aster longulus
                                             Aster loriformis
                                               Aster lowrieanus var. incisus
                                               Aster lowrieanus var. lanceolatus
                                               Aster lowrieanus var. lowrieanus
                                             Aster lucayanus
                                             Aster lucidulus
                                             Aster lushiensis
                                             Aster lutescens
                                             Aster maackii
                                             Aster maccallae
                                             Aster macilentus
                                             Aster macounii
                                               Aster macrocephalus var. pseudognaphalioides
                                             Aster macrodon
                                             Aster macrolophus
                                             Aster macronema
                                               Aster macrophyllus var. apricensis
                                               Aster macrophyllus var. excelsior
                                               Aster macrophyllus var. ianthinus
                                               Aster macrophyllus var. pinguifolius
                                               Aster macrophyllus var. schreberi
                                               Aster macrophyllus var. sejunctus
                                               Aster macrophyllus var. velutinus
                                             Aster madagascariensis
                                             Aster madrensis
                                             Aster mairei
                                             Aster major
                                             Aster mandrarensis
                                             Aster mangshanensis
                                             Aster mangtaoensis
                                             Aster marchandii
                                             Aster marginalis
                                             Aster marginatus
                                               Aster marginatus var. acaulis
                                               Aster marginatus var. argenteus
                                               Aster marginatus var. tomentosus
                                             Aster marshallii
                                             Aster maximus
                                             Aster mearnsii
                                             Aster megalanthus
                                             Aster megapotamicus
                                             Aster mekongensis
                                             Aster melenii
                                             Aster menelii
                                             Aster menthodorus
                                             Aster menziesii
                                             Aster mespilifolius
                                             Aster methodorus
                                             Aster mexicanus
                                             Aster meyendorffii
                                             Aster micranthus
                                               Aster micranthus var. achilleiformis
                                             Aster microcephalus
                                             Aster microlonchus
                                             Aster milanjiensis
                                             Aster militaris
                                             Aster millefolius
                                             Aster minor
                                             Aster miquelianus
                                             Aster mirabilis
                                             Aster misellus
                                             Aster miser
                                               Aster miser var. glomerellus
                                             Aster miyabeanus
                                               Aster modestus var. major
                                             Aster moelleri
                                             Aster mohavensis
                                             Aster mohrii
                                             Aster mollis
                                             Aster molliusculus
                                               Aster molliusculus var. minor
                                             Aster mongolicus
                                             Aster montanus
                                               Aster montanus var. arcticus
                                               Aster montanus var. giganteus
                                             Aster montevidensis
                                             Aster monticola
                                               Aster moranensis var. turneri
                                             Aster morrisonensis
                                             Aster motuoensis
                                             Aster moupinensis
                                             Aster mucronatus
                                             Aster muehlenbergianus
                                             Aster muirii
                                             Aster multicaulis
                                               Aster multiflorus var. caeruleus
                                               Aster multiflorus var. ciliatus
                                               Aster multiflorus var. columbianus
                                               Aster multiflorus var. exiguus
                                               Aster multiflorus var. incanopilosus
                                               Aster multiflorus var. normalis
                                               Aster multiflorus var. pansus
                                               Aster multiflorus var. prostratus
                                               Aster multiflorus var. stricticaulis
                                             Aster multiformis
                                             Aster muricatus
                                             Aster mutisianus
                                             Aster nahanniensis
                                             Aster nakai
                                             Aster nanus
                                             Aster nardophyllum
                                             Aster nebraskensis
                                             Aster nelsonii
                                             Aster nemoralis
                                               Aster nemoralis var. blakei
                                               Aster nemoralis var. major
                                             Aster neobiennis
                                             Aster neoelegans
                                             Aster neolanuginosus
                                             Aster neomexicanus
                                             Aster nigrescens
                                             Aster nigromontanus
                                             Aster nitidus
                                             Aster notosericeus
                                             Aster novae-angliae
                                               Aster novae-angliae var. monocephala
                                               Aster novae-angliae var. roseus
                                               Aster novi-belgii subsp. johannensis
                                               Aster novi-belgii subsp. tardiflorus
                                               Aster novi-belgii var. crenifolius
                                               Aster novi-belgii var. elodes
                                               Aster novi-belgii var. johannensis
                                               Aster novi-belgii var. laevigatus
                                               Aster novi-belgii var. litoreus
                                               Aster novi-belgii var. rosaceus
                                               Aster novi-belgii var. tardiflorus
                                               Aster novi-belgii var. villicaulis
                                             Aster nudicaulis
                                             Aster nuttallii
                                               Aster nuttallii var. fendleri
                                               Aster oblongifolius var. angustatus
                                               Aster oblongifolius var. rigidulus
                                             Aster obovatus
                                               Aster occidentalis var. fremontii
                                               Aster occidentalis var. scabriusculus
                                             Aster ochraceus
                                             Aster ochroleucus
                                             Aster odorus
                                             Aster oharae
                                             Aster ohioensis
                                             Aster okanoganus
                                             Aster oldhamii
                                             Aster oligodontus
                                             Aster olivaceus
                                             Aster omerophyllus
                                               Aster ontarionis var. glabratus
                                               Aster ontarionis var. ontarionis
                                               Aster oolentangiensis var. laevicaulis
                                             Aster oreophilus
                                             Aster orthophyllus
                                             Aster osterhoutii
                                             Aster oticus
                                             Aster ovalifolius
                                             Aster ovatus
                                             Aster oxylepis
                                             Aster palmeri
                                               Aster paludosus subsp. hemisphericus
                                               Aster paludosus var. hemisphericus
                                             Aster palustris
                                             Aster panduratus
                                               Aster paniculatus var. cinerascens
                                               Aster paniculatus var. lanatus
                                               Aster paniculatus var. polychrous
                                               Aster paniculatus var. simplex
                                             Aster pannonicus
                                             Aster pansus
                                             Aster pantotrichus
                                               Aster pantotrichus var. pantotrichus
                                               Aster pantotrichus var. thyrsoideus
                                             Aster papposissimus
                                             Aster parryi
                                             Aster parviceps
                                               Aster parviceps var. pusillus
                                             Aster parviflorus
                                             Aster patagonicus
                                               Aster patens var. floridanus
                                               Aster patens var. georgianus
                                               Aster patens var. gracilis
                                               Aster patens var. patentissimus
                                               Aster patens var. phlogifolius
                                               Aster patens var. tenuicaulis
                                             Aster patentissimus
                                             Aster pattersonii
                                             Aster paucicapitatus
                                               Aster pauciflorus var. gracilis
                                             Aster pectinatus
                                             Aster pedionomus
                                             Aster pekinensis
                                                   [Kalimeris integrifolia]
                                             Aster pellitus
                                             Aster pendulus
                                             Aster peregrinus
                                             Aster perezii
                                             Aster peruvianus
                                             Aster peteroanus
                                             Aster petiolaris
                                             Aster phylicoides
                                             Aster phyllocephalus
                                             Aster phyllodes
                                             Aster phyllolepis
                                             Aster piccolii
                                             Aster pickeringii
                                             Aster pickettiana
                                               Aster pilosus subsp. parviceps
                                               Aster pilosus var. platyphyllus
                                               Aster pilosus var. priceae
                                               Aster pilosus var. pringlei
                                               Aster pilosus var. pusillus
                                             Aster pinifolius
                                             Aster pinnatifidus
                                             Aster pinnatus
                                             Aster pityphyllus
                                             Aster platylepis
                                             Aster plumarius
                                             Aster plumosus
                                             Aster poaceus
                                             Aster pohlii
                                             Aster polifolius
                                             Aster poliothamnus
                                             Aster polius
                                             Aster polycephalus
                                             Aster polyphyllus
                                             Aster poncinsii
                                             Aster pradensis
                                               Aster praealtus var. angustior
                                               Aster praealtus var. coerulescens
                                               Aster praealtus var. imbricatior
                                               Aster praealtus var. nebraskensis
                                               Aster praealtus var. subasper
                                               Aster praealtus var. texicola
                                             Aster prainii
                                             Aster prascottii
                                             Aster pratincola
                                               Aster prenanthoides var. longifolius
                                             Aster priceae
                                             Aster pringlei
                                             Aster procerus
                                             Aster procumbens
                                             Aster prostratus
                                             Aster proteus
                                             Aster proximus
                                             Aster prunelloides
                                             Aster pseudamellus
                                             Aster pseudoglehni
                                             Aster pseudosimplex
                                                   [Aster simplex]
                                               Aster ptarmicoides var. lutescens
                                             Aster pubens
                                             Aster pubentior
                                             Aster pulchellus
                                             Aster pulicaria
                                             Aster pulverulentus
                                             Aster pumilus
                                             Aster punctatus
                                               Aster puniceus subsp. elliottii
                                               Aster puniceus subsp. firmus
                                               Aster puniceus var. calderi
                                               Aster puniceus var. compactus
                                               Aster puniceus var. demissus
                                               Aster puniceus var. elliottii
                                               Aster puniceus var. firmus
                                               Aster puniceus var. laevicaulis
                                               Aster puniceus var. lucidulus
                                               Aster puniceus var. lucidus
                                               Aster puniceus var. oligocephalus
                                               Aster puniceus var. perlongus
                                               Aster puniceus var. scabricaulis
                                             Aster purdomii
                                             Aster purpurascens
                                             Aster purpuratus
                                             Aster pycnophyllus
                                             Aster pygmaeus
                                             Aster pyropappus
                                             Aster pyrrocoma
                                             Aster quelpaertensis
                                             Aster quiescens
                                             Aster quinquenervius
                                             Aster quitensis
                                             Aster racemosus
                                             Aster radula
                                               Aster radula var. biflorus
                                             Aster rafinesquii
                                             Aster ramosissimus
                                             Aster ramsbottomii
                                             Aster ramulosus
                                               Aster ramulosus var. incanopilosus
                                             Aster recurvatus
                                             Aster regnellii
                                             Aster repens
                                             Aster reptans
                                             Aster resinotus
                                             Aster reticulatus
                                             Aster retroflexus
                                             Aster retusus
                                             Aster richardsonii
                                               Aster richardsonii var. giganteus
                                             Aster riciniatus
                                             Aster riddellii
                                             Aster rigidus
                                             Aster rivularis
                                             Aster robynsianus
                                             Aster rockianus
                                             Aster rolandii
                                             Aster roscidus
                                             Aster roseolus
                                             Aster roseus
                                             Aster rothrockii
                                             Aster roylei
                                             Aster rufopappus
                                             Aster rugosus
                                             Aster rugulosus
                                             Aster saboureaui
                                             Aster sachalinensis
                                               Aster sagittifolius var. dissitiflorus
                                               Aster sagittifolius var. drummondii
                                               Aster sagittifolius var. urophyllus
                                             Aster salicifolius
                                               Aster salicifolius var. coerulescens
                                               Aster salicifolius var. subasper
                                             Aster salicinus
                                             Aster salsuginosus
                                               Aster salsuginosus var. angustifolius
                                               Aster salsuginosus var. scaposus
                                             Aster salwinensis
                                             Aster sampsonii
                                               Aster sampsonii var. isochaetus
                                             Aster sandwicensis
                                             Aster satureiaefolius
                                             Aster saxicastelli
                                             Aster sayianus
                                             Aster scaber
                                             Aster scaberulus
                                             Aster scabricaulis
                                             Aster scabridus
                                               Aster scabridus var. brevifolius
                                             Aster scaposus
                                             Aster schaffneri
                                             Aster scherriffianus
                                             Aster schumannii
                                             Aster scoparius
                                             Aster scribneri
                                               Aster sedifolius subsp. amani
                                             Aster sejaensis
                                             Aster semiamplexicaulis
                                             Aster sempervirens
                                             Aster senebierifolius
                                             Aster senecioides
                                               Aster senecioides var. latisquamus
                                             Aster serenoi
                                               Aster sericeus var. microphyllus
                                             Aster sericocarpoides
                                             Aster serpentimontanus
                                             Aster serrulatus
                                             Aster setchuenensis
                                             Aster setiger
                                               Aster shastensis var. eradiatus
                                               Aster shastensis var. glossophyllus
                                               Aster shastensis var. latifolius
                                             Aster shennongjiaensis
                                             Aster sherriffianus
                                             Aster shimadai
                                               Aster shortii subsp. azureus
                                               Aster shortii var. camptosorus
                                               Aster shortii var. shortii
                                               Aster sibiricus subsp. pygmaeus
                                               Aster sibiricus subsp. richardsonii
                                               Aster sibiricus subsp. subintegerrimus
                                               Aster sibiricus var. giganteus
                                               Aster sibiricus var. pygmaeus
                                             Aster sikkimensis
                                             Aster sikuensis
                                             Aster silenifolius
                                               Aster simplex var. estuarinus
                                               Aster simplex var. interior
                                               Aster simplex var. ramosissimus
                                             Aster simulatus
                                             Aster sinianus
                                             Aster sinoangustifolius
                                             Aster smallii
                                             Aster smithianus
                                               Aster smithianus var. pilosior
                                             Aster sodiroi
                                               Aster sodiroi var. mutisianus
                                               Aster sodiroi var. peruanus
                                             Aster sohayakiensis
                                             Aster solidagineus
                                             Aster sonomensis
                                             Aster sonorae
                                             Aster sonorensis
                                             Aster souliei
                                               Aster souliei var. limitaneus
                                             Aster spartioides
                                             Aster spatelliformis
                                             Aster spathulifolius
                                                   [Erigeron spathulifolius]
                                             Aster spatioides
                                             Aster speciosus
                                             Aster spectabilis
                                               Aster spectabilis var. cinerascens
                                               Aster spectabilis var. suffultus
                                             Aster sphaerotus
                                               Aster spinosus var. jaliscensis
                                               Aster spinosus var. spinosissimus
                                             Aster spinulosus
                                             Aster spithamaeus
                                             Aster spithameus
                                               Aster squamatus var. graminifolius
                                             Aster squarrosus
                                             Aster standleyi
                                             Aster staticefolius
                                             Aster steeleorum
                                             Aster stellulatus
                                             Aster stenactis
                                             Aster stenomeres
                                             Aster stilettiformis
                                             Aster stolonifer
                                             Aster stracheyi
                                             Aster striatus
                                             Aster strictus
                                             Aster stuebelii
                                             Aster subasper
                                             Aster subcaerulea
                                             Aster subcaerulens
                                             Aster subcaudata
                                             Aster subgeminatus
                                             Aster subgriseus
                                             Aster subintegerrimus
                                             Aster sublitoralis
                                             Aster subracemosus
                                             Aster subsalignus
                                             Aster subsessilis
                                               Aster subspicatus var. apricus
                                               Aster subspicatus var. grayi
                                             Aster subtropicus
                                               Aster subulatus var. australis
                                               Aster subulatus var. bahamensis
                                               Aster subulatus var. euroauster
                                               Aster subulatus var. obtusifolius
                                               Aster subulatus var. sandwicensis
                                             Aster sulznerae
                                               Aster surculosus var. gracilis
                                             Aster sylvestris
                                             Aster tagasagomontanus
                                             Aster tagetinus
                                             Aster taiwanensis
                                             Aster takasagomontanus
                                             Aster taliangshanensis
                                               Aster tanacetifolius var. pygmaeus
                                             Aster tansaniensis
                                             Aster taoyuenensis
                                             Aster tarbagatensis
                                               Aster tardiflorus var. vestitus
                                             Aster tataricus
                                               Aster tataricus var. fauriei
                                               Aster tataricus var. minor
                                               Aster tataricus var. nakaii
                                               Aster tataricus var. robustus
                                               Aster tataricus var. vernalis
                                             Aster taxifolius
                                             Aster techinensis
                                             Aster tenebrosus
                                             Aster tenuicaulis
                                               Aster tenuifolius var. aphyllus
                                               Aster tenuifolius var. bellidiflorus
                                               Aster tenuifolius var. ramosissimus
                                             Aster tenuipes
                                             Aster tenuissimus
                                             Aster tephrodes
                                             Aster teretifolia
                                             Aster terrae-novae
                                             Aster texanus
                                               Aster texanus var. parviceps
                                             Aster thermalis
                                             Aster thomsonii
                                             Aster thyrsoideus
                                             Aster tibeticus
                                             Aster tolmatschevii
                                             Aster tolmieanus
                                             Aster tongolensis
                                               Aster tongolensis subsp. forrestii
                                             Aster torreyi
                                               Aster tortifolius var. funereus
                                             Aster townshendii
                                             Aster trachyticus
                                               Aster tradescantii var. thyrsoideus
                                             Aster triangularis
                                             Aster trianthus
                                             Aster tricapitatus
                                             Aster tricephalus
                                             Aster trichanthus
                                             Aster trichoneurus
                                             Aster tricolor
                                             Aster trigonicus
                                             Aster trilineatus
                                             Aster trinervifolia
                                             Aster trinervis
                                             Aster trinervius
                                               Aster trinervius subsp. ageratoides
                                               Aster trinervius var. adustus
                                               Aster trinervius var. firmus
                                               Aster trinervius var. grossedentatus
                                               Aster trinervius var. harai
                                               Aster trinervius var. hayatae
                                               Aster trinervius var. lasiocladus
                                               Aster trinervius var. longifolius
                                               Aster trinervius var. ovatus
                                               Aster trinervius var. pilosus
                                               Aster trinervius var. potaninii
                                               Aster trinervius var. rosthornii
                                               Aster trinervius var. scandens
                                               Aster trinervius var. wattii
                                             Aster tripolium
                                               Aster tripolium var. discoideus
                                             Aster truellius
                                             Aster tsarungensis
                                             Aster tuganianus
                                             Aster turbinatus
                                               Aster turbinatus var. chekiangensis
                                             Aster turbinellus
                                             Aster tweedyi
                                             Aster uliginosus
                                             Aster ulmifolius
                                             Aster umbachii
                                               Aster umbellatus subsp. pubens
                                               Aster umbellatus var. brevisquamus
                                               Aster umbellatus var. humilis
                                               Aster umbellatus var. latifolius
                                             Aster umbraticus
                                             Aster unalaschensis
                                               Aster unalaschensis var. major
                                             Aster underwoodii
                                               Aster undulatus var. asperulus
                                               Aster undulatus var. diversifolius
                                               Aster undulatus var. loriformis
                                             Aster uniligulata
                                             Aster urophyllus
                                             Aster ursinus
                                             Aster vaccinus
                                               Aster vahlii var. australis
                                               Aster vahlii var. latifolius
                                               Aster vahlii var. robusta
                                               Aster vahlii var. tenuifolius
                                             Aster vallicola
                                             Aster vaniotii
                                             Aster variabilis
                                             Aster vaurealis
                                             Aster veitchianus
                                             Aster vellereus
                                             Aster velutinosus
                                             Aster venetus
                                             Aster venustus
                                             Aster vernalis
                                             Aster vernus
                                             Aster verticillatus
                                                   [Rhynchospermum verticillatum]
                                             Aster verutifolius
                                             Aster vestitus
                                             Aster vilmorinii
                                               Aster vimineus var. foliolosus
                                               Aster vimineus var. saxatilis
                                               Aster vimineus var. subdumosus
                                             Aster violaceus
                                             Aster violaris
                                             Aster virgatus
                                             Aster virginiensis
                                             Aster virgularis
                                             Aster vittatus
                                             Aster vvedenskyi
                                             Aster walteri
                                             Aster warmingii
                                               Aster wasatchensis var. pulcher
                                               Aster wasatchensis var. wasatchensis
                                             Aster watsonii
                                             Aster wattii
                                             Aster welshii
                                             Aster williamsii
                                             Aster willkommii
                                             Aster wilsonii
                                             Aster woodhousei
                                             Aster wootonii
                                             Aster wrightii
                                             Aster xylorhiza
                                             Aster yamatsutanus
                                             Aster yangtzensis
                                             Aster yuanqunensis
                                             Aster yukonensis
                                             Aster yunnanensis
                                               Aster yunnanensis var. angustior
                                               Aster yunnanensis var. labrangensis
                                             Aster zayuensis
                                             Aster zosterifolius
                                     Asteriscodes
                                             Asteriscodes chinensis
                                     Asteriscus
                                             Asteriscus aquaticus
                                             Asteriscus graveolens
                                               Asteriscus graveolens subsp. odorus
                                                     [Asteriscus odorus]
                                               Asteriscus graveolens subsp. stenophyllus
                                             Asteriscus imbricatus
                                             Asteriscus pinifolius
                                             Asteriscus sericeus
                                                   [Odontospermum sericeum]
                                               Asteriscus aquaticus subsp. pygmaeus
                              Asteroideae
                                     Achyranthemum
                                             Achyranthemum argenteum
                                             Achyranthemum paniculatum
                                             Achyranthemum striatum
                                     Allagopappus
                                             Allagopappus canariensis
                                                   [Allagopappus dichotomus]
                                     Amellus
                                             Amellus alternifolius
                                               Amellus alternifolius subsp. alternifolius
                                             Amellus epaleaceus
                                             Amellus lychnitis
                                             Amellus strigosus
                                               Amellus strigosus subsp. strigosus
                                             Amellus tridactylus
                                               Amellus tridactylus subsp. arenarius
                                     Amphiglossa
                                             Amphiglossa tecta
                                     Anaxeton
                                             Anaxeton asperum
                                             Anaxeton virgatum
                                     Anderbergia
                                             Anderbergia epaleata
                                     Andicolea
                                             Andicolea graveolens
                                                   [Loricaria graveolens]
                                     Anisopappus
                                             Anisopappus africanus
                                                   [Anisopappus chinensis var. dentatus]
                                             Anisopappus chinensis
                                             Anisopappus pinnatifidus
                                             Anisopappus schinzii
                                             Anisopappus sylvaticus
                                     Anvillea
                                             Anvillea garcinii
                                               Anvillea garcinii subsp. radiata
                                                     [Anvillea radiata]
                                     Athroisma
                                             Athroisma gracile
                                               Athroisma gracile subsp. gracile
                                               Athroisma gracile subsp. psyllioides
                                                     [Athroisma psyllioides]
                                             Athroisma hastifolium
                                             Athroisma stuhlmannii
                                     Bellida
                                             Bellida graminea
                                     Brocchia
                                             Brocchia cinerea
                                     Callilepis
                                             Callilepis laureola
                                             Callilepis leptophylla
                                     Calostephane
                                             Calostephane divaricata
                                     Centropappus
                                             Centropappus brunonis
                                                   [Senecio centropappus]
                                     Ceratogyne
                                             Ceratogyne obionoides
                                     Chlamydophora
                                     Cladanthus
                                             Cladanthus arabicus
                                             Cladanthus eriolepis
                                             Cladanthus mixtus
                                                   [Chamaemelum mixtum]
                                             Cladanthus scariosus
                                                   [Chamaemelum scariosum]
                                     Clappia
                                             Clappia suaedifolia
                                                   [Haplopappus nealleyi]
                                     Columbiadoria
                                             Columbiadoria hallii
                                                   [Haplopappus hallii]
                                     Commidendrum
                                             Commidendrum robustum
                                     Cuchumatanea
                                             Cuchumatanea steyermarkii
                                     Daveaua
                                             Daveaua anthemoides
                                     Delwiensia
                                             Delwiensia pattersonii
                                                   [Artemisia pattersonii]
                                     Dendrosenecio
                                             Dendrosenecio brassica
                                                   [Senecio brassica]
                                             Dendrosenecio keniensis
                                             Dendrosenecio keniodendron
                                                   [Senecio keniodendron]
                                     Denekia
                                             Denekia capensis
                                     Dicerothamnus
                                             Dicerothamnus rhinocerotis
                                                   [Elytropappus rhinocerotis]
                                     Disparago
                                             Disparago ericoides
                                             Disparago laxifolia
                                     Doellia
                                             Doellia cafra
                                                   [Blumea cafra]
                                     Dolichothrix
                                     Edmondia
                                             Edmondia pinifolia
                                             Edmondia sesamoides
                                                   [Helichrysum sesamoides]
                                     Elaphandra
                                             Elaphandra bicornis
                                     Elytropappus
                                     Erymophyllum
                                             Erymophyllum ramosum
                                               Erymophyllum ramosum subsp. ramosum
                                             Erymophyllum tenellum
                                     Eumorphia
                                             Eumorphia dregeana
                                             Eumorphia sericea
                                               Eumorphia sericea subsp. sericea
                                     Feldstonia
                                             Feldstonia nitens
                                     Fitchia
                                             Fitchia cordata
                                     Foveolina
                                             Foveolina dichotoma
                                     Galgera
                                             Galgera decurrens
                                                   [Laggera decurrens]
                                     Galinsogeopsis
                                             Galinsogeopsis lineariloba
                                                   [Perityle lineariloba]
                                             Galinsogeopsis vigilans
                                                   [Perityle vigilans]
                                     Geigeria
                                             Geigeria acaulis
                                             Geigeria africana
                                             Geigeria alata
                                             Geigeria aspera
                                             Geigeria brevifolia
                                             Geigeria burkei
                                               Geigeria burkei subsp. diffusa
                                               Geigeria burkei var. burkei
                                               Geigeria burkei var. hirtella
                                             Geigeria obtusifolia
                                             Geigeria ornativa
                                             Geigeria pectidea
                                             Geigeria plumosa
                                             Geigeria schinzii
                                             Geigeria vigintisquamea
                                     Gibbaria
                                             Gibbaria glabra
                                                   [Osteospermum glabrum]
                                     Gilberta
                                             Gilberta tenuifolia
                                     Gilruthia
                                             Gilruthia osbornii
                                     Glossopappus
                                             Glossopappus macrotus
                                     Gnephosis
                                             Gnephosis arachnoidea
                                                   [Gnephosis cyathopappa]
                                             Gnephosis brevifolia
                                             Gnephosis tenuissima
                                     Greenmaniella
                                             Greenmaniella resinosa
                                                   [Zaluzania resinosa]
                                     Grisebachianthus
                                             Grisebachianthus lantanifolius
                                             Grisebachianthus plucheoides
                                     Gymnodiscus
                                             Gymnodiscus capillaris
                                     Haastia
                                             Haastia pulvinaris
                                     Helodeaster
                                             Helodeaster erici
                                                   [Lagenophora erici]
                                     Heptanthus
                                             Heptanthus brevipes
                                             Heptanthus ranunculoides
                                     Hertia
                                             Hertia cheirifolia
                                             Hertia ciliata
                                             Hertia maroccana
                                             Hertia pallens
                                     Hippia
                                             Hippia bolusae
                                             Hippia frutescens
                                             Hippia hirsuta
                                             Hippia pilosa
                                     Hyalosperma
                                             Hyalosperma simplex
                                               Hyalosperma simplex subsp. simplex
                                     Hypericophyllum
                                             Hypericophyllum angolense
                                             Hypericophyllum compositarum
                                     Ifloga
                                             Ifloga ambigua
                                                   [Ifloga seriphioides]
                                             Ifloga decumbens
                                             Ifloga molluginoides
                                             Ifloga polycnemoides
                                             Ifloga spicata
                                               Ifloga spicata subsp. spicata
                                     Inezia
                                             Inezia integrifolia
                                     Inulanthera
                                             Inulanthera dregeana
                                             Inulanthera thodei
                                     Iogeton
                                             Iogeton nowickeanus
                                     Iphiona
                                             Iphiona mucronata
                                     Isoetopsis
                                             Isoetopsis graminifolia
                                     Japonicalia
                                             Japonicalia delphiniifolia
                                                   [Cacalia delphiniifolia]
                                     Keysseria
                                             Keysseria trachyphylla
                                     Laceanthos
                                             Laceanthos hasslerianus
                                                   [Calea hassleriana f. rigida]
                                             Laceanthos mediterraneus
                                                   [Calea platylepis var. reticulata]
                                                   [Calea platylepis]
                                     Lachnospermum
                                             Lachnospermum fasciculatum
                                             Lachnospermum imbricatum
                                     Lagenophora
                                             Lagenophora huegelii
                                             Lagenophora pumila
                                     Landerolaria
                                             Landerolaria xerophylla
                                                   [Olearia xerophila]
                                     Lasiopogon
                                             Lasiopogon glomerulatus
                                     Lawrencella
                                             Lawrencella rosea
                                     Leiocarpa
                                             Leiocarpa leptolepis
                                             Leiocarpa semicalva
                                     Lemooria
                                             Lemooria burkittii
                                     Leonis
                                             Leonis trineura
                                     Leucanthemella
                                             Leucanthemella serotina
                                                   [Chrysanthemum uliginosum]
                                     Leucogenes
                                     Lidbeckia
                                             Lidbeckia pectinata
                                     Lipotriche
                                             Lipotriche abyssinica
                                             Lipotriche marlothiana
                                             Lipotriche scandens
                                               Lipotriche scandens subsp. madagascariensis
                                               Lipotriche scandens subsp. scandens
                                                     [Melanthera scandens]
                                     Litogyne
                                             Litogyne gariepina
                                     Llerasia
                                             Llerasia assuensis
                                                   [Haplopappus assuensis]
                                             Llerasia caucana
                                                   [Haplopappus caucanus]
                                             Llerasia fuliginea
                                                   [Haplopappus fuligineus]
                                             Llerasia macrocephala
                                                   [Haplopappus lucidulus]
                                             Llerasia rufescens
                                                   [Haplopappus rufescens]
                                             Llerasia soratensis
                                                   [Haplopappus soratensis]
                                     Lomanthus
                                             Lomanthus abadianus
                                     Lonas
                                             Lonas annua
                                     Lopholaena
                                             Lopholaena coriifolia
                                             Lopholaena whyteana
                                     Lordhowea
                                             Lordhowea insularis
                                     Lourteigia
                                             Lourteigia stoechadifolia
                                     Lundinia
                                             Lundinia plumbea
                                     Mairia
                                     Mecomischus
                                             Mecomischus halimifolius
                                     Micractis
                                             Micractis bojeri
                                     Millotia
                                             Millotia myosotidifolia
                                             Millotia perpusilla
                                             Millotia tenuifolia
                                     Monactinocephalus
                                             Monactinocephalus shirensis
                                                   [Inula shirensis]
                                     Muscosomorphe
                                     Myriocephalus
                                             Myriocephalus guerinae
                                             Myriocephalus oldfieldii
                                             Myriocephalus rudallii
                                     Myrovernix
                                             Myrovernix glandulosus
                                             Myrovernix gnaphaloides
                                             Myrovernix scaber
                                                   [Elytropappus scaber]
                                     Neojeffreya
                                             Neojeffreya decurrens
                                                   [Conyza decurrens]
                                     Nicolasia
                                             Nicolasia felicioides
                                             Nicolasia stenoptera
                                     Nolletia
                                             Nolletia arenosa
                                             Nolletia chrysocomoides
                                             Nolletia ciliaris
                                             Nolletia gariepina
                                     Oldfeltia
                                             Oldfeltia polyphlebia
                                     Ondetia
                                             Ondetia linearis
                                     Oresbia
                                             Oresbia heterocarpa
                                     Osmitopsis
                                             Osmitopsis asteriscoides
                                             Osmitopsis parvifolia
                                             Osmitopsis pinnatifida
                                               Osmitopsis pinnatifida subsp. angustifolia
                                     Otoglyphis
                                             Otoglyphis pubescens
                                               Otoglyphis pubescens subsp. pubescens
                                                     [Chlamydophora pubescens]
                                     Pechuel-loeschea
                                             Pechuel-loeschea leubnitziae
                                     Pentalepis
                                             Pentalepis trichodesmoides
                                     Pentatrichia
                                             Pentatrichia alata
                                             Pentatrichia petrosa
                                             Pentatrichia rehmii
                                               Pentatrichia rehmii subsp. avasmontana
                                     Peripleura
                                             Peripleura arida
                                                   [Vittadinia arida]
                                     Perralderia
                                             Perralderia paui
                                     Petalacte
                                             Petalacte coronata
                                     Phoebanthus
                                     Pleurophyllum
                                             Pleurophyllum criniferum
                                     Podotheca
                                             Podotheca angustifolia
                                                   [Podosperma angustifolium]
                                             Podotheca chrysantha
                                                   [Podosperma chrysanthum]
                                     Polyarrhena
                                             Polyarrhena prostrata
                                             Polyarrhena reflexa
                                     Porphyrostemma
                                             Porphyrostemma grantii
                                             Porphyrostemma monocephala
                                     Psychrophyton
                                             Psychrophyton eximium
                                                   [Raoulia eximia]
                                             Psychrophyton grandiflorum
                                                   [Raoulia grandiflora]
                                     Pterochaeta
                                             Pterochaeta paniculata
                                                   [Waitzia paniculata]
                                     Quinetia
                                             Quinetia urvillei
                                     Raoulia
                                             Raoulia australis
                                             Raoulia haastii
                                             Raoulia tenuicaulis
                                     Rugelia
                                             Rugelia nudicaulis
                                                   [Cacalia rugelia]
                                     Schistostephium
                                             Schistostephium crataegifolium
                                             Schistostephium rotundifolium
                                     Schizotrichia
                                             Schizotrichia jelskii
                                     Schoenia
                                             Schoenia ayersii
                                             Schoenia cassiniana
                                     Solanecio
                                             Solanecio angulatus
                                                   [Crassocephalum bojeri]
                                             Solanecio mannii
                                                   [Crassocephalum mannii]
                                     Steirodiscus
                                     Stomatanthes
                                             Stomatanthes africanus
                                     Syncretocarpus
                                             Syncretocarpus sericeus
                                     Syneilesis
                                             Syneilesis palmata
                                     Tanacetopsis
                                             Tanacetopsis submarginata
                                     Tenrhynea
                                             Tenrhynea phylicifolia
                                     Waitzia
                                             Waitzia acuminata
                                             Waitzia nitida
                                             Waitzia suaveolens
                                     Zyrphelis
                                             Zyrphelis lasiocarpa
                                                   [Mairia lasiocarpa]
                                             Zyrphelis levis
                                                   [Gymnostephium leve]
                                     Asteropterus
                                             Asteropterus leyseroides
                                     Astranthium
                                             Astranthium beamanii
                                             Astranthium ciliatum
                                                   [Astranthium integrifolium subsp. ciliatum]
                                                   [Astranthium integrifolium var. triflorum]
                                             Astranthium integrifolium
                                             Astranthium laetificum
                                             Astranthium orthopodum
                                                   [Astranthium condimentum]
                                             Astranthium purpurascens
                                                   [Bellis purpurascens]
                                             Astranthium splendens
                                     Athanasia
                                             Athanasia crithmifolia
                                               Athanasia crithmifolia subsp. palmatifida
                                             Athanasia cuneifolia
                                                   [Athanasia obtusa]
                                             Athanasia dentata
                                             Athanasia filiformis
                                             Athanasia microphylla
                                             Athanasia minuta
                                               Athanasia minuta subsp. minuta
                                             Athanasia oocephala
                                             Athanasia pachycephala
                                             Athanasia pinnata
                                             Athanasia punctata
                                             Athanasia quinquedentata
                                               Athanasia quinquedentata subsp. quinquedentata
                                             Athanasia rugulosa
                                             Athanasia tomentosa
                                             Athanasia trifurcata
                                     Athrixia
                                             Athrixia angustissima
                                             Athrixia crinita
                                             Athrixia debilis
                                             Athrixia elata
                                             Athrixia fontana
                                             Athrixia phylicoides
                                             Athrixia rosmarinifolia
                                     Atractylis
                                             Atractylis caespitosa
                                             Atractylis cancellata
                                             Atractylis carduus
                                             Atractylis humilis
                                             Atractylis prolifera
                                             Atractylis serratuloides
                                     Atractylodes
                                             Atractylodes lancea
                                                   [Atractylis chinensis]
                                                   [Atractylis lyrata]
                                     Atrichoseris
                                             Atrichoseris platyphylla
                                                   [Atrichoseris platyphylla var. concinnus]
                                                   [Malacothrix platyphylla]
                                     Austroeupatorium
                                             Austroeupatorium inulifolium
                                                   [Eupatorium inulifolium]
                                             Austroeupatorium laetevirens
                                                   [Eupatorium steviifolium var. salicinum]
                                     Axiniphyllum
                                             Axiniphyllum corymbosum
                                             Axiniphyllum pinnatisectum
                                                   [Rumfordia pinnatisecta]
                                             Axiniphyllum sagittalobum
                                     Ayapana
                                             Ayapana lanceolata
                                     Ayapanopsis
                                             Ayapanopsis cuchabensis
                                             Ayapanopsis esperanzae
                                                   [Eupatorium esperanzae]
                                     Aylacophora
                                     Aztecaster
                                             Aztecaster pyramidatus
                                                   [Baccharis pyramidata]
                                                   [Bigelowia pyramidata]
                                     Baccharis
                                             Baccharis abientina
                                             Baccharis absinthioides
                                             Baccharis acaulis
                                             Baccharis acerosa
                                             Baccharis acutata
                                             Baccharis adnata
                                             Baccharis affinis
                                             Baccharis alamanii
                                             Baccharis alaternoides
                                             Baccharis albida
                                             Baccharis albolanosa
                                             Baccharis aliena
                                                   [Heterothalamus alienus]
                                             Baccharis alleluia
                                             Baccharis alnifolia
                                             Baccharis alpestris
                                             Baccharis alpina
                                               Baccharis alpina var. macrocephala
                                               Baccharis alpina var. nummuloides
                                               Baccharis alpina var. serpyllifolia
                                               Baccharis alpina var. surculosa
                                             Baccharis altimontana
                                             Baccharis amambayensis
                                             Baccharis amygdalina
                                             Baccharis anabelae
                                             Baccharis anceps
                                             Baccharis androgyna
                                             Baccharis angelica
                                             Baccharis angulata
                                               Baccharis angulata var. gracilis
                                             Baccharis angusticeps
                                             Baccharis angustifolia
                                             Baccharis anomala
                                             Baccharis antioquensis
                                             Baccharis aphylla
                                             Baccharis apicifoliosa
                                             Baccharis aracatubensis
                                             Baccharis arborea
                                             Baccharis arbutifolia
                                               Baccharis arbutifolia var. jamesonii
                                             Baccharis arenaria
                                             Baccharis aretioides
                                             Baccharis argentina
                                             Baccharis arizonica
                                             Baccharis artemisioides
                                             Baccharis articulata
                                             Baccharis asperifolia
                                             Baccharis asperula
                                             Baccharis assuensis
                                             Baccharis asteroides
                                             Baccharis attenuata
                                             Baccharis auriculigera
                                             Baccharis axillaris
                                             Baccharis ayacuchensis
                                             Baccharis baldwinii
                                             Baccharis balnearia
                                             Baccharis balsamifera
                                             Baccharis barragensis
                                             Baccharis beckii
                                               Baccharis benzanilleana var. solisi
                                             Baccharis berberifolia
                                             Baccharis bezanilleana
                                             Baccharis bicolor
                                             Baccharis bifrons
                                             Baccharis bigelovii
                                             Baccharis blanchetiana
                                             Baccharis bogotensis
                                             Baccharis boliviensis
                                               Baccharis boliviensis var. latifolia
                                             Baccharis boyacensis
                                             Baccharis brachylaenoides
                                               Baccharis brachylaenoides subsp. occigranatensis
                                               Baccharis brachylaenoides var. ligustrina
                                               Baccharis brachylaenoides var. mathewsii
                                               Baccharis brachylaenoides var. oblanceolata
                                             Baccharis brachyphylla
                                                   [Neomolina brachyphylla]
                                             Baccharis brachystachys
                                             Baccharis bracteata
                                             Baccharis brasiliana
                                             Baccharis braunii
                                             Baccharis brevifolia
                                             Baccharis brevipappa
                                                   [Baccharis multiflora var. brevipappa]
                                             Baccharis breviseta
                                               Baccharis breviseta var. colombiana
                                             Baccharis bryoides
                                             Baccharis buchtienii
                                             Baccharis buddlejoides
                                             Baccharis bupleuroides
                                             Baccharis burchellii
                                             Baccharis buxifolia
                                             Baccharis cabrerae
                                             Baccharis caerulescens
                                             Baccharis caespitosa
                                               Baccharis caespitosa subsp. procumbens
                                               Baccharis caespitosa var. alpina
                                               Baccharis caespitosa var. nummuloides
                                               Baccharis caespitosa var. surculosa
                                             Baccharis caldasiana
                                             Baccharis calliprinos
                                             Baccharis callistemoides
                                             Baccharis calvescens
                                             Baccharis camporum
                                               Baccharis camporum var. glaucescens
                                             Baccharis campos-portoana
                                             Baccharis cana
                                             Baccharis candolleana
                                             Baccharis canescens
                                             Baccharis capitalensis
                                             Baccharis capitata
                                               Baccharis capitata var. entera
                                             Baccharis capitoides
                                             Baccharis caprariifolia
                                             Baccharis cassinifolia
                                             Baccharis cassinoides
                                             Baccharis cataphracta
                                             Baccharis cayambense
                                             Baccharis cephalotes
                                             Baccharis chachapoyasensis
                                             Baccharis charucoensis
                                             Baccharis chilcaura
                                             Baccharis chilco
                                             Baccharis chilquilla
                                             Baccharis chinensis
                                             Baccharis chionolaenoides
                                             Baccharis chubutensis
                                             Baccharis ciliata
                                             Baccharis cinerea
                                             Baccharis cinnamomifolia
                                             Baccharis claussenii
                                             Baccharis cochensis
                                             Baccharis coerulescens
                                             Baccharis cognata
                                             Baccharis complanata
                                             Baccharis concava
                                             Baccharis concinna
                                             Baccharis condensata
                                             Baccharis conferta
                                             Baccharis confertifolia
                                             Baccharis confertoides
                                             Baccharis congesta
                                             Baccharis conwayi
                                             Baccharis conyzoides
                                             Baccharis cordobensis
                                             Baccharis coridifolia
                                               Baccharis coridifolia subsp. bicolor
                                             Baccharis coronata
                                             Baccharis corymbosa
                                             Baccharis cotinifolia
                                             Baccharis crassicuneata
                                             Baccharis crassipappa
                                             Baccharis crenulata
                                             Baccharis crispa
                                             Baccharis cultrata
                                             Baccharis cundinamarcensis
                                             Baccharis cuneata
                                             Baccharis cuneifolia
                                             Baccharis cupressiformis
                                             Baccharis curitybensis
                                             Baccharis curtifolia
                                             Baccharis cutervensis
                                             Baccharis cylindrica
                                             Baccharis cymosa
                                               Baccharis daphnoides subsp. schomburgkii
                                             Baccharis darwinii
                                             Baccharis davidsonii
                                             Baccharis debilis
                                             Baccharis deblei
                                             Baccharis decurrens
                                             Baccharis decussata
                                               Baccharis decussata subsp. jelskii
                                             Baccharis deltoidea
                                             Baccharis densa
                                             Baccharis densiflora
                                               Baccharis densiflora subsp. densiflora
                                                     [Baccharis densifolia]
                                               Baccharis densiflora subsp. perulata
                                             Baccharis dentata
                                             Baccharis denticulata
                                             Baccharis dependens
                                             Baccharis dichotoma
                                             Baccharis dioica
                                             Baccharis dioscoridis
                                             Baccharis discolor
                                             Baccharis divaricata
                                             Baccharis divergens
                                             Baccharis dracunculifolia
                                               Baccharis dracunculifolia var. integerrima
                                               Baccharis dracunculifolia var. subdentata
                                             Baccharis dubia
                                             Baccharis dudleyi
                                             Baccharis dunensis
                                             Baccharis dusenii
                                             Baccharis effusa
                                             Baccharis eggersii
                                             Baccharis elaeagnoides
                                             Baccharis elaeoides
                                             Baccharis elegans
                                               Baccharis elegans var. seemannii
                                             Baccharis elliptica
                                             Baccharis emarginata
                                             Baccharis erectifolia
                                             Baccharis ericoides
                                             Baccharis erigeroides
                                             Baccharis erioclada
                                             Baccharis erioptera
                                             Baccharis erosoricola
                                             Baccharis espadae
                                             Baccharis eupatorioides
                                             Baccharis fallax
                                             Baccharis famatinensis
                                             Baccharis farinosa
                                             Baccharis fasiculata
                                             Baccharis fevillei
                                             Baccharis flabellata
                                             Baccharis flexuosa
                                             Baccharis flexuosiramosa
                                             Baccharis floccosa
                                             Baccharis floribunda
                                             Baccharis floribundoides
                                             Baccharis foetida
                                             Baccharis foliosa
                                             Baccharis fraterna
                                             Baccharis frenguellii
                                             Baccharis friburgensis
                                             Baccharis frigida
                                             Baccharis fuliginea
                                             Baccharis fusca
                                             Baccharis gaudichaudiana
                                               Baccharis genistelloides subsp. crispa
                                               Baccharis genistelloides subsp. venosa
                                               Baccharis genistelloides var. angusta
                                               Baccharis genistelloides var. brachystachys
                                               Baccharis genistelloides var. crispa
                                               Baccharis genistelloides var. cylindrica
                                               Baccharis genistelloides var. trimera
                                             Baccharis genistifolia
                                             Baccharis gibertii
                                             Baccharis gilliesii
                                             Baccharis glandulifera
                                             Baccharis glandulosa
                                             Baccharis glaucescens
                                             Baccharis glaziovii
                                             Baccharis glomerata
                                             Baccharis glomeruliflora
                                             Baccharis glutinosa
                                                   [Baccharis douglasii]
                                             Baccharis gnaphalioides
                                             Baccharis gnidiifolia
                                             Baccharis gracilis
                                             Baccharis granadina
                                             Baccharis grandicapitulata
                                               Baccharis grandicapitulata var. subdentata
                                             Baccharis grandiflora
                                               Baccharis grandiflora subsp. farallonensis
                                               Baccharis grandiflora var. colombiana
                                               Baccharis grandiflora var. crassivestita
                                             Baccharis grandimucronata
                                             Baccharis graveolens
                                             Baccharis grindeliifolia
                                             Baccharis grisebachii
                                             Baccharis grossedentata
                                             Baccharis guascensis
                                             Baccharis haenkei
                                             Baccharis haitiensis
                                             Baccharis halimifolia
                                               Baccharis halimifolia var. angustior
                                             Baccharis halimimorpha
                                             Baccharis hambatensis
                                             Baccharis havardii
                                             Baccharis helichrysoides
                                             Baccharis hemiptera
                                             Baccharis heterophylla
                                               Baccharis heterophylla var. heterophylla
                                             Baccharis heterothalamoides
                                             Baccharis hieracifolia
                                             Baccharis hieronymi
                                             Baccharis hirta
                                             Baccharis hirtella
                                             Baccharis holmbergii
                                             Baccharis horizontalis
                                             Baccharis huairacajensis
                                             Baccharis humifusa
                                             Baccharis humilis
                                             Baccharis hutchisonii
                                             Baccharis huydobriana
                                             Baccharis hyemalis
                                             Baccharis hypericifolia
                                             Baccharis ibaguensis
                                             Baccharis icma
                                             Baccharis ilinissae
                                             Baccharis illinita
                                             Baccharis illinitoides
                                             Baccharis imbricata
                                             Baccharis inamoena
                                             Baccharis incisa
                                             Baccharis indica
                                             Baccharis inexspectata
                                             Baccharis intermedia
                                             Baccharis intermixta
                                             Baccharis involucrata
                                             Baccharis iresinoides
                                             Baccharis isabelae
                                             Baccharis itapirocensis
                                             Baccharis itatiaiae
                                             Baccharis ivifolia
                                             Baccharis jelskii
                                               Baccharis jelskii var. cladotricha
                                               Baccharis jelskii var. xanthopappus
                                             Baccharis jocheniana
                                             Baccharis johnwurdackiana
                                             Baccharis juncea
                                               Baccharis juncea subsp. clavata
                                             Baccharis junciformis
                                             Baccharis kellermanii
                                             Baccharis kingii
                                             Baccharis klattii
                                             Baccharis kraussei
                                             Baccharis kuntzeana
                                             Baccharis kurtziana
                                             Baccharis lanceolata
                                             Baccharis lancifolia
                                             Baccharis lapidosa
                                             Baccharis lateralis
                                             Baccharis latifolia
                                             Baccharis laxa
                                             Baccharis laxiflora
                                             Baccharis ledifolia
                                             Baccharis lehmannii
                                             Baccharis lejia
                                             Baccharis lepidota
                                             Baccharis leptocephala
                                             Baccharis leptophylla
                                             Baccharis leptospermoides
                                             Baccharis lessingiana
                                             Baccharis leucocephala
                                             Baccharis leucopappa
                                             Baccharis lewisii
                                             Baccharis libertadensis
                                             Baccharis ligustrina
                                             Baccharis lilloi
                                             Baccharis linearifolia
                                               Baccharis linearifolia subsp. chilco
                                               Baccharis linearifolia subsp. polycephala
                                             Baccharis linearis
                                             Baccharis lingulata
                                             Baccharis linifolia
                                             Baccharis lloensis
                                             Baccharis longiattenuata
                                             Baccharis longifolia
                                             Baccharis longii
                                             Baccharis longipes
                                             Baccharis lorentzii
                                             Baccharis loxensis
                                             Baccharis lucida
                                             Baccharis lundii
                                             Baccharis lychnophora
                                             Baccharis lycioides
                                             Baccharis lymanii
                                             Baccharis macraei
                                             Baccharis macrantha
                                               Baccharis macrantha subsp. caucaensis
                                               Baccharis macrantha subsp. cundinamarcensis
                                               Baccharis macrantha subsp. lloensis
                                               Baccharis macrantha subsp. minor
                                               Baccharis macrantha var. cocuyensis
                                               Baccharis macrantha var. minor
                                               Baccharis macrantha var. pastoensis
                                             Baccharis macrocephala
                                             Baccharis macrophylla
                                             Baccharis magellanica
                                               Baccharis magellanica var. subviscosa
                                               Baccharis magellanica var. viscosissima
                                             Baccharis magnifica
                                             Baccharis maguireana
                                             Baccharis malibuensis
                                             Baccharis malmei
                                             Baccharis mandonii
                                             Baccharis mapirensis
                                             Baccharis marcetiifolia
                                             Baccharis marginalis
                                               Baccharis marginalis var. coerulescens
                                               Baccharis marginalis var. longipes
                                               Baccharis marginalis var. viminea
                                             Baccharis maritima
                                             Baccharis markoi
                                             Baccharis martiana
                                             Baccharis matudae
                                             Baccharis maxima
                                             Baccharis medullosa
                                             Baccharis megapotamica
                                               Baccharis megapotamica var. weirii
                                             Baccharis melanopotamica
                                             Baccharis melastomifolia
                                             Baccharis meridensis
                                             Baccharis meridionalis
                                             Baccharis mesoneura
                                             Baccharis mexicana
                                             Baccharis micrantha
                                             Baccharis microcephala
                                             Baccharis microdonta
                                             Baccharis microphylla
                                               Baccharis microphylla var. incarum
                                               Baccharis microphylla var. pulverulenta
                                               Baccharis microphylla var. rhomboidea
                                             Baccharis milleflora
                                             Baccharis minutiflora
                                             Baccharis mirabilis
                                             Baccharis mocoafluminis
                                             Baccharis mollis
                                             Baccharis monoica
                                             Baccharis montana
                                             Baccharis montevidensis
                                               Baccharis moritziana var. subcrenatoserrata
                                             Baccharis mucronata
                                             Baccharis mucuchinesensis
                                             Baccharis muelleri
                                             Baccharis multiflora
                                               Baccharis multiflora var. herbacea
                                               Baccharis multiflora var. multiflora
                                             Baccharis multiflosculosa
                                             Baccharis multifolia
                                             Baccharis multisulcata
                                             Baccharis mutisiana
                                             Baccharis mylodontis
                                             Baccharis myricifolia
                                             Baccharis myriocephala
                                             Baccharis myrsinites
                                               Baccharis myrsinites var. mornicola
                                             Baccharis myrtilloides
                                             Baccharis nana
                                             Baccharis napaea
                                             Baccharis neaei
                                             Baccharis nebularis
                                             Baccharis neglecta
                                             Baccharis nemorosa
                                             Baccharis neorupestris
                                             Baccharis nervosa
                                             Baccharis nesomiana
                                             Baccharis niederleinii
                                             Baccharis nipensis
                                             Baccharis nitida
                                             Baccharis nivalis
                                             Baccharis notosergila
                                             Baccharis nuda
                                             Baccharis nummularia
                                             Baccharis oaxacana
                                             Baccharis obdeltata
                                             Baccharis oblanceolata
                                             Baccharis oblongifolia
                                             Baccharis obovata
                                               Baccharis obovata var. ecuadorensis
                                               Baccharis obovata var. poeppigiana
                                             Baccharis obtusifolia
                                             Baccharis occidentalis
                                             Baccharis ocellata
                                             Baccharis ochracea
                                             Baccharis odorata
                                               Baccharis odorata var. balsamifera
                                               Baccharis odorata var. latifolia
                                               Baccharis odorata var. nummularia
                                             Baccharis oligantha
                                             Baccharis oppositifolia
                                             Baccharis opuntioides
                                             Baccharis orbiculata
                                             Baccharis orbignyana
                                             Baccharis oreophila
                                             Baccharis organensis
                                             Baccharis orientalis
                                               Baccharis orientalis var. acutata
                                             Baccharis oronocensis
                                               Baccharis oronocensis var. perua
                                             Baccharis ovalis
                                             Baccharis ovata
                                             Baccharis oxyodonta
                                               Baccharis oxyodonta var. punctulata
                                             Baccharis oxyphylla
                                             Baccharis pachycephala
                                             Baccharis padifolia
                                             Baccharis palenae
                                             Baccharis pallida
                                             Baccharis palmeri
                                             Baccharis palustris
                                             Baccharis pampeana
                                             Baccharis paniculata
                                             Baccharis papillosa
                                               Baccharis papillosa subsp. australis
                                               Baccharis papillosa subsp. chaparensis
                                               Baccharis papillosa subsp. integrifolia
                                               Baccharis papillosa subsp. kessleri
                                               Baccharis papillosa subsp. longipedicellata
                                               Baccharis papillosa subsp. yungensis
                                             Baccharis paramicola
                                             Baccharis paranensis
                                             Baccharis parvidentata
                                             Baccharis parviflora
                                             Baccharis pascensis
                                             Baccharis pastoensis
                                             Baccharis patagonica
                                               Baccharis patagonica var. palenae
                                             Baccharis patens
                                             Baccharis patiensis
                                               Baccharis patiensis var. pluridentata
                                             Baccharis paucidentata
                                             Baccharis pauciflosculosa
                                             Baccharis pedalis
                                             Baccharis pedersenii
                                             Baccharis pedunculata
                                             Baccharis pellucida
                                             Baccharis pendula
                                             Baccharis penningtonii
                                             Baccharis pentaptera
                                             Baccharis pentlandii
                                               Baccharis pentlandii subsp. sculpta
                                             Baccharis pentodonta
                                             Baccharis pentziifolia
                                             Baccharis perdusenii
                                             Baccharis perlata
                                             Baccharis perulata
                                             Baccharis peruviana
                                             Baccharis petiolata
                                             Baccharis petraea
                                             Baccharis petrophila
                                             Baccharis pflanzii
                                             Baccharis philipensis
                                             Baccharis phylicifolia
                                             Baccharis phyliciformis
                                             Baccharis phylicoides
                                             Baccharis phyteuma
                                             Baccharis phyteumoides
                                             Baccharis pilcensis
                                             Baccharis pilularis
                                               Baccharis pilularis subsp. consanguinea
                                                     [Baccharis consanguinea]
                                                     [Baccharis pilularis var. consanguinea]
                                               Baccharis pilularis subsp. pilularis
                                                     [Baccharis pilularis var. pilularis]
                                               Baccharis pilularis var. pilularis
                                               Baccharis pilularis var. consanguinea
                                             Baccharis pingraea
                                               Baccharis pingraea var. latifolia
                                             Baccharis pinnatifida
                                             Baccharis platensis
                                             Baccharis platypoda
                                             Baccharis plucheaeformis
                                             Baccharis plummerae
                                                   [Neomolina plummerae]
                                               Baccharis plummerae subsp. glabrata
                                               Baccharis plummerae subsp. plummerae
                                             Baccharis pluricapitulata
                                             Baccharis pluridentata
                                             Baccharis poeppigiana
                                             Baccharis pohlii
                                             Baccharis polifolia
                                             Baccharis polyantha
                                               Baccharis polyantha var. macrophylla
                                             Baccharis polycephala
                                             Baccharis polygalifolia
                                             Baccharis polygama
                                             Baccharis polygona
                                             Baccharis polyphylla
                                             Baccharis polyptera
                                             Baccharis popayanensis
                                             Baccharis potosiensis
                                             Baccharis potosina
                                             Baccharis praetermissa
                                             Baccharis pringlei
                                             Baccharis prinoides
                                             Baccharis procumbens
                                             Baccharis prorepens
                                             Baccharis prostrata
                                               Baccharis prostrata var. lineata
                                             Baccharis prunifolia
                                               Baccharis prunifolia var. prunifolia
                                               Baccharis prunifolia var. sierrana
                                               Baccharis prunifolia var. subprunifolia
                                             Baccharis psammophila
                                             Baccharis pseudoalpestris
                                             Baccharis pseudobrevifolia
                                             Baccharis pseudomyriocephala
                                             Baccharis pseudoserrulata
                                             Baccharis pseudospathulata
                                             Baccharis pseudospicata
                                             Baccharis pseudotenuifolia
                                               Baccharis pseudotenuifolia var. leptophylla
                                             Baccharis pseudovaccinioides
                                                   [Baccharis vaccinioides]
                                             Baccharis pseudovillosa
                                             Baccharis psiadioides
                                             Baccharis ptariensis
                                             Baccharis ptarmicifolia
                                             Baccharis pteronioides
                                             Baccharis pulchella
                                               Baccharis pulchella var. grisea
                                             Baccharis pululahuensis
                                             Baccharis pulverulenta
                                             Baccharis pumila
                                             Baccharis punctigera
                                             Baccharis punctulata
                                             Baccharis purpurascens
                                             Baccharis pycnantha
                                             Baccharis quadrangularis
                                             Baccharis quitensis
                                             Baccharis racemosa
                                               Baccharis racemosa var. eupatorioides
                                             Baccharis radin
                                             Baccharis ramboi
                                             Baccharis ramiflora
                                               Baccharis ramiflora var. squarrulosa
                                             Baccharis ramosissima
                                             Baccharis ramulosa
                                             Baccharis raulii
                                             Baccharis recurvata
                                             Baccharis refracta
                                             Baccharis regnellii
                                               Baccharis regnellii var. subalata
                                             Baccharis resinosa
                                               Baccharis resinosa var. truncatifolia
                                             Baccharis retamoides
                                             Baccharis reticularia
                                             Baccharis reticularioides
                                             Baccharis reticulata
                                             Baccharis retusa
                                             Baccharis revoluta
                                             Baccharis rhetinodes
                                             Baccharis rhexioides
                                               Baccharis rhexioides var. parvifolia
                                             Baccharis rhomboidalis
                                               Baccharis rhomboidalis var. nemorosa
                                             Baccharis riograndensis
                                             Baccharis riparia
                                             Baccharis rivularis
                                             Baccharis rodriguezii
                                             Baccharis roraimae
                                             Baccharis rosmarinifolia
                                               Baccharis rosmarinifolia var. callistemoides
                                               Baccharis rosmarinifolia var. subandina
                                               Baccharis rosmarinifolia var. subsinuata
                                             Baccharis rotundifolia
                                               Baccharis rotundifolia var. stuckertii
                                             Baccharis rubricaulis
                                             Baccharis rufescens
                                               Baccharis rufescens var. alpestris
                                               Baccharis rufescens var. leptocephala
                                               Baccharis rufescens var. leptophylla
                                               Baccharis rufescens var. pedalis
                                               Baccharis rufescens var. tenuifolia
                                               Baccharis rufescens var. varians
                                               Baccharis rufescens var. ventanicola
                                             Baccharis rufidula
                                             Baccharis rupicola
                                               Baccharis rupicola var. orientalis
                                               Baccharis rupicola var. serrata
                                               Baccharis rupicola var. summapacis
                                             Baccharis sagittalis
                                               Baccharis sagittalis var. poeppigii
                                             Baccharis salicifolia
                                               Baccharis salicifolia subsp. salicifolia
                                                     [Baccharis glutinosa]
                                                     [Baccharis viminea]
                                               Baccharis salicifolia subsp. calliprinos
                                               Baccharis salicifolia subsp. monoica
                                               Baccharis salicifolia var. longifolia
                                               Baccharis salicifolia var. mocoafluminis
                                             Baccharis salicina
                                                   [Baccharis emoryi]
                                             Baccharis saliens
                                               Baccharis saliens var. solomonii
                                             Baccharis salvia
                                             Baccharis salzmannii
                                             Baccharis samensis
                                             Baccharis santelicis
                                               Baccharis santelicis subsp. chrysophylla
                                             Baccharis santiagensis
                                             Baccharis sarophora
                                             Baccharis sarothroides
                                             Baccharis saxatilis
                                             Baccharis scabra
                                             Baccharis scabridula
                                             Baccharis scabrifolia
                                             Baccharis scandens
                                             Baccharis schiedeana
                                             Baccharis schomburgkii
                                               Baccharis schomburgkii subsp. occidentalis
                                             Baccharis schultzii
                                             Baccharis scolopendra
                                             Baccharis scoparia
                                             Baccharis scoparioides
                                             Baccharis scopulorum
                                             Baccharis sculpta
                                             Baccharis sebastianopolitana
                                             Baccharis seemannii
                                             Baccharis selloi
                                             Baccharis semiserrata
                                               Baccharis semiserrata var. elaegnoides
                                               Baccharis semiserrata var. glabrata
                                             Baccharis senegalensis
                                             Baccharis sergiloides
                                             Baccharis serranoi
                                             Baccharis serratifolia
                                             Baccharis serrifolia
                                             Baccharis serrula
                                             Baccharis serrulata
                                               Baccharis serrulata var. pingraea
                                               Baccharis serrulata var. subscandens
                                             Baccharis sessiliflora
                                               Baccharis sessiliflora var. stuckertii
                                             Baccharis sessilifolia
                                             Baccharis shaferi
                                             Baccharis simplex
                                             Baccharis singularis
                                             Baccharis sinuata
                                             Baccharis sodiroi
                                             Baccharis solieri
                                             Baccharis solisi
                                             Baccharis solomonii
                                             Baccharis sordescens
                                             Baccharis spartea
                                             Baccharis spartioides
                                             Baccharis spathulata
                                             Baccharis speciosa
                                             Baccharis sphaerocephala
                                             Baccharis sphagnophila
                                             Baccharis sphenophylla
                                             Baccharis splendens
                                             Baccharis squarrosa
                                             Baccharis steetzii
                                             Baccharis stenophylla
                                             Baccharis sternbergiana
                                               Baccharis sternbergiana var. pubescens
                                             Baccharis strobeliana
                                             Baccharis stuebelii
                                             Baccharis stylosa
                                             Baccharis subalata
                                               Baccharis subalata var. vargasii
                                             Baccharis subandina
                                             Baccharis subbimera
                                             Baccharis subcapitata
                                             Baccharis subdentata
                                               Baccharis subdentata var. incogitata
                                               Baccharis subdentata var. incognita
                                             Baccharis suberectifolia
                                             Baccharis subopposita
                                               Baccharis subopposita var. affinis
                                             Baccharis subpingraea
                                             Baccharis subrufescens
                                             Baccharis subsculpta
                                             Baccharis subtropicalis
                                             Baccharis subulata
                                             Baccharis subumbelliformis
                                             Baccharis sulcata
                                             Baccharis supplex
                                             Baccharis syncephala
                                             Baccharis tafiensis
                                             Baccharis talcareguensis
                                             Baccharis taltalensis
                                             Baccharis tarchonanthoides
                                             Baccharis tarmensis
                                             Baccharis teindalensis
                                             Baccharis tenella
                                             Baccharis tenuicapitulata
                                             Baccharis tenuifolia
                                               Baccharis tenuifolia var. leptophylla
                                             Baccharis tenuiptera
                                             Baccharis texana
                                             Baccharis thesioides
                                                   [Baccharis alamosana]
                                             Baccharis thomasii
                                             Baccharis thymifolia
                                             Baccharis tola
                                               Baccharis tola subsp. altiplanicola
                                               Baccharis tola subsp. fimbriata
                                               Baccharis tola subsp. sanctelicis
                                               Baccharis tola var. chrysophylla
                                               Baccharis tola var. incarum
                                               Baccharis tola var. lejia
                                               Baccharis tola var. viscosissima
                                             Baccharis tolimensis
                                             Baccharis tomentosa
                                             Baccharis torricoi
                                             Baccharis trianae
                                             Baccharis triangularis
                                             Baccharis trichoclada
                                             Baccharis trichotoma
                                             Baccharis tricuneata
                                               Baccharis tricuneata var. antioquensis
                                               Baccharis tricuneata var. lineata
                                               Baccharis tricuneata var. minifolia
                                               Baccharis tricuneata var. paramorum
                                               Baccharis tricuneata var. parvifolia
                                               Baccharis tricuneata var. procumbens
                                               Baccharis tricuneata var. pulverulenta
                                               Baccharis tricuneata var. robusta
                                               Baccharis tricuneata var. ruiziana
                                               Baccharis tricuneata var. tolimensis
                                               Baccharis tricuneata var. variifolia
                                               Baccharis tridentata var. pluridentata
                                               Baccharis tridentata var. subopposita
                                             Baccharis trilobata
                                             Baccharis trimera
                                               Baccharis trimera var. viscosissima
                                             Baccharis trinervis
                                               Baccharis trinervis var. debilis
                                               Baccharis trinervis var. rhexioides
                                             Baccharis trineura
                                             Baccharis trinitensis
                                             Baccharis triplinervis
                                             Baccharis truncata
                                             Baccharis tucumanensis
                                               Baccharis tucumanensis var. angustifolia
                                               Baccharis tucumanensis var. myrtilloides
                                             Baccharis tweediei
                                             Baccharis uleana
                                             Baccharis ulicina
                                               Baccharis ulicina var. humilis
                                               Baccharis ulicina var. multifida
                                               Baccharis ulicina var. subintegrifolia
                                             Baccharis ulmifolia
                                             Baccharis umbellata
                                             Baccharis umbelliformis
                                               Baccharis umbelliformis var. ocellata
                                               Baccharis umbelliformis var. poeppigiana
                                             Baccharis uncinella
                                             Baccharis uniflora
                                             Baccharis urvilleana
                                             Baccharis usterii
                                             Baccharis ustulata
                                             Baccharis vacciniifolia
                                             Baccharis vanessae
                                             Baccharis variabiliflora
                                             Baccharis varians
                                             Baccharis variifolia
                                             Baccharis velutina
                                             Baccharis veneta
                                             Baccharis venosa
                                                   [Baccharis genistelloides]
                                             Baccharis ventanicola
                                             Baccharis venulosa
                                               Baccharis venulosa var. cuspidibracteata
                                               Baccharis venulosa var. oblanceolata
                                               Baccharis venulosa var. occigranatensis
                                             Baccharis venulosoides
                                             Baccharis venusta
                                             Baccharis vernalis
                                             Baccharis vernicosa
                                             Baccharis vernonioides
                                               Baccharis viminea var. atwoodii
                                               Baccharis viminea var. viminea
                                             Baccharis vincifolia
                                             Baccharis viscosa
                                               Baccharis viscosa var. nigricans
                                             Baccharis vismioides
                                             Baccharis volubilis
                                             Baccharis vulneraria
                                             Baccharis wagenitzii
                                             Baccharis weirii
                                             Baccharis woodii
                                             Baccharis woytkowskii
                                             Baccharis wrightii
                                               Baccharis wrightii var. pyrrhopappa
                                             Baccharis wurdackiana
                                             Baccharis xalapensis
                                             Baccharis xerophila
                                             Baccharis xiphophylla
                                             Baccharis zamoranensis
                                             Baccharis zoellneri
                                             Baccharis zongoensis
                                             Baccharis zumbadorensis
                                     Baccharoides
                                             Baccharoides adoensis
                                                   [Vernonia adoensis]
                                             Baccharoides filipendula
                                                   [Vernonia filipendula]
                                     Badilloa
                                     Baeria
                                     Baeriopsis
                                             Baeriopsis guadalupensis
                                     Bahia
                                             Bahia ambrosioides
                                             Bahia palmeri
                                     Bahiopsis
                                             Bahiopsis carterae
                                                   [Viguiera carterae]
                                             Bahiopsis chenopodina
                                                   [Viguiera chenopodina]
                                                   [Viguiera deltoidea var. chenopodina]
                                                   [Viguiera deltoidea var. townsendii]
                                             Bahiopsis deltoidea
                                                   [Viguiera deltoidea var. deltoidea]
                                                   [Viguiera deltoidea var. genuina]
                                                   [Viguiera deltoidea var. tastensis]
                                                   [Viguiera deltoidea]
                                             Bahiopsis laciniata
                                                   [Viguiera laciniata]
                                             Bahiopsis lanata
                                                   [Viguiera lanata]
                                             Bahiopsis microphylla
                                                   [Viguiera microphylla]
                                             Bahiopsis parishii
                                                   [Viguiera deltoidea var. parishii]
                                                   [Viguiera parishii]
                                             Bahiopsis reticulata
                                                   [Viguiera reticulata]
                                             Bahiopsis similis
                                                   [Helianthus similis]
                                                   [Viguiera similis]
                                             Bahiopsis subincisa
                                                   [Viguiera subincisa]
                                             Bahiopsis tomentosa
                                                   [Viguiera tomentosa]
                                             Bahiopsis triangularis
                                                   [Viguiera triangularis]
                                     Baileya
                                             Baileya australis
                                             Baileya multiradiata
                                                   [Baileya multiradiata var. multiradiata]
                                                   [Baileya multiradiata var. thurberi]
                                                   [Baileya pleniradiata var. multiradiata]
                                             Baileya pauciradiata
                                             Baileya pleniradiata
                                                   [Baileya multiradiata var. pleniradiata]
                                                   [Baileya nervosa]
                                                   [Baileya perennis]
                                                   [Baileya pleniradiata var. perennis]
                                     Bajacalia
                                             Bajacalia crassifolia
                                                   [Porophyllum crassifolium]
                                                   [Porophyllum leptophyllum]
                                                   [Porophyllum tridentatum var. crassifolium]
                                             Bajacalia moranii
                                             Bajacalia tridentata
                                                   [Porophyllum tridentatum var. tridentatum]
                                                   [Porophyllum tridentatum]
                                     Balduina
                                             Balduina angustifolia
                                             Balduina atropurpurea
                                             Balduina uniflora
                                     Balsamita
                                     Balsamorhiza
                                             Balsamorhiza careyana
                                               Balsamorhiza careyana var. intermedia
                                             Balsamorhiza deltoidea
                                                   [Balsamorhiza glabrescens]
                                             Balsamorhiza hirsuta
                                                   [Balsamorhiza hookeri var. hirsuta]
                                                   [Balsamorhiza hookeri var. neglecta]
                                             Balsamorhiza hispidula
                                                   [Balsamorhiza hookeri var. hispidula]
                                             Balsamorhiza hookeri
                                                   [Balsamorhiza macrolepis var. platylepis]
                                               Balsamorhiza hookeri var. hookeri
                                               Balsamorhiza hookeri var. idahoensis
                                                     [Balsamorhiza macrophylla var. idahoensis]
                                               Balsamorhiza hookeri var. lagocephala
                                                     [Balsamorhiza hirsuta var. lagocephala]
                                               Balsamorhiza hookeri var. neglecta
                                                     [Balsamorhiza hirsuta var. neglecta]
                                             Balsamorhiza incana
                                             Balsamorhiza lanata
                                                   [Balsamorhiza hookeri var. lanata]
                                             Balsamorhiza macrolepis
                                                   [Balsamorhiza macrolepis var. macrolepis]
                                             Balsamorhiza macrophylla
                                             Balsamorhiza rosea
                                             Balsamorhiza sagittata
                                                   [Buphthalmum sagittatum]
                                                   [Espeletia sagittata]
                                             Balsamorhiza sericea
                                             Balsamorhiza serrata
                                             Balsamorhiza terebinthacea
                                     Baltimora
                                             Baltimora geminata
                                             Baltimora recta
                                     Barkhausia
                                     Barkleyanthus
                                             Barkleyanthus salicifolius
                                                   [Senecio salignus]
                                     Barnadesia
                                             Barnadesia aculeata
                                             Barnadesia arborea
                                             Barnadesia glomerata
                                                   [Barnadesia glomerata var. mucronata]
                                             Barnadesia horrida
                                             Barnadesia kingii
                                             Barnadesia parviflora
                                             Barnadesia spinosa
                                                   [Barnadesia spinosa var. recurvata]
                              Barnadesioideae
                                     Barroetea
                                     Bartlettia
                                             Bartlettia scaposa
                                     Bartlettina
                                             Bartlettina breedlovei
                                             Bartlettina constipatiflora
                                                   [Eupatorium constipatiflorum]
                                             Bartlettina cronquistii
                                             Bartlettina hemisphaerica
                                                   [Eupatorium mexiae]
                                             Bartlettina heydeana
                                                   [Amolinia heydeana]
                                             Bartlettina hintonii
                                             Bartlettina karwinskiana
                                                   [Eupatorium karwinskianum]
                                             Bartlettina lanicaulis
                                                   [Critonia lanicaulis]
                                                   [Eupatorium lanicaule]
                                             Bartlettina luxii
                                                   [Eupatorium luxii]
                                             Bartlettina macdougallii
                                                   [Eupatorium macdougallii]
                                             Bartlettina oresbia
                                                   [Bartlettina hylobia]
                                                   [Bartlettina oresbioides]
                                                   [Eupatorium oresbium]
                                             Bartlettina pansamalensis
                                                   [Eupatorium pansamalense]
                                             Bartlettina pinabetensis
                                                   [Eupatorium pinabetense]
                                             Bartlettina platyphylla
                                             Bartlettina sordida
                                                   [Eupatorium sordidum]
                                             Bartlettina tuerckheimii
                                                   [Eupatorium tuerckheimii]
                                     Batopilasia
                                             Batopilasia byei
                                                   [Erigeron byei]
                                     Bebbia
                                             Bebbia juncea
                                                   [Bebbia filifolia]
                                               Bebbia juncea var. aspera
                                               Bebbia juncea var. atriplicifolia
                                                     [Bebbia atriplicifolia]
                                                     [Carphephorus atriplicifolius]
                                               Bebbia juncea var. juncea
                                     Bedfordia
                                             Bedfordia salicina
                                     Bellis
                                             Bellis annua
                                             Bellis caerulescens
                                             Bellis integrifolia
                                             Bellis microcephala
                                                   [Bellis annua subsp. microcephala]
                                             Bellis perennis
                                             Bellis prostrata
                                                   [Bellis radicans]
                                             Bellis rotundifolia
                                             Bellis sylvestris
                                               Bellis sylvestris subsp. pappulosa
                                                     [Bellis pappulosa]
                                     Bellium
                                             Bellium minutum
                                     Benitoa
                                             Benitoa occidentalis
                                                   [Haplopappus occidentalis]
                                                   [Lessingia occidentalis]
                                     Berardia
                                             Berardia lanuginosa
                                     Berkheya
                                             Berkheya barbata
                                             Berkheya bipinnatifida
                                               Berkheya bipinnatifida subsp. echinopsoides
                                             Berkheya carlinopsis
                                               Berkheya carlinopsis subsp. magalismontana
                                             Berkheya coddii
                                             Berkheya echinacea
                                               Berkheya echinacea subsp. echinacea
                                             Berkheya fruticosa
                                             Berkheya heterophylla
                                             Berkheya insignis
                                             Berkheya macrocephala
                                             Berkheya milleriana
                                             Berkheya multijuga
                                             Berkheya nivea
                                             Berkheya onopordifolia
                                             Berkheya pinnatifida
                                             Berkheya rigida
                                             Berkheya robusta
                                             Berkheya rosulata
                                             Berkheya setifera
                                             Berkheya spekeana
                                             Berkheya spinosissima
                                               Berkheya spinosissima subsp. namaensis
                                               Berkheya spinosissima subsp. spinosissima
                                             Berkheya zeyheri
                                               Berkheya zeyheri subsp. rehmannii
                                               Berkheya zeyheri subsp. zeyheri
                                     Berlandiera
                                             Berlandiera betonicifolia
                                             Berlandiera lyrata
                                               Berlandiera lyrata var. lyrata
                                             Berlandiera macrophylla
                                                   [Berlandiera lyrata var. macrophylla]
                                             Berlandiera monocephala
                                                   [Berlandiera lyrata var. monocephala]
                                             Berlandiera pumila
                                                   [Berlandiera dealbata]
                                                   [Berlandiera tomentosa]
                                             Berlandiera subacaulis
                                             Berlandiera texana
                                     Berthelotia
                                     Bezanilla
                                     Bidens
                                             Bidens acrifolia
                                             Bidens aequisquama
                                             Bidens alba
                                                   [Bidens inermis]
                                                   [Bidens odorata var. chilpancingensis]
                                                   [Bidens odorata var. oaxacensis]
                                                   [Bidens odorata var. rosea]
                                               Bidens alba var. radiata
                                                     [Bidens decumbens]
                                                     [Bidens pilosa var. radiata]
                                             Bidens amplectens
                                             Bidens amplissima
                                             Bidens andicola
                                             Bidens angustissima
                                             Bidens anthemoides
                                                   [Bidens alpina]
                                                   [Bidens purpusorum]
                                                   [Bidens sarmentosa]
                                             Bidens aoraiensis
                                             Bidens aristosa
                                                   [Bidens aristosa var. mutica]
                                                   [Coreopsis aristosa]
                                             Bidens aurea
                                                   [Bidens aurea var. wrightii]
                                                   [Bidens ferulaefolia]
                                                   [Bidens ferulifolia]
                                                   [Bidens procera]
                                             Bidens beckii
                                                   [Megalodonta beckii var. hendersonii]
                                                   [Megalodonta beckii var. oregonensis]
                                                   [Megalodonta beckii]
                                             Bidens bicolor
                                             Bidens bidentoides
                                                   [Bidens mariana]
                                             Bidens bigelovii
                                               Bidens bigelovii var. angustiloba
                                             Bidens bipinnata
                                             Bidens biternata
                                             Bidens brandegeei
                                             Bidens cabopulmensis
                                             Bidens campylotheca
                                               Bidens campylotheca subsp. campylotheca
                                                     [Bidens magnidisca]
                                             Bidens cernua
                                                   [Bidens cernua var. cernua]
                                                   [Bidens cusickii]
                                                   [Bidens dentata]
                                                   [Bidens filamentosa]
                                                   [Bidens glaucescens]
                                                   [Bidens kelloggii]
                                                   [Bidens lonchophylla]
                                             Bidens chiapensis
                                             Bidens chrysanthemifolia
                                             Bidens conjuncta
                                             Bidens connata
                                                   [Bidens connata var. gracilipes]
                                                   [Bidens connata var. petiolata]
                                             Bidens cornuta
                                             Bidens cosmoides
                                             Bidens cynapiifolia
                                             Bidens discoidea
                                             Bidens diversa
                                               Bidens diversa subsp. filiformis
                                                     [Bidens filiformis]
                                             Bidens elliotii
                                             Bidens esmartinezii
                                             Bidens forbesii
                                               Bidens forbesii subsp. forbesii
                                                     [Bidens asymmetrica var. subocculta]
                                             Bidens frondosa
                                                   [Bidens frondosa var. anomala]
                                               Bidens frondosa var. frondosa
                                             Bidens gentryi
                                             Bidens hassleriana
                                                   [Bidens riedelii var. hassleriana]
                                             Bidens heterosperma
                                             Bidens hillebrandiana
                                             Bidens hintonii
                                                   [Coreocarpus hintonii]
                                             Bidens holwayi
                                             Bidens humilis
                                             Bidens hyperborea
                                                   [Bidens colpophila]
                                             Bidens involucrata
                                             Bidens laevis
                                                   [Bidens chrysanthemoides]
                                                   [Bidens expansa]
                                                   [Bidens lugens]
                                                   [Bidens nashii]
                                                   [Helianthus laevis]
                                                   [Heliopsis laevis]
                                             Bidens lantanoides
                                             Bidens lemmonii
                                             Bidens leptocephala
                                                   [Bidens leptocephala var. hammerlyae]
                                               Bidens leptocephala var. leptocephala
                                             Bidens leucantha
                                             Bidens leucanthema
                                                   [Bidens leucantha]
                                             Bidens longistyla
                                                   [Bidens carpodonta]
                                             Bidens macrocarpa
                                             Bidens mannii
                                                   [Verbesina monticola]
                                             Bidens mauiensis
                                                   [Bidens awaluana]
                                             Bidens menziesii
                                               Bidens menziesii subsp. menziesii
                                             Bidens mexicana
                                             Bidens micrantha
                                               Bidens micrantha subsp. ctenophylla
                                                     [Bidens schizoglossa]
                                               Bidens micrantha subsp. micrantha
                                             Bidens minensis
                                             Bidens mitis
                                             Bidens mollifolia
                                             Bidens molokaiensis
                                             Bidens nudata
                                             Bidens ocellatus
                                             Bidens odorata
                                               Bidens odorata var. calcicola
                                             Bidens oligantha
                                             Bidens oligoflora
                                             Bidens ostruthioides
                                             Bidens pilosa
                                                   [Bidens californica]
                                                   [Bidens leucantha var. pilosa]
                                                   [Bidens leucanthema var. pilosa]
                                                   [Bidens odorata var. odorata]
                                                   [Bidens pilosa var. bimucronata]
                                                   [Bidens pilosa var. calcicola]
                                                   [Bidens pilosa var. pilosa]
                                                   [Bidens pinnata]
                                                   [Kerneria pilosa]
                                               Bidens pilosa var. minor
                                               Bidens pilosa var. pilosa
                                             Bidens polylepis
                                             Bidens populifolia
                                             Bidens pringlei
                                             Bidens reptans
                                                   [Bidens boquetiensis]
                                                   [Bidens reptans var. urbanii]
                                                   [Bidens squarrosa var. atrostriata]
                                                   [Bidens squarrosa var. indivisa]
                                                   [Bidens squarrosa var. tereticaulis]
                                             Bidens riedelii
                                             Bidens riparia
                                                   [Bidens refracta]
                                                   [Bidens riparia var. refracta]
                                             Bidens rostrata
                                             Bidens rubicundula
                                                   [Bidens squarrosa var. squarrosa]
                                                   [Bidens squarrosa]
                                             Bidens sambucifolia
                                             Bidens sandvicensis
                                             Bidens sandwicensis
                                               Bidens sandwicensis subsp. sandwicensis
                                                     [Bidens micranthoides]
                                             Bidens schaffneri
                                               Bidens schaffneri var. wrightii
                                                     [Bidens heterophylla var. wrightii]
                                             Bidens serrulata
                                             Bidens sharpii
                                             Bidens socorrensis
                                             Bidens speciosa
                                             Bidens subspiralis
                                             Bidens tenuisecta
                                                   [Bidens cognata]
                                             Bidens torta
                                                   [Bidens fulvescens]
                                                   [Bidens waianensis]
                                             Bidens trichosperma
                                                   [Bidens coronata var. tenuiloba]
                                                   [Bidens coronata]
                                                   [Bidens trichosperma var. tenuiloba]
                                             Bidens tripartita
                                                   [Bidens comosa var. acuta]
                                                   [Bidens connata var. comosa]
                                                   [Bidens connata var. petiolata]
                                               Bidens tripartita subsp. comosa
                                                     [Bidens comosa]
                                             Bidens triplinervia
                                                   [Bidens geraniifolia]
                                               Bidens triplinervia var. macrantha
                                             Bidens valida
                                             Bidens vulgata
                                             Bidens xanti
                                                   [Bidens coreocarpoides]
                                                   [Bidens xantiana]
                                                   [Heterosperma brandegeei]
                                                   [Heterosperma xanti var. carterae]
                                                   [Heterosperma xanti var. xanti]
                                                   [Heterosperma xanti]
                                     Bigelovia
                                             Bigelovia greenei
                                     Bigelowia
                                             Bigelowia nudata
                                                   [Bigelovia nudata]
                                                   [Chondrophora nudata]
                                             Bigelowia nuttallii
                                             Bigelowia veneta
                                                   [Bigelovia veneta]
                                     Biolettia
                                     Blainvillea
                                             Blainvillea acmella
                                                   [Spilanthes acmella]
                                             Blainvillea dichotoma
                                             Blainvillea gayana
                                     Blennosperma
                                             Blennosperma bakeri
                                             Blennosperma nanum
                                                   [Blennosperma californicum]
                                                   [Chrysanthemum nanum]
                                                   [Coniothele californica]
                                               Blennosperma nanum var. nanum
                                                     [Blennosperma californicum]
                                               Blennosperma nanum var. robustum
                                     Blennospora
                                             Blennospora drummondii
                                                   [Calocephalus drummondii]
                                     Blepharipappus
                                             Blepharipappus scaber
                                                   [Blepharipappus laevis]
                                                   [Blepharipappus scaber subsp. laevis]
                                                   [Blepharipappus scaber subsp. scaber]
                                                   [Blepharipappus scaber var. laevis]
                                                   [Ptilonella scabra]
                                               Blepharipappus scaber var. scaber
                                     Blepharispermum
                                             Blepharispermum hirtum
                                             Blepharispermum pubescens
                                             Blepharispermum zanguebaricum
                                     Blepharizonia
                                             Blepharizonia laxa
                                                   [Blepharizonia plumosa subsp. viscida]
                                             Blepharizonia plumosa
                                                   [Blepharizonia plumosa subsp. plumosa]
                                                   [Calycadenia plumosa]
                                                   [Hemizonia plumosa]
                                     Blumea
                                             Blumea aromatica
                                             Blumea axillaris
                                             Blumea balsamifera
                                             Blumea chinensis
                                             Blumea densiflora
                                             Blumea fistulosa
                                             Blumea hookeri
                                             Blumea lacera
                                                   [Blumea lacera var. glandulosa]
                                                   [Blumea perrottetiana]
                                             Blumea oxyodonta
                                             Blumea riparia
                                             Blumea sinuata
                                                   [Blumea laciniata]
                                             Blumea stenophylla
                                             Blumea veronicifolia
                                             Blumea viscosa
                                     Blumeopsis
                                     Boebera
                                     Boeberastrum
                                             Boeberastrum anthemidifolium
                                                   [Dyssodia anthemidifolia]
                                             Boeberastrum littoralis
                                                   [Dyssodia littoralis]
                                     Bolanosa
                                             Bolanosa coulteri
                                                   [Vernonia coulteri]
                                     Boltonia
                                             Boltonia apalachicolensis
                                             Boltonia asteroides
                                               Boltonia asteroides var. latisquama
                                                     [Boltonia latisquama]
                                               Boltonia asteroides var. recognita
                                                     [Boltonia recognita]
                                             Boltonia caroliniana
                                                   [Chrysanthemum carolinianum]
                                             Boltonia decurrens
                                             Boltonia diffusa
                                     Bombycilaena
                                             Bombycilaena discolor
                                     Borrichia
                                             Borrichia arborescens
                                             Borrichia frutescens
                                     Bothriocline
                                             Bothriocline fusca
                                             Bothriocline inyangana
                                             Bothriocline laxa
                                             Bothriocline longipes
                                                   [Erlangea tomentosa]
                                             Bothriocline milanjiensis
                                     Brachyactis
                                             Brachyactis ciliata
                                     Brachyclados
                                             Brachyclados caespitosus
                                     Brachyglottis
                                             Brachyglottis greyi
                                             Brachyglottis lagopus
                                                   [Senecio lagopus]
                                             Brachyglottis perdicioides
                                                   [Senecio perdicioides]
                                             Brachyglottis repanda
                                                   [Brachyglottis rangiora]
                                             Brachyglottis rotundifolia
                                                   [Senecio rotundifolius]
                                     Brachylaena
                                             Brachylaena discolor
                                               Brachylaena discolor var. rotundata
                                                     [Brachylaena rotundata]
                                             Brachylaena glabra
                                             Brachylaena huillensis
                                             Brachylaena ilicifolia
                                             Brachylaena merana
                                             Brachylaena neriifolia
                                     Brachyris
                                     Brachyscome
                                             Brachyscome ciliaris
                                             Brachyscome melanocarpa
                                             Brachyscome multifida
                                     Bradburia
                                             Bradburia hirtella
                                                   [Chrysopsis texana]
                                                   [Mauchia hirtella]
                                             Bradburia pilosa
                                                   [Chrysopsis pilosa]
                                                   [Heterotheca pilosa]
                                     Brauneria
                                     Breea
                                     Brickellia
                                             Brickellia adenolepis
                                                   [Kuhnia adenolepis]
                                             Brickellia amplexicaulis
                                             Brickellia argyrolepis
                                                   [Brickellia adenocarpa var. glandulipes]
                                                   [Brickellia adenocarpa]
                                                   [Brickellia guatemalensis]
                                             Brickellia atractyloides
                                                   [Coleosanthus atractyloides]
                                                   [Coleosanthus venulosus]
                                               Brickellia atractyloides var. arguta
                                                     [Brickellia arguta var. arguta]
                                                     [Brickellia arguta]
                                                     [Coleosanthus argutus]
                                               Brickellia atractyloides var. atractyloides
                                               Brickellia atractyloides var. odontolepis
                                                     [Brickellia arguta var. odontolepis]
                                             Brickellia baccharidea
                                             Brickellia betonicifolia
                                                   [Brickellia subsessilis]
                                             Brickellia brachyphylla
                                                   [Coleosanthus brachyphyllus]
                                             Brickellia brandegeei
                                                   [Brickellia cayucensis]
                                                   [Brickellia macromera]
                                                   [Brickellia undonis]
                                             Brickellia californica
                                                   [Brickellia californica var. californica]
                                                   [Brickellia californica var. jepsonii]
                                                   [Brickellia californica var. reniformis]
                                                   [Brickellia californica var. tenera]
                                                   [Brickellia reniformis]
                                                   [Brickellia tenera]
                                                   [Brickellia wrightii var. tenera]
                                                   [Bulbostylis californica]
                                                   [Coleosanthus albicaulis]
                                                   [Coleosanthus californicus var. tener]
                                                   [Coleosanthus californicus]
                                                   [Coleosanthus tener]
                                                   [Coleosanthus wrightii]
                                             Brickellia cardiophylla
                                             Brickellia cavanillesii
                                             Brickellia chenopodina
                                             Brickellia cordifolia
                                             Brickellia coulteri
                                                   [Coleosanthus coulteri]
                                               Brickellia coulteri var. adenopoda
                                                     [Brickellia coulteri var. megalodonta]
                                               Brickellia coulteri var. coulteri
                                             Brickellia cuspidata
                                             Brickellia cylindracea
                                             Brickellia dentata
                                                   [Brickellia riddellii]
                                             Brickellia desertorum
                                                   [Brickellia californica var. desertorum]
                                                   [Coleosanthus desertorum]
                                             Brickellia diffusa
                                                   [Eupatorium aromaticum]
                                             Brickellia eupatorioides
                                                   [Kuhnia eupatorioides]
                                                   [Kuhnia glutinosa]
                                               Brickellia eupatorioides var. chlorolepis
                                                     [Brickellia chlorolepis]
                                                     [Brickellia rosmarinifolia]
                                                     [Brickellia schaffneri]
                                                     [Kuhnia chlorolepis]
                                                     [Kuhnia rosmarinifolia]
                                               Brickellia eupatorioides var. corymbulosa
                                                     [Kuhnia eupatorioides var. corymbulosa]
                                               Brickellia eupatorioides var. eupatorioides
                                               Brickellia eupatorioides var. gracillima
                                             Brickellia filipes
                                             Brickellia floribunda
                                             Brickellia frutescens
                                                   [Coleosanthus frutescens]
                                             Brickellia glabrata
                                                   [Brickellia brachiata var. glabrata]
                                             Brickellia glandulosa
                                             Brickellia glomerata
                                             Brickellia glutinosa
                                             Brickellia grandiflora
                                                   [Brickellia grandiflora var. minor]
                                                   [Brickellia grandiflora var. petiolaris]
                                                   [Brickellia umbellata]
                                                   [Coleosanthus congestus]
                                                   [Coleosanthus gracilipes]
                                                   [Coleosanthus grandiflorus]
                                                   [Coleosanthus umbellatus]
                                                   [Eupatorium grandiflorum]
                                               Brickellia grandiflora var. grandiflora
                                             Brickellia greenei
                                                   [Coleosanthus greenei]
                                             Brickellia hastata
                                             Brickellia hymenochlaena
                                             Brickellia incana
                                                   [Coleosanthus incanus]
                                             Brickellia jaliscensis
                                             Brickellia knappiana
                                                   [Coleosanthus knappianus]
                                             Brickellia laciniata
                                             Brickellia laxiflora
                                                   [Barroetea laxiflora]
                                             Brickellia lemmonii
                                                   [Coleosanthus wootonii]
                                               Brickellia lemmonii var. conduplicata
                                                     [Brickellia conduplicata]
                                               Brickellia lemmonii var. lemmonii
                                             Brickellia longifolia
                                                   [Coleosanthus longifolius]
                                               Brickellia longifolia var. longifolia
                                               Brickellia longifolia var. multiflora
                                                     [Brickellia multiflora]
                                                     [Coleosanthus multiflorus]
                                             Brickellia macranthra
                                                   [Brickellia eupatorioides var. texana]
                                             Brickellia megaphylla
                                             Brickellia microphylla
                                                   [Brickellia cedrosensis]
                                                   [Brickellia microphylla var. watsonii]
                                                   [Brickellia watsonii]
                                                   [Bulbostylis microphylla]
                                                   [Coleosanthus microphyllus]
                                               Brickellia microphylla subsp. microphylla
                                               Brickellia microphylla var. microphylla
                                                     [Brickellia grayana]
                                                     [Brickellia microphylla subsp. microphylla]
                                                     [Brickellia microphylla var. watsonii]
                                                     [Brickellia watsonii]
                                                     [Bulbostylis microphylla]
                                                     [Coleosanthus microphyllus]
                                                     [Coleosanthus watsonii]
                                               Brickellia microphylla var. scabra
                                                     [Brickellia microphylla subsp. scabra]
                                                     [Brickellia scabra]
                                                     [Coleosanthus scaber]
                                             Brickellia monocephala
                                             Brickellia nesomii
                                             Brickellia nevinii
                                                   [Coleosanthus nevinii]
                                             Brickellia nutans
                                             Brickellia oblongifolia
                                                   [Brickellia mohavensis]
                                               Brickellia oblongifolia var. linifolia
                                                     [Brickellia linifolia]
                                                     [Brickellia oblongifolia subsp. linifolia]
                                                     [Coleosanthus linifolius]
                                                     [Coleosanthus oblongifolius var. linifolius]
                                               Brickellia oblongifolia var. oblongifolia
                                             Brickellia oligadenia
                                                   [Brickellia squarrosa var. oligadena]
                                             Brickellia oliganthes
                                                   [Brickellia kellermanii]
                                                   [Brickellia verbenacea]
                                             Brickellia oreithales
                                             Brickellia palmeri
                                             Brickellia paniculata
                                                   [Brickellia hartwegii]
                                                   [Brickellia hebecarpa]
                                             Brickellia parvula
                                             Brickellia pavonii
                                                   [Barroetea sessilifolia]
                                             Brickellia pedunculosa
                                             Brickellia pendula
                                                   [Brickellia lancifolia]
                                             Brickellia peninsularis
                                                   [Brickellia peninsularis var. amphithalassa]
                                               Brickellia peninsularis var. peninsularis
                                             Brickellia pringlei
                                             Brickellia problematica
                                                   [Barroetea glutinosa]
                                             Brickellia rhomboidea
                                             Brickellia robinsoniana
                                             Brickellia rusbyi
                                             Brickellia scoparia
                                             Brickellia secundiflora
                                                   [Brickellia saltillensis]
                                               Brickellia secundiflora var. monticola
                                               Brickellia secundiflora var. nepetifolia
                                               Brickellia secundiflora var. parryi
                                               Brickellia secundiflora var. secundiflora
                                             Brickellia seemannii
                                             Brickellia simplex
                                             Brickellia sonorana
                                                   [Barroetea sonorana]
                                             Brickellia spinulosa
                                                   [Brickellia spinulosa var. asperata]
                                             Brickellia squarrosa
                                             Brickellia subuligera
                                                   [Barroetea setosa]
                                                   [Barroetea subuligera var. latisquama]
                                                   [Barroetea subuligera]
                                             Brickellia urolepis
                                             Brickellia venosa
                                             Brickellia vernicosa
                                             Brickellia veronicifolia
                                                   [Brickellia petrophila]
                                                   [Brickellia veronicifolia var. petrophila]
                                             Brickellia vollmeri
                                             Brickellia wislizeni
                                             Brickellia wrightii
                                     Brickelliastrum
                                             Brickelliastrum fendleri
                                                   [Brickellia ambigens]
                                                   [Brickellia fendleri]
                                                   [Coleosanthus ambigens]
                                                   [Coleosanthus modestus]
                                     Brintonia
                                             Brintonia discoidea
                                                   [Solidago discoidea]
                                     Bucklandia
                                     Buphthalmum
                                             Buphthalmum salicifolium
                                     Burrielia
                                             Burrielia chrysostoma
                                     Cacalia
                                             Cacalia diversifolia
                                             Cacalia peltata
                                             Cacalia reniformis
                                             Cacalia suaveolens
                                             Cacalia tuberosa
                                     Cacaliopsis
                                             Cacaliopsis nardosmia
                                                   [Cacalia nardosmia]
                                                   [Luina nardosmia]
                                     Caenotus
                                     Calais
                                     Calanticaria
                                             Calanticaria brevifolia
                                             Calanticaria greggii
                                                   [Viguiera greggii]
                                     Calcitrapa
                                     Calea
                                             Calea annua
                                             Calea bakeriana
                                                   [Calea bakeriana var. volubilis]
                                             Calea berteriana
                                             Calea crocinervosa
                                             Calea formosa
                                             Calea hassleriana
                                             Calea jamaicensis
                                                   [Calea pittieri]
                                             Calea kingii
                                             Calea longipedicellata
                                             Calea megacephala
                                             Calea myrtifolia
                                             Calea perijaensis
                                             Calea rhombifolia
                                             Calea rojasiana
                                             Calea rupicola
                                             Calea solidaginea
                                             Calea ternifolia
                                                   [Calea pringlei var. rubida]
                                                   [Calea pringlei]
                                                   [Calea zacatechichi]
                                               Calea ternifolia var. hypoleuca
                                                     [Calea hypoleuca]
                                             Calea trichotoma
                                             Calea uniflora
                                             Calea urticifolia
                                     Calendula
                                             Calendula arvensis
                                                   [Calendula algeriensis]
                                             Calendula officinalis
                                             Calendula stellata
                                             Calendula suffruticosa
                                               Calendula suffruticosa subsp. tlemcensis
                                             Calendula tripterocarpa
                                     Calliachyris
                                     Callichroa
                                     Calliopsis
                                     Callistephus
                                             Callistephus chinensis
                                     Calocephalus
                                             Calocephalus brownii
                                                   [Leucophyta brownii]
                                             Calocephalus francisii
                                             Calocephalus knappii
                                             Calocephalus multiflorus
                                     Calomeria
                                             Calomeria amaranthoides
                                                   [Humea elegans]
                                     Calotis
                                             Calotis cuneifolia
                                             Calotis hispidula
                                             Calotis lappulacea
                                             Calotis multicaulis
                                     Calycadenia
                                             Calycadenia fremontii
                                                   [Calycadenia ciliosa f. alba]
                                                   [Calycadenia ciliosa]
                                                   [Calycadenia elegans]
                                                   [Hemizonia fremontii]
                                             Calycadenia hooveri
                                             Calycadenia micrantha
                                                   [Calycadenia truncata subsp. microcephala]
                                             Calycadenia mollis
                                                   [Calycadenia mollis f. aurea]
                                                   [Calycadenia mollis f. rosea]
                                                   [Hemizonia mollis]
                                             Calycadenia multiglandulosa
                                                   [Calycadenia bicolor]
                                                   [Calycadenia cephalotes]
                                                   [Calycadenia hispida subsp. reducta]
                                                   [Calycadenia hispida]
                                                   [Calycadenia multiglandulosa subsp. bicolor]
                                                   [Calycadenia multiglandulosa subsp. cephalotes]
                                                   [Calycadenia multiglandulosa subsp. robusta]
                                                   [Calycadenia multiglandulosa var. cephalotes]
                                                   [Eupatorium bupleurifolium var. ensifolium]
                                                   [Hemizonia hispida]
                                                   [Hemizonia multiglandulosa]
                                             Calycadenia oppositifolia
                                                   [Hemizonia oppositifolia]
                                             Calycadenia pauciflora
                                                   [Calycadenia ramulosa]
                                                   [Hemizonia pauciflora]
                                             Calycadenia spicata
                                                   [Hemizonia spicata]
                                             Calycadenia truncata
                                                   [Calycadenia truncata subsp. microcephala]
                                                   [Calycadenia truncata subsp. scabrella]
                                                   [Calycadenia truncata subsp. truncata]
                                                   [Calycadenia truncata var. truncata]
                                                   [Hemizonia truncata]
                                             Calycadenia villosa
                                     Calycoseris
                                             Calycoseris parryi
                                             Calycoseris wrightii
                                                   [Calycoseris wrightii var. californica]
                                     Calyptocarpus
                                             Calyptocarpus vialis
                                             Calyptocarpus wendlandii
                                     Campovassouria
                                             Campovassouria cruciata
                                     Campuloclinium
                                             Campuloclinium macrocephalum
                                                   [Eupatorium macrocephalum]
                                     Canadanthus
                                             Canadanthus modestus
                                                   [Aster modestus]
                                     Caputia
                                             Caputia tomentosa
                                                   [Senecio haworthii]
                                     Carbeni
                                     Carduncellus
                                             Carduncellus caeruleus
                                                   [Carthamus caeruleus]
                                             Carduncellus calvus
                                                   [Carthamus calvus]
                                             Carduncellus duvauxii
                                             Carduncellus mitissimus
                                             Carduncellus pectinatus
                                                   [Carthamus pectinatus]
                                             Carduncellus pinnatus
                                             Carduncellus pomelianus
                                             Carduncellus rhiphaeus
                                                   [Carthamus rhiphaeus]
                              Carduoideae
                                     Chamaeleon
                                             Chamaeleon gummifer
                                                   [Atractylis gummifera]
                                             Chamaeleon macrophyllus
                                     Hemisteptia
                                             Hemisteptia lyrata
                                     Leuzea
                                             Leuzea rhapontica
                                               Leuzea rhapontica subsp. rhapontica
                                                     [Centaurea rhapontica]
                                     Notobasis
                                             Notobasis syriaca
                                     Phonus
                                             Phonus arborescens
                                                   [Carthamus arborescens]
                                     Picnomon
                                             Picnomon acarna
                                     Carduus
                                             Carduus acanthoides
                                               Carduus acanthoides subsp. acanthoides
                                             Carduus argemone
                                             Carduus brownii
                                             Carduus clavulatus
                                             Carduus collinus
                                             Carduus crispus
                                               Carduus crispus subsp. crispus
                                                     [Carduus agrestis]
                                             Carduus defloratus
                                             Carduus leptocladus
                                             Carduus macrocephalus
                                             Carduus martinezii
                                             Carduus myriacanthus
                                             Carduus nutans
                                                   [Carduus nutans subsp. leiophyllus]
                                                   [Carduus nutans subsp. nutans]
                                                   [Carduus nutans var. leiophyllus]
                                                   [Carduus nutans var. nutans]
                                               Carduus nutans subsp. leiophyllus
                                             Carduus nyassanus
                                               Carduus nyassanus subsp. kikuyorum
                                             Carduus personata
                                               Carduus personata subsp. personata
                                                     [Carduus personatus]
                                             Carduus platypus
                                               Carduus platypus subsp. granatensis
                                                     [Carduus nutans subsp. granatensis]
                                             Carduus pycnocephalus
                                               Carduus pycnocephalus subsp. cinereus
                                                     [Carduus cinereus]
                                               Carduus pycnocephalus subsp. pycnocephalus
                                             Carduus spachianus
                                               Carduus spachianus subsp. megalatlanticus
                                               Carduus spachianus subsp. spachianus
                                             Carduus tenuiflorus
                                                   [Carduus pycnocephalus var. tenuiflorus]
                                     Carlina
                                             Carlina acanthifolia
                                             Carlina acaulis
                                             Carlina corymbosa
                                             Carlina graeca
                                             Carlina lanata
                                             Carlina sicula
                                             Carlina vulgaris
                                     Carlquistia
                                             Carlquistia muirii
                                                   [Raillardella muirii]
                                                   [Raillardiopsis muirii]
                                     Carminatia
                                             Carminatia alvarezii
                                                   [Carminatia anomala]
                                             Carminatia recondita
                                             Carminatia tenuiflora
                                     Carpesium
                                             Carpesium abrotanoides
                                             Carpesium cernuum
                                             Carpesium divaricatum
                                             Carpesium lipskyi
                                             Carpesium longifolium
                                             Carpesium minus
                                             Carpesium scapiforme
                                             Carpesium triste
                                     Carphephorus
                                             Carphephorus bellidifolius
                                             Carphephorus carnosus
                                             Carphephorus corymbosus
                                             Carphephorus odoratissimus
                                                   [Trilisa odoratissima]
                                             Carphephorus paniculatus
                                                   [Trilisa paniculata]
                                             Carphephorus pseudoliatris
                                             Carphephorus tomentosus
                                     Carphochaete
                                             Carphochaete bigelovii
                                             Carphochaete grahamii
                                             Carphochaete macrocephala
                                                   [Revealia macrocephala]
                                                   [Revealia stevioides]
                                             Carphochaete pringlei
                                                   [Stevia pringlei]
                                             Carphochaete schaffneri
                                             Carphochaete wislizenii
                                     Carterothamnus
                                             Carterothamnus anomalochaeta
                                                   [Hofmeisteria anomalochaeta]
                                     Carthamus
                                             Carthamus creticus
                                                   [Carthamus baeticus]
                                                   [Carthamus lanatus subsp. baeticus]
                                                   [Carthamus lanatus subsp. creticus]
                                                   [Kentrophyllum baeticum]
                                             Carthamus dentatus
                                             Carthamus lanatus
                                                   [Carthamus lanatus subsp. lanatus]
                                                   [Kentrophyllum lanatum]
                                             Carthamus leucocaulos
                                             Carthamus multifidus
                                             Carthamus nitidus
                                             Carthamus oxyacantha
                                             Carthamus oxyacanthus
                                                   [Carthamus oxyacantha]
                                             Carthamus tinctorius
                                     Cassinia
                                             Cassinia aculeata
                                             Cassinia fulvida
                                             Cassinia laevis
                                             Cassinia leptophylla
                                             Cassinia quinquefaria
                                             Cassinia subtropica
                                             Cassinia tenuifolia
                                             Cassinia vauvilliersii
                                     Catananche
                                             Catananche arenaria
                                             Catananche caerulea
                                             Catananche caespitosa
                                             Catananche lutea
                                             Catananche montana
                                     Celmisia
                                             Celmisia asteliifolia
                                             Celmisia coriacea
                                             Celmisia glandulosa
                                             Celmisia petiolata
                                             Celmisia ramulosa
                                     Centaurea
                                             Centaurea acaulis
                                             Centaurea alba
                                             Centaurea arrigonii
                                             Centaurea aspera
                                             Centaurea babylonica
                                             Centaurea behen
                                                   [Centaurea brachyptera]
                                             Centaurea benedicta
                                                   [Carbeni benedicta]
                                                   [Cnicus benedictus]
                                             Centaurea biebersteinii
                                             Centaurea boissieri
                                             Centaurea calcitrapa
                                               Centaurea calcitrapa subsp. calcitrapa
                                                     [Rhaponticum calcitrapa]
                                             Centaurea cephalariifolia
                                                   [Centaurea scabiosa subsp. cephalariifolia]
                                             Centaurea cineraria
                                               Centaurea cineraria subsp. cineraria
                                                     [Centaurea candidissima]
                                             Centaurea citricolor
                                             Centaurea clementei
                                             Centaurea cyanus
                                                   [Centaurea cyanus var. denudata]
                                                   [Cyanus segetum]
                                                   [Leucacantha cyanus]
                                             Centaurea dealbata
                                             Centaurea debeauxii
                                               Centaurea debeauxii subsp. grandiflora
                                                     [Centaurea pratensis]
                                             Centaurea decipiens
                                               Centaurea decipiens subsp. decipiens
                                                     [Centaurea moncktonii]
                                               Centaurea decipiens subsp. microptilon
                                                     [Centaurea jacea subsp. microptilon]
                                             Centaurea depressa
                                             Centaurea diffusa
                                                   [Acosta diffusa]
                                             Centaurea diluta
                                               Centaurea diluta subsp. algeriensis
                                             Centaurea eriophora
                                             Centaurea exarata
                                             Centaurea fragilis
                                             Centaurea glomerata
                                             Centaurea gymnocarpa
                                             Centaurea hyssopifolia
                                             Centaurea iberica
                                                   [Calcitrapa iberica]
                                                   [Leucantha iberica]
                                               Centaurea iberica subsp. holzmanniana
                                                     [Centaurea holzmanniana]
                                             Centaurea imperialis
                                             Centaurea infestans
                                             Centaurea involucrata
                                             Centaurea jacea
                                                   [Centaurea X moncktonii]
                                                   [Centaurea X pratensis]
                                                   [Centaurea moncktonii]
                                                   [Centaurea]
                                               Centaurea jacea nothosubsp. pratensis
                                                     [Centaurea × moncktonii]
                                                     [Centaurea × pratensis]
                                               Centaurea jacea subsp. angustifolia
                                                     [Centaurea pannonica]
                                               Centaurea jacea subsp. jacea
                                                     [Centaurea amara]
                                               Centaurea jacea subsp. nigra
                                                     [Centaurea nigra]
                                             Centaurea kleinii
                                             Centaurea macrocephala
                                             Centaurea melitensis
                                             Centaurea montana
                                             Centaurea monticola
                                             Centaurea nana
                                             Centaurea napifolia
                                             Centaurea nervosa
                                             Centaurea nigrescens
                                               Centaurea nigrescens subsp. vochinensis
                                                     [Centaurea vochinensis]
                                             Centaurea ornata
                                             Centaurea pallescens
                                             Centaurea parlatoris
                                             Centaurea parviflora
                                             Centaurea perrottettii
                                             Centaurea phaeolepis
                                             Centaurea phrygia
                                               Centaurea phrygia subsp. pseudophrygia
                                                     [Centaurea pseudophrygia]
                                             Centaurea polypodiifolia
                                                   [Centaurea pseudobehen]
                                             Centaurea pouzinii
                                                   [Centaurea X pouzinii]
                                                   [Centaurea]
                                             Centaurea praecox
                                             Centaurea pratensis
                                             Centaurea procurrens
                                             Centaurea prolongi
                                             Centaurea pubescens
                                               Centaurea pubescens subsp. pubescens
                                             Centaurea pullata
                                             Centaurea pungens
                                             Centaurea ragusina
                                             Centaurea raphanina
                                               Centaurea raphanina subsp. mixta
                                             Centaurea resupinata
                                               Centaurea resupinata subsp. resupinata
                                                     [Centaurea resupinata subsp. lagascae]
                                             Centaurea ropalon
                                             Centaurea scabiosa
                                             Centaurea sicula
                                               Centaurea sicula subsp. sicula
                                                     [Centaurea nicaeensis]
                                             Centaurea solstitialis
                                             Centaurea sphaerocephala
                                             Centaurea sterilis
                                             Centaurea stoebe
                                                   [Centaurea stoebe var. micranthos]
                                               Centaurea stoebe subsp. australis
                                                     [Centaurea maculosa]
                                                     [Centaurea stoebe subsp. micranthos]
                                               Centaurea stoebe subsp. micranthos
                                                     [Centaurea maculosa]
                                               Centaurea stoebe subsp. stoebe
                                                     [Centaurea biebersteinii]
                                                     [Centaurea maculosa]
                                             Centaurea sulphurea
                                             Centaurea thuillieri
                                                   [Centaurea jacea subsp. pratensis]
                                             Centaurea tougourensis
                                             Centaurea trichocephala
                                             Centaurea triumfettii
                                             Centaurea uniflora
                                             Centaurea virgata
                                               Centaurea virgata subsp. squarrosa
                                                     [Centaurea squarrosa]
                                                     [Centaurea virgata var. squarrosa]
                                             Centaurea zuccariniana
                                     Centauropsis
                                             Centauropsis antanossi
                                             Centauropsis rhaponticoides
                                     Centipeda
                                             Centipeda minima
                                             Centipeda thespidioides
                                     Centratherum
                                             Centratherum camporum
                                             Centratherum punctatum
                                                   [Centratherum intermedium]
                                                   [Centratherum muticum]
                                                   [Centratherum violaceum]
                                     Centromadia
                                             Centromadia fitchii
                                                   [Hemizonia fitchii]
                                             Centromadia parryi
                                                   [Hemizonia parryi]
                                               Centromadia parryi subsp. australis
                                                     [Centromadia parryi var. australis]
                                                     [Hemizonia australis]
                                                     [Hemizonia parryi subsp. australis]
                                               Centromadia parryi subsp. congdonii
                                                     [Centromadia pungens var. congdonii]
                                                     [Hemizonia congdonii]
                                                     [Hemizonia parryi subsp. congdonii]
                                                     [Hemizonia parryi var. congdonii]
                                               Centromadia parryi subsp. parryi
                                                     [Centromadia pungens var. parryi]
                                                     [Hemizonia parryi subsp. parryi]
                                                     [Hemizonia parryi]
                                                     [Hemizonia pungens var. parryi]
                                               Centromadia parryi subsp. rudis
                                                     [Centromadia rudis]
                                                     [Hemizonia parryi subsp. rudis]
                                             Centromadia perennis
                                                   [Hemizonia perennis]
                                             Centromadia pungens
                                                   [Hartmannia pungens]
                                                   [Hemizonia pungens]
                                               Centromadia pungens subsp. laevis
                                                     [Hemizonia laevis]
                                                     [Hemizonia pungens subsp. laevis]
                                               Centromadia pungens subsp. pungens
                                                     [Centromadia pungens subsp. maritima]
                                                     [Centromadia pungens subsp. septentrionalis]
                                                     [Centromadia pungens var. pungens]
                                                     [Hemizonia pungens subsp. interior]
                                                     [Hemizonia pungens subsp. maritima]
                                                     [Hemizonia pungens subsp. pungens]
                                                     [Hemizonia pungens subsp. septentrionalis]
                                                     [Hemizonia pungens var. pungens]
                                                     [Hemizonia pungens var. septentrionalis]
                                                     [Hemizonia pungens]
                                     Cephalipterum
                                             Cephalipterum drummondii
                                     Cephalobembix
                                     Cephalonoplos
                                     Cephalophora
                                     Chaenactis
                                             Chaenactis achilleifolia
                                             Chaenactis alpigena
                                             Chaenactis alpina
                                               Chaenactis alpina subsp. alpina
                                               Chaenactis alpina subsp. leucopsis
                                               Chaenactis alpina var. alpina
                                               Chaenactis alpina var. leucopsis
                                               Chaenactis alpina var. rubella
                                             Chaenactis angustifolia
                                             Chaenactis artemisiifolia
                                                   [Acarphaea artemisiifolia]
                                                   [Chaenactis artemisiaefolia]
                                             Chaenactis attenuata
                                             Chaenactis aurea
                                             Chaenactis brachiata
                                               Chaenactis brachiata var. brachiata
                                               Chaenactis brachiata var. stansburiana
                                             Chaenactis brachypappa
                                             Chaenactis carphoclinia
                                               Chaenactis carphoclinia var. carphoclinia
                                                     [Chaenactis carphoclinia var. attenuata]
                                               Chaenactis carphoclinia var. peirsonii
                                                     [Chaenactis peirsonii]
                                             Chaenactis cheilanthoides
                                             Chaenactis cusickii
                                             Chaenactis douglasii
                                                   [Chaenactis cinerea]
                                                   [Hymenopappus douglasii]
                                                   [Macrocarphus douglasii]
                                               Chaenactis douglasii var. achilleifolia
                                                     [Chaenactis achilleaefolia]
                                                     [Chaenactis achilleifolia]
                                                     [Chaenactis douglasii var. achilleaefolia]
                                               Chaenactis douglasii var. douglasii
                                                     [Chaenactis douglasii subsp. douglasii]
                                                     [Chaenactis douglasii var. rubricaulis]
                                                     [Chaenactis pumila]
                                                     [Chaenactis rubricaulis]
                                               Chaenactis douglasii var. montana
                                               Chaenactis douglasii var. rubricaulis
                                               Chaenactis douglasii var. alpina
                                               Chaenactis douglasii var. glandulosa
                                               Chaenactis douglasii var. nana
                                               Chaenactis douglasii var. ramosior
                                             Chaenactis evermannii
                                             Chaenactis floribunda
                                             Chaenactis fremontii
                                             Chaenactis glabriuscula
                                                   [Baeria curta]
                                                   [Chaenactis filifolia]
                                               Chaenactis glabriuscula var. denudata
                                               Chaenactis glabriuscula var. glabriuscula
                                                     [Chaenactis aurea]
                                                     [Chaenactis glabriuscula var. curta]
                                                     [Chaenactis glabriuscula var. gracilenta]
                                                     [Chaenactis glabriuscula var. tenuifolia]
                                               Chaenactis glabriuscula var. glabriuscula >
                                               Chaenactis glabriuscula var. heterocarpha
                                                     [Chaenactis gracilenta]
                                                     [Chaenactis tanacetifolia]
                                               Chaenactis glabriuscula var. lanosa
                                                     [Chaenactis denudata]
                                                     [Chaenactis lanosa var. denudata]
                                                     [Chaenactis lanosa]
                                               Chaenactis glabriuscula var. megacephala
                                                     [Chaenactis heterocarpha var. megacephala]
                                               Chaenactis glabriuscula var. orcuttiana
                                                     [Chaenactis tenuifolia var. orcuttiana]
                                               Chaenactis glabriuscula var. aurea
                                             Chaenactis gracilenta
                                             Chaenactis heterocarpha
                                               Chaenactis heterocarpha var. curta
                                               Chaenactis heterocarpha var. heterocarpha
                                               Chaenactis heterocarpha var. tanacetifolia
                                             Chaenactis humilis
                                             Chaenactis imbricata
                                             Chaenactis kyhosii
                                             Chaenactis lacera
                                             Chaenactis latifolia
                                             Chaenactis leucopsis
                                             Chaenactis macrantha
                                             Chaenactis mainsiana
                                             Chaenactis mexicana
                                             Chaenactis minuscula
                                             Chaenactis nevadensis
                                                   [Hymenopappus nevadensis]
                                               Chaenactis nevadensis var. mainsiana
                                               Chaenactis nevadensis var. nevadensis
                                             Chaenactis nevii
                                             Chaenactis orcuttiana
                                             Chaenactis paleolifera
                                             Chaenactis panamintensis
                                             Chaenactis parishii
                                             Chaenactis pedicularia
                                             Chaenactis peirsonii
                                             Chaenactis pumila
                                             Chaenactis ramosa
                                             Chaenactis rubella
                                             Chaenactis rubricaulis
                                             Chaenactis santolinoides
                                               Chaenactis santolinoides var. indurata
                                               Chaenactis santolinoides var. santolinoides
                                             Chaenactis scaposa
                                             Chaenactis stevioides
                                                   [Chaenactis furcata]
                                                   [Chaenactis gillespiei]
                                                   [Chaenactis stevioides var. brachypappa]
                                                   [Chaenactis stevioides var. stevioides]
                                                   [Chaenactis stevioides var. thornberi]
                                             Chaenactis suffrutescens
                                               Chaenactis suffrutescens var. incana
                                             Chaenactis suksdorfii
                                               Chaenactis tanacetifolia var. gracilenta
                                               Chaenactis tanacetifolia var. tanacetifolia
                                             Chaenactis tenuifolia
                                               Chaenactis tenuifolia var. orcuttiana
                                             Chaenactis thompsonii
                                             Chaenactis xantiana
                                                   [Chaenactis xantiana var. integrifolia]
                                     Chaetadelpha
                                             Chaetadelpha wheeleri
                                                   [Stephanomeria wheeleri]
                                     Chaetanthera
                                             Chaetanthera linearis
                                             Chaetanthera microphylla
                                             Chaetanthera moenchioides
                                     Chaetopappa
                                             Chaetopappa asteroides
                                               Chaetopappa asteroides var. grandis
                                                     [Distasis modesta]
                                             Chaetopappa bellidifolia
                                             Chaetopappa bellioides
                                             Chaetopappa effusa
                                             Chaetopappa ericoides
                                                   [Aster hirtifolius]
                                                   [Chrysopsis ericoides]
                                                   [Eucephalus ericoides]
                                                   [Inula ericoides]
                                                   [Leucelene ericoides]
                                             Chaetopappa parryi
                                     Chaetoseris
                                             Chaetoseris cyanea
                                     Chaetymenia
                                             Chaetymenia peduncularis
                                                   [Jaumea peduncularis]
                                     Chamaechaenactis
                                             Chamaechaenactis scaposa
                                     Chamaemelum
                                             Chamaemelum fuscatum
                                                   [Anthemis fuscata]
                                                   [Maruta fuscata]
                                             Chamaemelum nobile
                                                   [Anthemis nobilis]
                                     Chamomilla
                                             Chamomilla suffruticosa
                                     Chaptalia
                                             Chaptalia albicans
                                             Chaptalia dentata
                                             Chaptalia lyratifolia
                                               Chaptalia lyratifolia var. estribensis
                                                     [Chaptalia estribensis]
                                             Chaptalia madrensis
                                             Chaptalia media
                                             Chaptalia nutans
                                                   [Chaptalia majuscula]
                                             Chaptalia pringlei
                                             Chaptalia runcinata
                                             Chaptalia spathulata
                                             Chaptalia texana
                                             Chaptalia tomentosa
                                             Chaptalia transiliens
                                     Cheirolophus
                                             Cheirolophus benoistii
                                             Cheirolophus canariensis
                                                   [Centaurea canariensis]
                                             Cheirolophus crassifolius
                                                   [Centaurea crassifolia]
                                                   [Palaeocyanus crassifolius]
                                             Cheirolophus junonianus
                                             Cheirolophus mauritanicus
                                     Chiliotrichum
                                             Chiliotrichum diffusum
                                     Chionolaena
                                             Chionolaena cryptocephala
                                                   [Gnaphaliothamnus cryptocephalus]
                                             Chionolaena durangensis
                                                   [Gnaphaliothamnus durangensis]
                                             Chionolaena isabellae
                                             Chionolaena lavandulifolia
                                                   [Chionolaena macdonaldii]
                                                   [Gnaphaliothamnus macdonaldii]
                                             Chionolaena salicifolia
                                                   [Gnaphalium rhodanthum]
                                                   [Gnaphalium salicifolium]
                                     Chloracantha
                                             Chloracantha australis
                                                   [Chloracantha spinosa var. strictospinosa]
                                             Chloracantha spinosa
                                                   [Aster spinosus]
                                                   [Chloracantha spinosa var. jaliscensis]
                                                   [Chloracantha spinosa var. spinosissima]
                                               Chloracantha spinosa var. spinosa
                                                     [Aster spinosus]
                                     Chlorocrepis
                                     Chondrilla
                                             Chondrilla juncea
                                             Chondrilla ramosissima
                                     Chondrophora
                                     Chorisiva
                                     Chromolaena
                                             Chromolaena breedlovei
                                             Chromolaena collina
                                                   [Eupatorium collinum var. mendezii]
                                                   [Eupatorium collinum]
                                             Chromolaena glaberrima
                                             Chromolaena haenkeana
                                                   [Eupatorium haenkeanum]
                                             Chromolaena haughtii
                                             Chromolaena integrifolia
                                                   [Eupatorium integrifolium]
                                             Chromolaena laevigata
                                             Chromolaena lucayana
                                                   [Eupatorium lucayanum]
                                             Chromolaena odorata
                                                   [Eupatorium odoratum]
                                             Chromolaena opadoclinia
                                             Chromolaena ovaliflora
                                                   [Chromolaena bertholdii]
                                                   [Eupatorium bertholdii var. stenophyllum]
                                                   [Eupatorium bertholdii]
                                                   [Eupatorium ovaliflorum]
                                             Chromolaena pedalis
                                                   [Eupatorium pedale]
                                             Chromolaena pulchella
                                                   [Eupatorium pulchellum var. angustifolium]
                                                   [Eupatorium pulchellum]
                                             Chromolaena quercetorum
                                             Chromolaena rojasii
                                                   [Eupatorium rojasii]
                                             Chromolaena sagittata
                                                   [Eupatorium sagittatum]
                                             Chromolaena scabra
                                             Chromolaena tecta
                                     Chromolepis
                                             Chromolepis heterophylla
                                     Chrysactinia
                                             Chrysactinia acerosa
                                             Chrysactinia mexicana
                                                   [Pectis taxifolia]
                                             Chrysactinia pinnata
                                             Chrysactinia truncata
                                     Chrysanthellum
                                             Chrysanthellum americanum
                                             Chrysanthellum indicum
                                               Chrysanthellum indicum subsp. mexicanum
                                                     [Chrysanthellum indicum var. mexicanum]
                                                     [Chrysanthellum mexicanum]
                                                     [Coreopsis diffusa]
                                             Chrysanthellum integrifolium
                                             Chrysanthellum involutum
                                             Chrysanthellum keilii
                                             Chrysanthellum perennans
                                             Chrysanthellum pilzii
                                             Chrysanthellum pinnatisectum
                                                   [Eryngiophyllum pinnatisectum]
                                             Chrysanthellum pusillum
                                     Chrysanthemoides
                                             Chrysanthemoides monilifera
                                               Chrysanthemoides monilifera subsp. monilifera
                                     Chrysanthemum
                                             Chrysanthemum anethifolium
                                             Chrysanthemum indicum
                                                   [Dendranthema indicum]
                                             Chrysanthemum japonicum
                                                   [Chrysanthemum makinoi]
                                             Chrysanthemum lavandulifolium
                                             Chrysanthemum maritimum
                                             Chrysanthemum montanum
                                             Chrysanthemum morifolium
                                                   [Dendranthema grandiflorum]
                                                   [Dendranthema morifolium]
                                     Chrysocephalum
                                             Chrysocephalum apiculatum
                                               Chrysocephalum apiculatum subsp. apiculatum
                                                     [Helichrysum apiculatum]
                                             Chrysocephalum semipapposum
                                               Chrysocephalum semipapposum subsp. semipapposum
                                                     [Helichrysum semipapposum]
                                     Chrysocoma
                                             Chrysocoma cernua
                                                   [Chrysocoma coma-aurea]
                                             Chrysocoma ciliata
                                             Chrysocoma esterhuyseniae
                                             Chrysocoma longifolia
                                             Chrysocoma schlechteri
                                     Chrysogonum
                                             Chrysogonum virginianum
                                               Chrysogonum virginianum var. australe
                                     Chrysolaena
                                             Chrysolaena cognata
                                                   [Vernonia cognata]
                                             Chrysolaena flexuosa
                                                   [Vernonia flexuosa]
                                             Chrysolaena lithospermifolia
                                                   [Vernonia lithospermifolia]
                                             Chrysolaena platensis
                                                   [Vernonia platensis]
                                             Chrysolaena simplex
                                                   [Vernonia simplex]
                                     Chrysoma
                                             Chrysoma pauciflosculosa
                                     Chrysopsis
                                             Chrysopsis caespitosa
                                             Chrysopsis floridana
                                             Chrysopsis gossypina
                                               Chrysopsis gossypina subsp. cruiseana
                                               Chrysopsis gossypina subsp. gossypina
                                                     [Chrysopsis trichophylla]
                                               Chrysopsis gossypina subsp. hyssopifolia
                                                     [Chrysopsis gigantea]
                                                     [Chrysopsis mixta]
                                             Chrysopsis lanuginosa
                                             Chrysopsis latisquamea
                                             Chrysopsis linearifolia
                                               Chrysopsis linearifolia var. dressii
                                                     [Chrysopsis linearifolia subsp. dressii]
                                             Chrysopsis mariana
                                                   [Heterotheca mariana]
                                             Chrysopsis scabrella
                                             Chrysopsis subulata
                                     Chrysothamnus
                                             Chrysothamnus corymbosus
                                             Chrysothamnus depressus
                                                   [Bigelovia depressa]
                                                   [Bigelowia depressa]
                                                   [Ericameria depressa]
                                                   [Linosyris depressa]
                                             Chrysothamnus eremobius
                                             Chrysothamnus greenei
                                                   [Bigelowia greenei]
                                                   [Chrysothamnus greenei subsp. filifolius]
                                                   [Chrysothamnus greenei var. filifolius]
                                             Chrysothamnus humilis
                                                   [Chrysothamnus viscidiflorus subsp. humilis]
                                                   [Chrysothamnus viscidiflorus var. humilis]
                                                   [Ericameria humilis]
                                             Chrysothamnus molestus
                                                   [Chrysothamnus viscidiflorus var. molestus]
                                             Chrysothamnus scopulorum
                                                   [Hesperodoria scopulorum]
                                             Chrysothamnus stylosus
                                                   [Grindelia stylosa]
                                                   [Vanclevea stylosa]
                                             Chrysothamnus vaseyi
                                                   [Chrysothamnus bakeri]
                                             Chrysothamnus viscidiflorus
                                                   [Aster viscidiflorus]
                                                   [Bigelovia viscidiflora]
                                                   [Bigelowia viscidiflora]
                                                   [Crinitaria viscidiflora]
                                                   [Ericameria viscidiflora]
                                                   [Linosyris viscidiflora]
                                               Chrysothamnus viscidiflorus subsp. axillaris
                                                     [Chrysothamnus axillaris]
                                               Chrysothamnus viscidiflorus subsp. lanceolatus
                                                     [Chrysothamnus viscidiflorus subsp. elegans]
                                                     [Chrysothamnus viscidiflorus var. elegans]
                                                     [Chrysothamnus viscidiflorus var. lanceolatus]
                                               Chrysothamnus viscidiflorus subsp. planifolius
                                               Chrysothamnus viscidiflorus subsp. puberulus
                                                     [Chrysothamnus viscidiflorus var. puberulus]
                                               Chrysothamnus viscidiflorus subsp. viscidiflorus
                                                     [Bigelowia douglasii var. serrulata]
                                                     [Bigelowia douglasii]
                                                     [Chrysothamnus pumilus]
                                                     [Chrysothamnus viscidiflorus subsp. latifolius]
                                                     [Chrysothamnus viscidiflorus subsp. linifolius]
                                                     [Chrysothamnus viscidiflorus subsp. pumilus]
                                                     [Chrysothamnus viscidiflorus subsp. stenophyllus]
                                                     [Chrysothamnus viscidiflorus var. latifolius]
                                                     [Chrysothamnus viscidiflorus var. linifolius]
                                                     [Chrysothamnus viscidiflorus var. pumilus]
                                                     [Chrysothamnus viscidiflorus var. stenophyllus]
                                                     [Chrysothamnus viscidiflorus var. viscidiflorus]
                                     Chthonocephalus
                                             Chthonocephalus pseudevax
                                             Chthonocephalus viscosus
                                     Chuquiraga
                                             Chuquiraga atacamensis
                                             Chuquiraga aurea
                                             Chuquiraga avellanedae
                                                   [Chuquiraga kingii]
                                             Chuquiraga erinacea
                                             Chuquiraga jussieui
                                                   [Chuquiraga insignis]
                                             Chuquiraga oppositifolia
                                             Chuquiraga spinosa
                                             Chuquiraga straminea
                                             Chuquiraga ulicina
                                               Chuquiraga ulicina subsp. acicularis
                                             Chuquiraga weberbaueri
                                     Cicerbita
                                             Cicerbita alpina
                                                   [Mulgedium alpinum]
                                             Cicerbita plumieri
                              Cichorioideae
                                     Achyrophorus
                                             Achyrophorus valdesii
                                                   [Hypochaeris achyrophorus]
                                     Hesperomannia
                                             Hesperomannia arbuscula
                                                   [Hesperomannia arbuscula subsp. oahuensis]
                                     Lapsanastrum
                                             Lapsanastrum apogonoides
                                                   [Lapsana apogonoides]
                                     Pseudopegolettia
                                             Pseudopegolettia tenella
                                     Pseudopodospermum
                                             Pseudopodospermum hispanicum
                                               Pseudopodospermum hispanicum subsp. asphodeloides
                                                     [Scorzonera hispanica subsp. asphodeloides]
                                     Cichorium
                                             Cichorium endivia
                                             Cichorium intybus
                                             Cichorium pumilum
                                             Cichorium spinosum
                                     Cirsium
                                             Cirsium acaule
                                             Cirsium aduncum
                                               Cirsium aduncum subsp. bashkalense
                                             Cirsium aggregatum
                                             Cirsium alatum
                                                   [Cirsium elodes]
                                               Cirsium alatum subsp. alatum
                                             Cirsium alpis-lunae
                                             Cirsium altissimum
                                                   [Cirsium iowense]
                                             Cirsium amani
                                             Cirsium americanum
                                             Cirsium anartiolepis
                                             Cirsium andersonii
                                                   [Carduus andersonii]
                                                   [Cnicus andersonii]
                                             Cirsium andrewsii
                                                   [Carduus andrewsii]
                                                   [Cirsium amplifolium]
                                                   [Cirsium mendocinum]
                                                   [Cnicus andrewsii]
                                             Cirsium arizonicum
                                                   [Carduus arizonicus]
                                                   [Cnicus arizonicus]
                                                   [Cnicus nidulus]
                                               Cirsium arizonicum var. arizonicum
                                               Cirsium arizonicum var. bipinnatum
                                                     [Cirsium bipinnatum]
                                                     [Cirsium calcareum]
                                                     [Cirsium pulchellum]
                                                     [Cnicus calcareus]
                                                     [Cnicus drummondii var. bipinnatus]
                                               Cirsium arizonicum var. chellyense
                                                     [Cirsium chellyense]
                                               Cirsium arizonicum var. nidulum
                                                     [Carduus nidulus]
                                                     [Cirsium nidulum]
                                                     [Cnicus nidulus]
                                               Cirsium arizonicum var. rothrockii
                                                     [Cirsium rothrockii]
                                                     [Cnicus rothrockii]
                                               Cirsium arizonicum var. tenuisectum
                                             Cirsium arvense
                                                   [Breea arvensis]
                                                   [Carduus arvensis]
                                                   [Cephalonoplos arvense]
                                                   [Cirsium arvense var. horridum]
                                                   [Cnicus arvensis]
                                                   [Serratula arvensis]
                                               Cirsium arvense var. arvense
                                               Cirsium arvense var. integrifolium
                                                     [Cirsium arvense var. mite]
                                               Cirsium arvense var. vestitum
                                                     [Cirsium incanum]
                                             Cirsium barnebyi
                                             Cirsium baytopae
                                             Cirsium bertolonii
                                             Cirsium bocoynense
                                             Cirsium boluense
                                             Cirsium botryodes
                                             Cirsium bracteosum
                                             Cirsium brevifolium
                                                   [Cirsium palousense]
                                             Cirsium brevistylum
                                             Cirsium buchwaldii
                                             Cirsium bulgaricum
                                             Cirsium byzantinum
                                                   [Cirsium polycephalum]
                                             Cirsium candelabrum
                                             Cirsium canescens
                                                   [Cirsium nelsonii]
                                                   [Cirsium plattense]
                                                   [Cnicus undulatus var. canescens]
                                             Cirsium canum
                                             Cirsium carolinianum
                                             Cirsium cassium
                                             Cirsium caucasicum
                                             Cirsium chrysacanthum
                                             Cirsium ciliatum
                                               Cirsium ciliatum subsp. szovitsii
                                             Cirsium ciliolatum
                                                   [Carduus ciliolatus]
                                                   [Cirsium howellii]
                                                   [Cirsium undulatum var. ciliolatum]
                                             Cirsium clavatum
                                                   [Cnicus clavatus]
                                               Cirsium clavatum var. americanum
                                                     [Cirsium centaureae]
                                               Cirsium clavatum var. clavatum
                                               Cirsium clavatum var. osterhoutii
                                                     [Carduus osterhoutii]
                                             Cirsium coahuilense
                                             Cirsium conspicuum
                                             Cirsium crassicaule
                                                   [Carduus crassicaulis]
                                             Cirsium creticum
                                               Cirsium creticum subsp. creticum
                                             Cirsium cymosum
                                                   [Carduus cymosus]
                                                   [Cirsium botrys]
                                               Cirsium cymosum var. canovirens
                                                     [Carduus canovirens]
                                                     [Cirsium canovirens]
                                               Cirsium cymosum var. cymosum
                                             Cirsium davisianum
                                             Cirsium dirmilense
                                             Cirsium discolor
                                             Cirsium dissectum
                                             Cirsium douglasii
                                                   [Carduus undulatus var. douglasii]
                                                   [Cirsium breweri var. wrangelii]
                                               Cirsium douglasii var. breweri
                                                     [Carduus breweri]
                                                     [Cirsium breweri var. breweri]
                                                     [Cirsium breweri var. canescens]
                                                     [Cirsium breweri var. lanosissimum]
                                                     [Cirsium breweri]
                                                     [Cirsium douglasii var. canescens]
                                                     [Cnicus breweri var. breweri]
                                                     [Cnicus breweri]
                                               Cirsium douglasii var. douglasii
                                             Cirsium drummondii
                                                   [Cnicus drummondii]
                                             Cirsium durangense
                                             Cirsium eatonii
                                               Cirsium eatonii var. clokeyi
                                                     [Cirsium clokeyi]
                                               Cirsium eatonii var. eatonii
                                               Cirsium eatonii var. eriocephalum
                                                     [Cirsium scopulorum]
                                               Cirsium eatonii var. hesperium
                                                     [Cirsium hesperium]
                                                     [Cnicus hesperius]
                                               Cirsium eatonii var. murdockii
                                                     [Cirsium tweedyi]
                                               Cirsium eatonii var. peckii
                                                     [Cirsium peckii]
                                               Cirsium eatonii var. viperinum
                                             Cirsium echinus
                                             Cirsium edule
                                                   [Cirsium hallii]
                                                   [Cnicus hallii]
                                             Cirsium ehrenbergii
                                             Cirsium ekimianum
                                             Cirsium eliasianum
                                             Cirsium ellenbergii
                                             Cirsium engelmannii
                                                   [Cirsium terrae-nigrae]
                                             Cirsium eriophoroides
                                             Cirsium eriophorum
                                             Cirsium erisithales
                                             Cirsium excelsius
                                             Cirsium faucium
                                             Cirsium flodmanii
                                             Cirsium foliosum
                                                   [Carduus foliosus]
                                             Cirsium fontinale
                                                   [Carduus fontinalis]
                                                   [Cnicus fontinalis]
                                               Cirsium fontinale var. campylon
                                                     [Cirsium campylon]
                                               Cirsium fontinale var. fontinale
                                               Cirsium fontinale var. obispoense
                                             Cirsium giganteum
                                             Cirsium grahamii
                                                   [Cnicus grahamii]
                                             Cirsium griseum
                                             Cirsium handaniae
                                             Cirsium handelii
                                             Cirsium helenioides
                                             Cirsium heterophyllum
                                             Cirsium hookerianum
                                                   [Cirsium kelseyi]
                                             Cirsium horridulum
                                               Cirsium horridulum var. horridulum
                                               Cirsium horridulum var. megacanthum
                                               Cirsium horridulum var. vittatum
                                                     [Cirsium smallii]
                                                     [Cirsium vittatum]
                                             Cirsium hydrophilum
                                                   [Carduus hydrophilus]
                                               Cirsium hydrophilum var. hydrophilum
                                                     [Cirsium vaseyi var. hydrophilum]
                                               Cirsium hydrophilum var. vaseyi
                                                     [Carduus vaseyi]
                                                     [Cirsium vaseyi var. vaseyi]
                                                     [Cirsium vaseyi]
                                                     [Cnicus breweri var. vaseyi]
                                             Cirsium hypoleucum
                                             Cirsium imbricatum
                                             Cirsium inamoenum
                                               Cirsium inamoenum var. davisii
                                               Cirsium inamoenum var. inamoenum
                                                     [Carduus canovirens]
                                                     [Cirsium subniveum]
                                             Cirsium italicum
                                             Cirsium jaliscoense
                                             Cirsium japonicum
                                             Cirsium joannae
                                             Cirsium kamtschaticum
                                             Cirsium karduchorum
                                             Cirsium kosmelii
                                             Cirsium lanceolatum
                                             Cirsium lappaceum
                                             Cirsium lecontei
                                                   [Carduus lecontei]
                                             Cirsium leucopsis
                                             Cirsium libanoticum
                                               Cirsium libanoticum subsp. arachnoideum
                                             Cirsium ligulare
                                             Cirsium lomatolepis
                                                   [Cnicus linearifolius]
                                             Cirsium longistylum
                                             Cirsium luzoniense
                                             Cirsium macrobotrys
                                             Cirsium mexicanum
                                             Cirsium mohavense
                                                   [Carduus mohavensis]
                                                   [Cirsium virginense]
                                                   [Cirsium virginensis]
                                             Cirsium mollissimum
                                             Cirsium monspessulanum
                                             Cirsium muticum
                                                   [Carduus muticus]
                                             Cirsium neomexicanum
                                                   [Carduus neomexicanus]
                                                   [Cirsium neomexicanum var. neomexicanum]
                                                   [Cirsium neomexicanum var. utahense]
                                                   [Cirsium utahense]
                                                   [Cnicus neomexicanus]
                                             Cirsium nigriceps
                                             Cirsium nuttallii
                                             Cirsium occidentale
                                                   [Carduus occidentalis]
                                               Cirsium occidentale var. californicum
                                                     [Carduus bernardinus]
                                                     [Carduus californicus]
                                                     [Cirsium californicum subsp. californicum]
                                                     [Cirsium californicum subsp. pseudoreglense]
                                                     [Cirsium californicum var. bernardinum]
                                                     [Cirsium californicum var. californicum]
                                                     [Cirsium californicum]
                                               Cirsium occidentale var. candidissimum
                                                     [Carduus occidentalis var. candidissimus]
                                                     [Cirsium candidissimum]
                                                     [Cirsium occidentale subsp. candidissimum]
                                                     [Cirsium pastoris]
                                               Cirsium occidentale var. compactum
                                               Cirsium occidentale var. coulteri
                                                     [Cirsium coulteri]
                                               Cirsium occidentale var. lucianum
                                               Cirsium occidentale var. occidentale
                                               Cirsium occidentale var. venustum
                                                     [Cirsium coulteri]
                                                     [Cirsium occidentale subsp. venustum]
                                                     [Cirsium proteanum]
                                             Cirsium ochrocentrum
                                                   [Carduus ochrocentrus]
                                                   [Cnicus undulatus var. ochrocentrus]
                                               Cirsium ochrocentrum subsp. ochrocentrum
                                               Cirsium ochrocentrum var. martinii
                                                     [Cirsium ochrocentrum subsp. martinii]
                                               Cirsium ochrocentrum var. ochrocentrum
                                                     [Cirsium ochrocentrum subsp. ochrocentrum]
                                             Cirsium oleraceum
                                             Cirsium ownbeyi
                                             Cirsium pacificum
                                             Cirsium palustre
                                             Cirsium pannonicum
                                             Cirsium parryi
                                                   [Cirsium pallidum]
                                             Cirsium perplexans
                                                   [Carduus vernalis]
                                             Cirsium pinetorum
                                             Cirsium pitcheri
                                             Cirsium poluninii
                                             Cirsium praeteriens
                                             Cirsium pringlei
                                                   [Cnicus pringlei]
                                             Cirsium pseudocreticum
                                                   [Cirsium alatum subsp. pseudocreticum]
                                             Cirsium pseudopersonata
                                               Cirsium pseudopersonata subsp. kusnezowianum
                                               Cirsium pseudopersonata subsp. pseudopersonata
                                             Cirsium pubigerum
                                                   [Cirsium pubigerum var. glomeratum]
                                                   [Cirsium pubigerum var. spinosum]
                                             Cirsium pulcherrimum
                                             Cirsium pumilum
                                               Cirsium pumilum var. hillii
                                               Cirsium pumilum var. pumilum
                                             Cirsium quercetorum
                                                   [Carduus quercetorum]
                                                   [Cirsium quercetorum var. walkerianum]
                                                   [Cirsium quercetorum var. xerolepis]
                                                   [Cirsium walkerianum]
                                                   [Cnicus quercetorum]
                                             Cirsium remotifolium
                                                   [Carduus remotifolius]
                                                   [Cnicus remotifolius]
                                               Cirsium remotifolium var. odontolepis
                                                     [Carduus callilepis]
                                                     [Cirsium amblylepis]
                                                     [Cirsium americanum var. callilepis]
                                                     [Cirsium callilepis var. pseudocarlinoides]
                                                     [Cirsium callilepis]
                                                     [Cirsium remotifolium subsp. oregonense]
                                               Cirsium remotifolium var. remotifolium
                                                     [Cirsium remotifolium subsp. remotifolium]
                                               Cirsium remotifolium var. rivulare
                                                     [Cirsium acanthodontum]
                                                     [Cirsium oreganum]
                                             Cirsium repandum
                                             Cirsium rhaphilepis
                                             Cirsium rhizocephalum
                                                   [Cirsium rhizocephalum subsp. sinuatum]
                                               Cirsium rhizocephalum subsp. rhizocephalum
                                             Cirsium rhothophilum
                                                   [Carduus maritima]
                                                   [Carduus maritimus]
                                             Cirsium rydbergii
                                             Cirsium scabrum
                                                   [Cirsium giganteum]
                                             Cirsium scariosum
                                                   [Carduus magnificus]
                                                   [Carduus scariosus]
                                                   [Cirsium hookerianum var. scariosum]
                                               Cirsium scariosum var. americanum
                                                     [Cirsium acaulescens]
                                                     [Cirsium drummondii subsp. vexans]
                                                     [Cirsium drummondii var. oregonense]
                                                     [Cirsium tioganum]
                                               Cirsium scariosum var. citrinum
                                                     [Carduus validus]
                                                     [Cirsium drummondii subsp. latisquamum]
                                                     [Cirsium quercetorum var. citrinum]
                                               Cirsium scariosum var. coloradense
                                                     [Cirsium coloradense]
                                               Cirsium scariosum var. congdonii
                                                     [Carduus tioganus]
                                                     [Cirsium congdonii]
                                                     [Cirsium tioganum]
                                                     [Cnicus tioganus]
                                               Cirsium scariosum var. loncholepis
                                                     [Cirsium loncholepis]
                                               Cirsium scariosum var. robustum
                                               Cirsium scariosum var. scariosum
                                                     [Cirsium drummondii var. lanatum]
                                               Cirsium scariosum var. thorneae
                                               Cirsium scariosum var. toiyabense
                                             Cirsium shansiense
                                             Cirsium sidi-guinii
                                             Cirsium simplex
                                               Cirsium simplex subsp. armenum
                                             Cirsium sintenisii
                                             Cirsium sipyleum
                                             Cirsium sorocephalum
                                               Cirsium sorocephalum subsp. congestum
                                                     [Cirsium congestum]
                                             Cirsium spicatum
                                             Cirsium spinosissimum
                                             Cirsium steirolepis
                                             Cirsium strigosum
                                                   [Cirsium leuconeurum]
                                             Cirsium subcoriaceum
                                             Cirsium subulariforme
                                             Cirsium tenoreanum
                                             Cirsium texanum
                                             Cirsium tolucanum
                                                   [Cnicus tolucanus]
                                             Cirsium trachylomum
                                             Cirsium tracyi
                                                   [Carduus tracyi]
                                                   [Cirsium undulatum var. tracyi]
                                             Cirsium turneri
                                             Cirsium undulatum
                                                   [Carduus undulatus]
                                                   [Cirsium megacephalum]
                                                   [Cirsium undulatum var. undulatum]
                                                   [Cnicus undulatus]
                                               Cirsium undulatum var. undulatum
                                             Cirsium velatum
                                                   [Cnicus velatus]
                                             Cirsium venustum
                                             Cirsium vinaceum
                                             Cirsium virginianum
                                             Cirsium vulgare
                                                   [Carduus vulgaris]
                                             Cirsium wheeleri
                                                   [Carduus perennans]
                                                   [Cirsium blumeri]
                                                   [Cirsium perennans]
                                             Cirsium wrightii
                                             Cirsium yildizianum
                                     Cissampelopsis
                                             Cissampelopsis corifolia
                                             Cissampelopsis volubilis
                                     Clibadium
                                             Clibadium anceps
                                             Clibadium arboreum
                                             Clibadium eggersii
                                             Clibadium erosum
                                             Clibadium glomeratum
                                             Clibadium grandifolium
                                             Clibadium laxum
                                             Clibadium leiocarpum
                                             Clibadium surinamense
                                                   [Clibadium asperum]
                                             Clibadium sylvestre
                                             Clibadium terebinthinaceum
                                             Clibadium websteri
                                     Cloiselia
                                             Cloiselia carbonaria
                                                   [Dicoma carbonaria]
                                     Clomenocoma
                                     Cnicus
                                     Coinogyne
                                     Coleosanthus
                                             Coleosanthus oblongifolius
                                     Coleostephus
                                             Coleostephus multicaulis
                                             Coleostephus myconis
                                               Coleostephus myconis subsp. myconis
                                                     [Chrysanthemum myconis]
                                     Comaclinium
                                             Comaclinium montanum
                                                   [Clomenocoma laciniata]
                                     Comborhiza
                                     Complaya
                                     Conoclinium
                                             Conoclinium betonicifolium
                                                   [Eupatorium betonicifolium]
                                               Conoclinium betonicifolium var. integrifolium
                                                     [Eupatorium betonicifolium var. integrifolium]
                                             Conoclinium coelestinum
                                                   [Eupatorium coelestinum]
                                             Conoclinium dissectum
                                                   [Conoclinium greggii]
                                                   [Eupatorium greggii]
                                             Conoclinium mayfieldii
                                     Constancea
                                             Constancea nevinii
                                                   [Eriophyllum nevinii]
                                     Conyza
                                             Conyza bilbaoana
                                                   [Erigeron bilbaoanus]
                                             Conyza clarenceana
                                                   [Conyza theodori]
                                             Conyza dentonae
                                             Conyza newii
                                             Conyza pinnatifida
                                             Conyza stricta
                                               Conyza stricta var. pinnatifida
                                     Conyzanthus
                                     Conyzella
                                     Coreocarpus
                                             Coreocarpus arizonicus
                                                   [Coreocarpus arizonicus var. macrophyllus]
                                               Coreocarpus arizonicus var. arizonicus
                                               Coreocarpus arizonicus var. filiformis
                                               Coreocarpus arizonicus var. pubescens
                                               Coreocarpus arizonicus var. sanpedroensis
                                                     [Coreocarpus sanpedroensis]
                                             Coreocarpus congregatus
                                                   [Coreopsis congregata]
                                             Coreocarpus dissectus
                                                   [Coreocarpus dissectus var. longilobus]
                                             Coreocarpus insularis
                                                   [Leptosyne insularis]
                                             Coreocarpus parthenioides
                                                   [Coreocarpus robustior]
                                                   [Coreocarpus shrevei var. latilobus]
                                                   [Coreocarpus shrevei]
                                               Coreocarpus parthenioides var. heterocarpus
                                                     [Coreocarpus heterocarpus]
                                               Coreocarpus parthenioides var. involutus
                                                     [Coreocarpus involutus]
                                               Coreocarpus parthenioides var. parthenioides
                                             Coreocarpus sonoranus
                                                   [Coreocarpus johnstonii]
                                               Coreocarpus sonoranus var. libranus
                                               Coreocarpus sonoranus var. sonoranus
                                     Coreopsis
                                             Coreopsis angustifolia
                                             Coreopsis auriculata
                                             Coreopsis basalis
                                             Coreopsis bolanosana
                                             Coreopsis connata
                                             Coreopsis crassifolia
                                             Coreopsis crawfordii
                                             Coreopsis delphiniifolia
                                             Coreopsis drummondii
                                             Coreopsis fasciculata
                                             Coreopsis gladiata
                                                   [Coreopsis falcata]
                                                   [Coreopsis helianthoides]
                                                   [Coreopsis longifolia]
                                                   [Coreopsis oniscicarpa var. simulans]
                                                   [Coreopsis oniscicarpa]
                                             Coreopsis grandiflora
                                                   [Coreopsis grandiflora f. harveyana]
                                                   [Coreopsis grandiflora var. harveyana]
                                                   [Coreopsis saxicola]
                                             Coreopsis holodasya
                                             Coreopsis integrifolia
                                             Coreopsis intermedia
                                             Coreopsis lanceolata
                                             Coreopsis latifolia
                                             Coreopsis leavenworthii
                                                   [Coreopsis lewtonii]
                                             Coreopsis major
                                             Coreopsis maysillesii
                                             Coreopsis nudata
                                             Coreopsis nuecensis
                                                   [Coreopsis nuecensoides]
                                             Coreopsis oaxacensis
                                             Coreopsis palmata
                                             Coreopsis paludosa
                                             Coreopsis petrophila
                                             Coreopsis petrophiloides
                                             Coreopsis pringlei
                                             Coreopsis pubescens
                                             Coreopsis rosea
                                             Coreopsis rudis
                                             Coreopsis suaveolens
                                             Coreopsis tinctoria
                                                   [Calliopsis tinctoria]
                                                   [Coreopsis atkinsoniana]
                                                   [Coreopsis cardaminefolia]
                                                   [Coreopsis stenophylla]
                                                   [Coreopsis tinctoria var. atkinsoniana]
                                                   [Coreopsis tinctoria var. similis]
                                                   [Coreopsis tinctoria var. tinctoria]
                                                   [Diplosastera tinctoria]
                                               Coreopsis tinctoria var. tinctoria
                                             Coreopsis tripteris
                                             Coreopsis verticillata
                                             Coreopsis wrightii
                                                   [Coreopsis basalis var. wrightii]
                                                   [Coreopsis drummondii var. wrightii]
                                     Corethrogyne
                                             Corethrogyne filaginifolia
                                                   [Aster filaginifolius]
                                                   [Corethrogyne brevicula]
                                                   [Corethrogyne californica var. californica]
                                                   [Corethrogyne californica var. filaginifolia]
                                                   [Corethrogyne californica var. lyonii]
                                                   [Corethrogyne californica var. obovata]
                                                   [Corethrogyne californica]
                                                   [Corethrogyne filaginifolia var. bernardina]
                                                   [Corethrogyne filaginifolia var. brevicula]
                                                   [Corethrogyne filaginifolia var. californica]
                                                   [Corethrogyne filaginifolia var. filaginifolia]
                                                   [Corethrogyne filaginifolia var. glomerata]
                                                   [Corethrogyne filaginifolia var. hamiltonensis]
                                                   [Corethrogyne filaginifolia var. incana]
                                                   [Corethrogyne filaginifolia var. latifolia]
                                                   [Corethrogyne filaginifolia var. linifolia]
                                                   [Corethrogyne filaginifolia var. pacifica]
                                                   [Corethrogyne filaginifolia var. peirsonii]
                                                   [Corethrogyne filaginifolia var. pinetorum]
                                                   [Corethrogyne filaginifolia var. rigida]
                                                   [Corethrogyne filaginifolia var. robusta]
                                                   [Corethrogyne filaginifolia var. sessilis]
                                                   [Corethrogyne filaginifolia var. virgata]
                                                   [Corethrogyne filaginifolia var. viscidula]
                                                   [Corethrogyne flagellaris]
                                                   [Corethrogyne floccosa]
                                                   [Corethrogyne lavandulacea]
                                                   [Corethrogyne leucophylla]
                                                   [Corethrogyne racemosa]
                                                   [Corethrogyne scabra]
                                                   [Corethrogyne sessilis]
                                                   [Corethrogyne spathulata]
                                                   [Corethrogyne virgata]
                                                   [Corethrogyne viscidula var. greenei]
                                                   [Corethrogyne viscidula]
                                                   [Lessingia filaginifolia var. californica]
                                                   [Lessingia filaginifolia var. filaginifolia]
                                                   [Lessingia filaginifolia]
                              Corymbioideae
                                     Corymbium
                                             Corymbium africanum
                                             Corymbium cymosum
                                             Corymbium glabrum
                                     Cosmos
                                             Cosmos bipinnatus
                                                   [Georgia bipinnata]
                                             Cosmos carvifolius
                                             Cosmos caudatus
                                             Cosmos concolor
                                             Cosmos crithmifolius
                                             Cosmos deficiens
                                             Cosmos diversifolius
                                                   [Cosmos diversifolius var. dahlioides]
                                             Cosmos jaliscensis
                                             Cosmos juxtlahuacensis
                                             Cosmos linearifolius
                                             Cosmos mcvaughii
                                             Cosmos modestus
                                             Cosmos ochroleucoflorus
                                             Cosmos pacificus
                                             Cosmos palmeri
                                                   [Cosmos palmeri var. odontophyllus]
                                             Cosmos parviflorus
                                                   [Coreopsis parviflora]
                                             Cosmos pringlei
                                             Cosmos purpureus
                                                   [Cosmos purpureus var. flavidiscus]
                                               Cosmos purpureus var. purpureus
                                             Cosmos scabiosoides
                                             Cosmos sulphureus
                                                   [Bidens sulphurea]
                                                   [Cosmos sulphureus var. exaristatus]
                                     Cota
                                             Cota tinctoria
                                                   [Anthemis tinctoria]
                                               Cota tinctoria subsp. tinctoria
                                                     [Anthemis tinctoria]
                                             Cota triumfettii
                                               Cota triumfettii subsp. triumfettii
                                                     [Anthemis rigescens]
                                                     [Anthemis triumfettii]
                                     Cotula
                                             Cotula abyssinica
                                             Cotula anthemoides
                                             Cotula australis
                                                   [Anacyclus australis]
                                                   [Lancisia australis]
                                                   [Strongylosperma australe]
                                             Cotula barbata
                                             Cotula coronopifolia
                                                   [Lancisia coronopifolia]
                                             Cotula heterocarpa
                                             Cotula hispida
                                             Cotula laxa
                                             Cotula leptalea
                                             Cotula mexicana
                                             Cotula microglossa
                                             Cotula nigellifolia
                                             Cotula paludosa
                                             Cotula sericea
                                             Cotula sororia
                                             Cotula turbinata
                                             Cotula vulgaris
                                             Cotula zeyheri
                                     Coulterella
                                             Coulterella capitata
                                     Cousinia
                                             Cousinia macroptera
                                                   [Cousinia compacta]
                                     Craspedia
                                             Craspedia glauca
                                             Craspedia uniflora
                                     Crassocephalum
                                             Crassocephalum crepidioides
                                                   [Gynura crepidioides]
                                             Crassocephalum ducis-aprutii
                                             Crassocephalum montuosum
                                             Crassocephalum rubens
                                               Crassocephalum rubens var. rubens
                                               Crassocephalum rubens var. sarcobasis
                                                     [Crassocephalum sarcobasis]
                                             Crassocephalum vitellinum
                                             Crassocephalum ×picridifolium
                                     Crassothonna
                                             Crassothonna capensis
                                                   [Othonna capensis]
                                             Crassothonna protecta
                                                   [Othonna protecta]
                                     Cratystylis
                                             Cratystylis conocephala
                                             Cratystylis subspinescens
                                     Cremanthodium
                                             Cremanthodium bulbilliferum
                                             Cremanthodium campanulatum
                                             Cremanthodium forrestii
                                             Cremanthodium latilobum
                                             Cremanthodium microglossum
                                             Cremanthodium phyllodineum
                                             Cremanthodium reniforme
                                             Cremanthodium rhodocephalum
                                             Cremanthodium smithianum
                                             Cremanthodium suave
                                             Cremanthodium variifolium
                                     Crepidiastrum
                                             Crepidiastrum akagii
                                                   [Youngia tenuifolia subsp. tenuicaulis]
                                             Crepidiastrum ameristophyllum
                                             Crepidiastrum lanceolatum
                                             Crepidiastrum tenuifolium
                                                   [Youngia tenuifolia]
                                     Crepis
                                             Crepis acuminata
                                                   [Crepis acuminata subsp. acuminata]
                                                   [Crepis acuminata subsp. pluriflora]
                                                   [Crepis acuminata var. acuminata]
                                                   [Crepis seselifolia]
                                                   [Hieraciodes acuminatum]
                                                   [Psilochenia acuminata]
                                             Crepis albida
                                             Crepis amplexifolia
                                             Crepis arenaria
                                               Crepis arenaria subsp. suberostris
                                             Crepis atribarba
                                                   [Crepis atribarba subsp. originalis]
                                                   [Crepis atribarba var. originalis]
                                                   [Crepis exilis subsp. originalis]
                                                   [Crepis exilis]
                                                   [Crepis occidentalis var. gracilis]
                                               Crepis atribarba subsp. atribarba
                                             Crepis aurea
                                             Crepis bakeri
                                                   [Psilochenia bakeri]
                                               Crepis bakeri subsp. bakeri
                                               Crepis bakeri subsp. cusickii
                                                     [Crepis cusickii]
                                               Crepis bakeri subsp. idahoensis
                                             Crepis barbigera
                                             Crepis blattarioides
                                             Crepis bursifolia
                                             Crepis canariensis
                                             Crepis capillaris
                                                   [Crepis virens]
                                                   [Lapsana capillaris]
                                             Crepis carbonaria
                                             Crepis claryi
                                             Crepis clausonis
                                             Crepis dioscoridis
                                                   [Crepis dioscoridis subsp. argolica]
                                             Crepis erythia
                                                   [Crepis fontiana]
                                             Crepis faureliana
                                             Crepis foetida
                                               Crepis foetida subsp. foetida
                                               Crepis foetida subsp. rhoeadifolia
                                             Crepis friesii
                                             Crepis froelichiana
                                               Crepis froelichiana subsp. dinarica
                                             Crepis glauca
                                             Crepis gossweileri
                                             Crepis granatensis
                                                   [Crepis pygmaea subsp. anachoretica]
                                             Crepis guioliana
                                             Crepis hookeriana
                                             Crepis hypochoeridea
                                                   [Crepis bumbensis]
                                             Crepis intermedia
                                                   [Crepis acuminata var. intermedia]
                                                   [Hieracioides intermedium]
                                                   [Psilochenia intermedia]
                                             Crepis juvenalis
                                             Crepis kotschyana
                                             Crepis leontodontoides
                                             Crepis libanotica
                                                   [Crepis reuteriana subsp. eigiana]
                                             Crepis modocensis
                                                   [Psilochenia modocensis]
                                               Crepis modocensis subsp. glareosa
                                                     [Crepis glareosa]
                                               Crepis modocensis subsp. modocensis
                                                     [Crepis modocensis var. modocensis]
                                                     [Crepis scopulorum]
                                               Crepis modocensis subsp. rostrata
                                                     [Crepis rostrata]
                                               Crepis modocensis subsp. subacaulis
                                                     [Crepis modocensis var. subacaulis]
                                                     [Crepis occidentalis var. subacaulis]
                                             Crepis monticola
                                             Crepis muhlisii
                                             Crepis multicaulis
                                             Crepis nana
                                                   [Askellia nana]
                                                   [Barkhausia nana]
                                                   [Crepis nana subsp. nana]
                                                   [Crepis nana subsp. ramosa]
                                                   [Crepis nana var. nana]
                                                   [Crepis nana var. ramosa]
                                                   [Hieraciodes nanum]
                                                   [Hieracioides nanum]
                                                   [Youngia nana]
                                                   [Youngia pygmaea var. nana]
                                             Crepis newii
                                               Crepis newii subsp. newii
                                                     [Crepis bumbensis subsp. itakensis]
                                                     [Crepis newii subsp. greenwayi]
                                               Crepis newii subsp. oliveriana
                                                     [Crepis iringensis]
                                             Crepis nicaeensis
                                             Crepis nigricans
                                             Crepis occidentalis
                                                   [Hieracioides occidentale]
                                                   [Psilochenia occidentalis]
                                               Crepis occidentalis subsp. conjuncta
                                               Crepis occidentalis subsp. costata
                                                     [Crepis occidentalis var. costata]
                                               Crepis occidentalis subsp. occidentalis
                                                     [Crepis occidentalis var. occidentalis]
                                               Crepis occidentalis subsp. pumila
                                                     [Crepis occidentalis var. pumila]
                                             Crepis oporinoides
                                             Crepis paludosa
                                                   [Hieracium paniculatum]
                                             Crepis patula
                                             Crepis pleurocarpa
                                                   [Crepis acuminata var. pleurocarpa]
                                                   [Crepis intermedia var. pleurocarpa]
                                             Crepis praemorsa
                                             Crepis pulchra
                                               Crepis pulchra subsp. africana
                                               Crepis pulchra subsp. turkestanica
                                             Crepis pygmaea
                                             Crepis pyrenaica
                                             Crepis reuteriana
                                             Crepis rhoeadifolia
                                             Crepis rubra
                                             Crepis rueppellii
                                             Crepis runcinata
                                                   [Hieracium runcinatum]
                                                   [Psilochenia runcinata]
                                               Crepis runcinata subsp. andersonii
                                                     [Crepis andersonii]
                                                     [Crepis runcinata var. andersonii]
                                               Crepis runcinata subsp. glauca
                                                     [Crepidium glaucum]
                                               Crepis runcinata subsp. hallii
                                               Crepis runcinata subsp. hispidulosa
                                                     [Crepis runcinata var. hispidulosa]
                                               Crepis runcinata subsp. imbricata
                                               Crepis runcinata subsp. runcinata
                                                     [Crepis perplexans]
                                                     [Crepis tomentulosa]
                                               Crepis runcinata var. glauca
                                               Crepis runcinata var. runcinata
                                                     [Crepis pallens]
                                             Crepis salzmannii
                                             Crepis sancta
                                             Crepis schultzii
                                             Crepis senecioides
                                                   [Crepis filiformis]
                                             Crepis setosa
                                                   [Crepis setosa subsp. topaliana]
                                             Crepis tectorum
                                                   [Hieracioides tectorum]
                                             Crepis urundica
                                             Crepis vesicaria
                                               Crepis vesicaria subsp. myriocephala
                                               Crepis vesicaria subsp. proleptica
                                               Crepis vesicaria subsp. stellata
                                               Crepis vesicaria subsp. taraxacifolia
                                                     [Crepis vesicaria var. taraxacifolia]
                                     Crinitaria
                                     Critonia
                                             Critonia arachnoidea
                                                   [Eupatorium arachnoideum]
                                             Critonia billbergiana
                                                   [Eupatorium billbergianum]
                                             Critonia breedlovei
                                             Critonia campechensis
                                             Critonia daleoides
                                                   [Eupatorium daleoides]
                                             Critonia hebebotrya
                                                   [Eupatorium hebebotrya]
                                                   [Eupatorium hebebotryum]
                                             Critonia hospitalis
                                                   [Eupatorium hospitale]
                                             Critonia lozanoana
                                                   [Eupatorium lozanoanum]
                                             Critonia microdon
                                                   [Critoniadelphus microdon]
                                                   [Eupatorium lucentifolium]
                                             Critonia morifolia
                                                   [Eupatorium morifolium]
                                             Critonia nubigena
                                                   [Critoniadelphus nubigenus]
                                                   [Eupatorium nubigenum]
                                             Critonia paneroi
                                             Critonia portoricensis
                                                   [Eupatorium portoricense]
                                             Critonia quadrangularis
                                                   [Eupatorium pycnocephalum]
                                                   [Eupatorium quadrangulare]
                                             Critonia yashanalensis
                                                   [Eupatorium yashanalense]
                                     Critoniadelphus
                                     Critoniopsis
                                             Critoniopsis autumnalis
                                                   [Vernonia autumnalis]
                                             Critoniopsis jalcana
                                                   [Vernonia jalcana]
                                             Critoniopsis jubifera
                                                   [Vernonia conwayi]
                                             Critoniopsis occidentalis
                                             Critoniopsis woytkowskii
                                                   [Vernonia lambayequensis]
                                     Crocidium
                                             Crocidium multicaule
                                     Crockeria
                                     Cronquistianthus
                                             Cronquistianthus trianae
                                             Cronquistianthus volkensii
                                                   [Eupatorium volkensii]
                                     Croptilon
                                           [Isopappus]
                                             Croptilon divaricatum
                                                   [Haplopappus divaricatus]
                                                   [Isopappus divaricatus]
                                               Croptilon divaricatum var. divaricatum
                                             Croptilon hookerianum
                                                   [Croptilon divaricatum var. hookerianum]
                                                   [Isopappus hookerianus]
                                               Croptilon hookerianum var. hookerianum
                                               Croptilon hookerianum var. validum
                                             Croptilon rigidifolium
                                     Crossostephium
                                     Crupina
                                             Crupina crupinastrum
                                             Crupina intermedia
                                             Crupina vulgaris
                                     Cryptostemma
                                     Culcitium
                                             Culcitium magellanicum
                                                   [Senecio magellanicus]
                                     Cuniculotinus
                                             Cuniculotinus gramineus
                                                   [Chrysothamnus gramineus]
                                                   [Ericameria graminea]
                                                   [Petradoria discoidea]
                                     Curio
                                             Curio archeri
                                                   [Senecio toxotis]
                                             Curio articulatus
                                                   [Kleinia articulata]
                                                   [Senecio articulatus]
                                             Curio corymbifer
                                                   [Senecio corymbiferus]
                                             Curio ficoides
                                                   [Kleinia ficoides]
                                             Curio radicans
                                                   [Senecio radicans]
                                             Curio repens
                                                   [Kleinia repens]
                                                   [Senecio serpens]
                                             Curio rowleyanus
                                                   [Senecio rowleyanus]
                                             Curio talinoides
                                                   [Senecio vitalis]
                                               Curio talinoides var. mandraliscae
                                                     [Senecio mandraliscae]
                                     Cyanopsis
                                     Cyanthillium
                                             Cyanthillium cinereum
                                                   [Vernonia cinerea]
                                             Cyanthillium stelluliferum
                                     Cyathocline
                                             Cyathocline purpurea
                                     Cyclachaena
                                             Cyclachaena xanthiifolia
                                                   [Cyclachaena xanthifolia]
                                                   [Euphrosyne xanthiifolia]
                                                   [Iva xanthifolia]
                                                   [Iva xanthiifolia]
                                     Cymbonotus
                                             Cymbonotus lawsonianus
                                     Cymophora
                                             Cymophora accedens
                                                   [Tridax accedens]
                                             Cymophora pringlei
                                     Cynara
                                             Cynara cardunculus
                                               Cynara cardunculus subsp. cardunculus
                                                     [Cynara cardunculus var. cardunculus]
                                                     [Cynara cardunculus var. scolymus]
                                                     [Cynara scolymus]
                                               Cynara cardunculus subsp. flavescens
                                             Cynara humilis
                                     Cyrtocymura
                                             Cyrtocymura harleyi
                                                   [Vernonia harleyi]
                                             Cyrtocymura scorpioides
                                                   [Vernonia scorpioides]
                                     Dahlia
                                             Dahlia apiculata
                                                   [Dahlia scapigeroides var. apiculata]
                                             Dahlia australis
                                                   [Dahlia barkerae]
                                             Dahlia brevis
                                                   [Dahlia pubescens]
                                             Dahlia campanulata
                                             Dahlia coccinea
                                             Dahlia dissecta
                                             Dahlia excelsa
                                             Dahlia hintonii
                                             Dahlia imperialis
                                                   [Dahlia arborea]
                                             Dahlia pinnata
                                             Dahlia pteropoda
                                             Dahlia purpusii
                                             Dahlia rudis
                                             Dahlia rupicola
                                             Dahlia scapigeroides
                                             Dahlia sherffii
                                             Dahlia tenuicaulis
                                             Dahlia tenuis
                                             Dahlia tubulata
                                     Damnxanthodium
                                             Damnxanthodium calvum
                                     Dasyphyllum
                                             Dasyphyllum argenteum
                                             Dasyphyllum brasiliense
                                             Dasyphyllum ferox
                                             Dasyphyllum flagellare
                                             Dasyphyllum popayanense
                                             Dasyphyllum varians
                                                   [Dasyphyllum brasiliense var. varians]
                                             Dasyphyllum weberbaueri
                                     Davilanthus
                                             Davilanthus davilae
                                             Davilanthus huajuapanus
                                                   [Viguiera grammatoglossa var. huajuapana]
                                             Davilanthus hypargyreus
                                             Davilanthus purpusii
                                             Davilanthus sericeus
                                                   [Viguiera bombycina]
                                     Decachaeta
                                             Decachaeta haenkeana
                                             Decachaeta incompta
                                             Decachaeta ovatifolia
                                             Decachaeta perornata
                                             Decachaeta pyramidalis
                                                   [Piqueria pyramidalis]
                                             Decachaeta scabrella
                                                   [Eupatorium scabrellum]
                                     Decaneuropsis
                                             Decaneuropsis blanda
                                                   [Vernonia blanda]
                                             Decaneuropsis craibiana
                                                   [Vernonia craibiana]
                                             Decaneuropsis cumingiana
                                                   [Vernonia cumingiana]
                                     Deinandra
                                             Deinandra arida
                                                   [Hemizonia arida]
                                             Deinandra bacigalupii
                                                   [Deinandra bacigalupi]
                                             Deinandra clementina
                                                   [Hemizonia clementina]
                                                   [Zonanthemis clementina]
                                             Deinandra conjugens
                                                   [Hemizonia conjugens]
                                             Deinandra corymbosa
                                                   [Deinandra corymbosa subsp. corymbosa]
                                                   [Deinandra corymbosa subsp. macrocephala]
                                                   [Hartmannia corymbosa]
                                                   [Hemizonia angustifolia subsp. macrocephala]
                                                   [Hemizonia angustifolia]
                                                   [Hemizonia corymbosa subsp. corymbosa]
                                                   [Hemizonia corymbosa subsp. macrocephala]
                                                   [Hemizonia corymbosa]
                                                   [Zonanthemis corymbosa]
                                               Deinandra corymbosa subsp. corymbosa
                                             Deinandra fasciculata
                                                   [Deinandra fasciculata subsp. fasciculata]
                                                   [Deinandra fasciculata subsp. ramosissima]
                                                   [Deinandra ramosissima]
                                                   [Hartmannia fasciculata]
                                                   [Hartmannia glomerata]
                                                   [Hemizonia fasciculata subsp. fasciculata]
                                                   [Hemizonia fasciculata subsp. ramosissima]
                                                   [Hemizonia fasciculata var. fasciculata]
                                                   [Hemizonia fasciculata var. ramosissima]
                                                   [Hemizonia fasciculata]
                                                   [Hemizonia ramosissima]
                                             Deinandra floribunda
                                                   [Hemizonia floribunda]
                                             Deinandra frutescens
                                                   [Hemizonia frutescens]
                                             Deinandra greeneana
                                                   [Hemizonia greeneana]
                                               Deinandra greeneana var. peninsularis
                                                     [Hemizonia greeneana subsp. peninsularis]
                                             Deinandra halliana
                                                   [Hemizonia halliana]
                                             Deinandra increscens
                                                   [Hemizonia increscens]
                                               Deinandra increscens subsp. increscens
                                                     [Hemizonia angustifolia var. barclayi]
                                                     [Hemizonia increscens subsp. increscens]
                                                     [Hemizonia increscens]
                                                     [Hemizonia paniculata subsp. increscens]
                                               Deinandra increscens subsp. villosa
                                                     [Hemizonia increscens subsp. villosa]
                                             Deinandra kelloggii
                                                   [Hemizonia kelloggii]
                                             Deinandra lobbii
                                                   [Deinandra lobbii subsp. lobbii]
                                                   [Deinandra lobbii subsp. pentactis]
                                                   [Hemizonia fasciculata subsp. lobbii]
                                                   [Hemizonia fasciculata var. lobbii]
                                                   [Hemizonia lobbii subsp. lobbii]
                                                   [Hemizonia lobbii]
                                             Deinandra martirensis
                                                   [Hemizonia martirensis]
                                             Deinandra minthornii
                                                   [Hemizonia minthornii]
                                             Deinandra mohavensis
                                                   [Hemizonia mohavensis]
                                             Deinandra pallida
                                                   [Hemizonia pallida]
                                             Deinandra palmeri
                                                   [Hemizonia palmeri]
                                             Deinandra paniculata
                                                   [Deinandra increscens subsp. foliosa]
                                                   [Hemizonia increscens subsp. foliosa]
                                                   [Hemizonia paniculata subsp. cruzensis]
                                                   [Hemizonia paniculata subsp. foliosa]
                                                   [Hemizonia paniculata subsp. paniculata]
                                                   [Hemizonia paniculata]
                                             Deinandra peninsularis
                                                   [Deinandra greeneana subsp. peninsularis]
                                             Deinandra pentactis
                                                   [Hemizonia lobbii subsp. pentactis]
                                                   [Hemizonia pentactis]
                                             Deinandra streetsii
                                                   [Hemizonia streetsii]
                                     Delairea
                                             Delairea odorata
                                                   [Senecio mikanioides]
                                     Delilia
                                             Delilia biflora
                                                   [Elvira biflora]
                                             Delilia repens
                                     Dendrophorbium
                                             Dendrophorbium argutidentatum
                                                   [Senecio argutidentatus]
                                             Dendrophorbium floribundum
                                             Dendrophorbium goodspeedii
                                                   [Senecio goodspeedii]
                                             Dendrophorbium lloense
                                     Dendroseris
                                     Dendroviguiera
                                             Dendroviguiera adenophylla
                                                   [Viguiera adenophylla]
                                             Dendroviguiera eriophora
                                                   [Viguiera eriophora]
                                             Dendroviguiera insignis
                                                   [Viguiera insignis]
                                             Dendroviguiera pringlei
                                                   [Encelia pringlei]
                                                   [Viguiera trachyphylla]
                                             Dendroviguiera puruana
                                                   [Viguiera blakei]
                                                   [Viguiera puruana]
                                             Dendroviguiera quinqueradiata
                                                   [Viguiera quinqueradiata]
                                             Dendroviguiera sphaerocephala
                                                   [Encelia squarrosa]
                                     Desmanthodium
                                             Desmanthodium fruticosum
                                             Desmanthodium hintoniorum
                                             Desmanthodium lanceolatum
                                             Desmanthodium ovatum
                                             Desmanthodium perfoliatum
                                             Desmanthodium tomentosum
                                     Diaperia
                                             Diaperia candida
                                             Diaperia prolifera
                                                   [Evax prolifera]
                                             Diaperia verna
                                                   [Evax multicaulis var. multicaulis]
                                                   [Evax multicaulis]
                                                   [Evax verna]
                                               Diaperia verna var. drummondii
                                                     [Evax multicaulis var. drummondii]
                                               Diaperia verna var. verna
                                     Dichaeta
                                     Dichaetophora
                                             Dichaetophora campestris
                                     Dichrocephala
                                             Dichrocephala benthamii
                                             Dichrocephala chrysanthemifolia
                                               Dichrocephala chrysanthemifolia var. alpina
                                             Dichrocephala integrifolia
                                               Dichrocephala integrifolia subsp. integrifolia
                                                     [Dichrocephala latifolia]
                                     Dicoma
                                             Dicoma anomala
                                               Dicoma anomala subsp. gerrardii
                                             Dicoma capensis
                                             Dicoma dinteri
                                             Dicoma galpinii
                                             Dicoma incana
                                             Dicoma schinzii
                                             Dicoma swazilandica
                                             Dicoma tomentosa
                              Dicomoideae
                                     Erythrocephalum
                                             Erythrocephalum longifolium
                                                   [Erythrocephalum zambesianum]
                                             Erythrocephalum marginatum
                                     Macledium
                                             Macledium plantaginifolium
                                             Macledium sessiliflorum
                                             Macledium spinosum
                                             Macledium zeyheri
                                     Pleiotaxis
                                             Pleiotaxis dewevrei
                                             Pleiotaxis pulcherrima
                                     Dicoria
                                             Dicoria argentea
                                             Dicoria canescens
                                                   [Dicoria canescens subsp. canescens]
                                                   [Dicoria canescens subsp. clarkae]
                                                   [Dicoria canescens subsp. clarkiae]
                                                   [Dicoria canescens subsp. hispidula]
                                                   [Dicoria canescens var. canescens]
                                               Dicoria canescens subsp. brandegeei
                                                     [Dicoria brandegeei]
                                                     [Dicoria canescens subsp. brandegei]
                                                     [Dicoria paniculata]
                                               Dicoria canescens subsp. clarkiae
                                                     [Dicoria clarkiae]
                                               Dicoria canescens subsp. hispidula
                                                     [Dicoria hispidula]
                                               Dicoria canescens subsp. wetherillii
                                                     [Dicoria wetherillii]
                                     Dicranocarpus
                                             Dicranocarpus parviflorus
                                     Dielitzia
                                             Dielitzia tysonii
                                     Dieteria
                                             Dieteria asteroides
                                                   [Machaeranthera asteroides var. asteroides]
                                                   [Machaeranthera asteroides]
                                                   [Machaeranthera canescens var. latifolia]
                                                   [Machaeranthera pruinosa]
                                                   [Machaeranthera tephrodes]
                                               Dieteria asteroides var. asteroides
                                                     [Machaeranthera asteroides var. asteroides]
                                                     [Machaeranthera verna]
                                               Dieteria asteroides var. glandulosa
                                                     [Machaeranthera asteroides var. glandulosa]
                                               Dieteria asteroides var. lagunensis
                                                     [Machaeranthera asteroides var. lagunensis]
                                                     [Machaeranthera lagunensis]
                                             Dieteria bigelovii
                                                   [Aster bigelovii]
                                                   [Aster rubrotinctus]
                                                   [Machaeranthera aquifolia]
                                                   [Machaeranthera aspera]
                                                   [Machaeranthera bigelovii]
                                                   [Machaeranthera pattersonii]
                                                   [Machaeranthera spectabilis]
                                                   [Machaeranthera varians]
                                               Dieteria bigelovii var. bigelovii
                                               Dieteria bigelovii var. commixta
                                                     [Machaeranthera commixta]
                                                     [Machaeranthera superba]
                                               Dieteria bigelovii var. mucronata
                                                     [Aster adenolepis]
                                                     [Machaeranthera mucronata]
                                             Dieteria canescens
                                                   [Aster canescens]
                                                   [Machaeranthera attenuata]
                                                   [Machaeranthera canescens var. monticola]
                                                   [Machaeranthera canescens]
                                                   [Machaeranthera glabella]
                                                   [Machaeranthera hiemalis]
                                                   [Machaeranthera inops var. atrata]
                                                   [Machaeranthera inops]
                                                   [Machaeranthera magna]
                                                   [Machaeranthera spinulosa]
                                                   [Machaeranthera viscosa]
                                               Dieteria canescens var. ambigua
                                                     [Machaeranthera canescens var. ambigua]
                                               Dieteria canescens var. aristata
                                                     [Machaeranthera canescens var. aristata]
                                               Dieteria canescens var. canescens
                                                     [Dieteria canescens subsp. canescens]
                                                     [Machaeranthera canescens subsp. canescens]
                                                     [Machaeranthera canescens var. canescens]
                                                     [Machaeranthera laetevirens]
                                                     [Machaeranthera montana]
                                                     [Machaeranthera ramosa]
                                               Dieteria canescens var. glabra
                                                     [Aster cichoriaceus]
                                                     [Machaeranthera canescens subsp. glabra]
                                                     [Machaeranthera canescens var. glabra]
                                                     [Machaeranthera cichoriacea]
                                                     [Machaeranthera linearis]
                                               Dieteria canescens var. incana
                                                     [Machaeranthera canescens var. incana]
                                               Dieteria canescens var. leucanthemifolia
                                                     [Aster leucanthemifolius]
                                                     [Machaeranthera canescens var. leucanthemifolia]
                                                     [Machaeranthera leucanthemifolia]
                                               Dieteria canescens var. nebraskana
                                                     [Machaeranthera canescens var. nebraskana]
                                               Dieteria canescens var. shastensis
                                                     [Aster inornatus]
                                                     [Aster shastensis]
                                                     [Dieteria shastensis]
                                                     [Machaeranthera canescens var. shastensis]
                                                     [Machaeranthera shastensis var. shastensis]
                                                     [Machaeranthera shastensis]
                                               Dieteria canescens var. ziegleri
                                                     [Machaeranthera canescens subsp. ziegleri]
                                                     [Machaeranthera canescens var. ziegleri]
                                     Digitacalia
                                             Digitacalia chiapensis
                                             Digitacalia jatrophoides
                                     Dimeresia
                                             Dimeresia howellii
                                                   [Ereminula howellii]
                                     Dimerostemma
                                             Dimerostemma episcopale
                                                   [Oyedaea episcopalis]
                                             Dimerostemma grazielae
                                     Dimorphanthes
                                     Dimorphotheca
                                             Dimorphotheca acutifolia
                                             Dimorphotheca cuneata
                                             Dimorphotheca ecklonis
                                                   [Osteospermum ecklonis]
                                             Dimorphotheca fruticosa
                                                   [Calendula fruticosa]
                                                   [Osteospermum fruticosum]
                                             Dimorphotheca jucunda
                                             Dimorphotheca nudicaulis
                                             Dimorphotheca pinnata
                                                   [Osteospermum pinnatum]
                                             Dimorphotheca pluvialis
                                             Dimorphotheca sinuata
                                             Dimorphotheca tragus
                                                   [Dimorphotheca aurantiaca]
                                             Dimorphotheca zeyheri
                                     Diplazoptilon
                                     Diplopappus
                                     Diplosastera
                                     Diplostephium
                                             Diplostephium callaense
                                             Diplostephium ericoides
                                                   [Diplostephium lavandulifolium]
                                             Diplostephium floribundum
                                             Diplostephium glandulosum
                                             Diplostephium goodspeedii
                                             Diplostephium gynoxyoides
                                             Diplostephium hartwegii
                                             Diplostephium peruvianum
                                             Diplostephium rupestre
                                     Distasis
                                     Distephanus
                                             Distephanus angolensis
                                             Distephanus eriophyllus
                                                   [Vernonia eriophylla]
                                             Distephanus garnierianus
                                                   [Vernonia garnieriana]
                                             Distephanus polygalifolius
                                     Disynaphia
                                             Disynaphia praeficta
                                             Disynaphia radula
                                                   [Eupatorium radula var. obtusifolium]
                                                   [Eupatorium radula var. serratum]
                                                   [Eupatorium radula]
                                     Dittrichia
                                             Dittrichia graveolens
                                                   [Erigeron graveolens]
                                                   [Inula graveolens]
                                             Dittrichia viscosa
                                     Doellingeria
                                             Doellingeria breweri
                                                   [Aster breweri]
                                                   [Chrysopsis breweri]
                                                   [Chrysopsis wrightii]
                                             Doellingeria elegans
                                             Doellingeria engelmannii
                                                   [Aster engelmannii]
                                                   [Doellingeria engelmanni]
                                                   [Eucephalus engelmannii]
                                             Doellingeria glabrata
                                                   [Aster brickellioides var. glabratus]
                                                   [Aster glabratus]
                                                   [Aster siskiyouensis]
                                                   [Eucephalus glabratus]
                                                   [Eucephalus glandulosus]
                                             Doellingeria glaucescens
                                                   [Eucephalus glaucescens]
                                                   [Eucephalus macounii]
                                             Doellingeria infirma
                                                   [Aster infirmus]
                                                   [Doellingeria humilis]
                                             Doellingeria ledophylla
                                                   [Eucephalus ledophyllus]
                                               Doellingeria ledophylla var. covillei
                                                     [Aster ledophyllus var. covillei]
                                                     [Eucephalus ledophyllus var. covillei]
                                               Doellingeria ledophylla var. ledophylla
                                                     [Eucephalus ledophyllus var. ledophyllus]
                                             Doellingeria paucicapitata
                                                   [Eucephalus paucicapitatus]
                                             Doellingeria tomentella
                                                   [Aster brickellioides var. brickellioides]
                                                   [Aster brickellioides]
                                                   [Aster tomentellus]
                                                   [Eucephalus bicolor]
                                                   [Eucephalus brickellioides]
                                                   [Eucephalus tomentellus]
                                                   [Sericocarpus tomentellus]
                                             Doellingeria umbellata
                                                   [Aster umbellatus]
                                                   [Diplopappus umbellatus]
                                               Doellingeria umbellata var. pubens
                                                     [Aster umbellatus var. pubens]
                                             Doellingeria vialis
                                                   [Eucephalus vialis]
                                     Dolomiaea
                                             Dolomiaea edulis
                                             Dolomiaea salwinensis
                                     Doniophyton
                                             Doniophyton anomalum
                                                   [Doniophyton andicola]
                                     Dorobaea
                                             Dorobaea pimpinellifolia
                                     Doronicum
                                             Doronicum austriacum
                                             Doronicum calotum
                                                   [Doronicum thibetanum]
                                             Doronicum carpetanum
                                             Doronicum clusii
                                             Doronicum glaciale
                                             Doronicum grandiflorum
                                               Doronicum grandiflorum subsp. grandiflorum
                                                     [Arnica alpina]
                                             Doronicum hungaricum
                                             Doronicum pardalianches
                                             Doronicum plantagineum
                                     Dracopis
                                     Dubautia
                                             Dubautia carrii
                                             Dubautia ciliolata
                                               Dubautia ciliolata subsp. ciliolata
                                               Dubautia ciliolata subsp. glutinosa
                                             Dubautia imbricata
                                             Dubautia kalalauensis
                                             Dubautia knudsenii
                                             Dubautia latifolia
                                             Dubautia laxa
                                               Dubautia laxa subsp. bryanii
                                                     [Dubautia laxa var. bryanii]
                                               Dubautia laxa subsp. hirsuta
                                                     [Dubautia laxa var. hirsuta]
                                             Dubautia linearis
                                               Dubautia linearis subsp. linearis
                                             Dubautia menziesii
                                             Dubautia paleata
                                             Dubautia pauciflorula
                                             Dubautia plantaginea
                                               Dubautia plantaginea subsp. plantaginea
                                             Dubautia platyphylla
                                             Dubautia raillardioides
                                             Dubautia reticulata
                                             Dubautia scabra
                                               Dubautia scabra subsp. leiophylla
                                               Dubautia scabra subsp. scabra
                                             Dubautia sherffiana
                                                   [Railliardia sherffiana]
                                             Dubautia waialealae
                                     Dubyaea
                                             Dubyaea amoena
                                             Dubyaea atropurpurea
                                             Dubyaea gombalana
                                             Dubyaea hispida
                                             Dubyaea rubra
                                             Dubyaea tsarongensis
                                                   [Dubyaea chimiliensis]
                                     Dugaldia
                                     Dugesia
                                             Dugesia mexicana
                                     Duhaldea
                                             Duhaldea cappa
                                                   [Inula cappa]
                                             Duhaldea eupatorioides
                                             Duhaldea nervosa
                                     Duseniella
                                             Duseniella patagonica
                                     Dyscritothamnus
                                             Dyscritothamnus filifolius
                                     Dysodiopsis
                                             Dysodiopsis tagetoides
                                                   [Dyssodia tagetoides]
                                                   [Hymenatherum tagetoides]
                                                   [Thymophylla tagetoides]
                                     Dyssodia
                                             Dyssodia appendiculata
                                             Dyssodia decipiens
                                                   [Dyssodia sanguinea]
                                             Dyssodia papposa
                                                   [Boebera papposa]
                                                   [Dyssodia chrysanthemoides]
                                                   [Dyssodia fastigiata]
                                                   [Tagetes papposa]
                                             Dyssodia pinnata
                                               Dyssodia pinnata var. glabrescens
                                               Dyssodia pinnata var. pinnata
                                             Dyssodia tagetiflora
                                     Eastwoodia
                                             Eastwoodia elegans
                                     Eatonella
                                             Eatonella congdoni
                                             Eatonella nivea
                                                   [Actinolepis nivea]
                                                   [Burrielia nivea]
                                     Echinacea
                                             Echinacea angustifolia
                                                   [Brauneria angustifolia]
                                                   [Echinacea pallida var. angustifolia]
                                             Echinacea atrorubens
                                             Echinacea laevigata
                                             Echinacea pallida
                                                   [Brauneria pallida]
                                             Echinacea paradoxa
                                                   [Brauneria paradoxa]
                                             Echinacea purpurea
                                                   [Brauneria purpurea]
                                                   [Rudbeckia purpurea]
                                                   [Rudbeckia serotina]
                                             Echinacea sanguinea
                                     Echinops
                                             Echinops amplexicaulis
                                             Echinops bovei
                                             Echinops echinatus
                                             Echinops eryngiifolius
                                             Echinops exaltatus
                                             Echinops fontqueri
                                             Echinops graecus
                                             Echinops longifolius
                                             Echinops ritro
                                             Echinops sphaerocephalus
                                             Echinops spinosus
                                             Echinops strigosus
                                             Echinops tjanschanicus
                                     Eclipta
                                             Eclipta platyglossa
                                             Eclipta prostrata
                                                   [Anthemis foetida]
                                                   [Cotula prostrata]
                                                   [Eclipta alba var. prostrata]
                                                   [Eclipta alba]
                                                   [Ecliptica alba var. prostrata]
                                                   [Eleutheranthera prostrata]
                                                   [Verbesina prostrata]
                                             Eclipta pusilla
                                     Ecliptica
                                             Ecliptica alba
                                     Egletes
                                             Egletes liebmannii
                                             Egletes prostrata
                                             Egletes viscosa
                                                   [Egletes viscosa var. dissecta]
                                     Electranthera
                                             Electranthera cuneifolia
                                                   [Coreopsis cuneifolia]
                                             Electranthera mutica
                                                   [Coreopsis mutica]
                                               Electranthera mutica var. carnosifolia
                                                     [Coreopsis mutica var. carnosifolia]
                                               Electranthera mutica var. mexicana
                                                     [Coreopsis mexicana]
                                               Electranthera mutica var. microcephala
                                                     [Coreopsis mutica var. microcephala]
                                     Elephantopus
                                             Elephantopus carolinianus
                                             Elephantopus elatus
                                             Elephantopus mollis
                                             Elephantopus nudatus
                                             Elephantopus pratensis
                                             Elephantopus scaber
                                               Elephantopus scaber var. plurisetus
                                                     [Elephantopus scaber subsp. plurisetus]
                                             Elephantopus tomentosus
                                     Eleutheranthera
                                             Eleutheranthera ruderalis
                                     Emilia
                                             Emilia abyssinica
                                                   [Senecio bellidifolius]
                                             Emilia alstonii
                                             Emilia baldwinii
                                             Emilia basifolia
                                             Emilia citrina
                                             Emilia exserta
                                             Emilia fosbergii
                                                   [Emilia coccinea]
                                             Emilia graminea
                                             Emilia humifusa
                                             Emilia integrifolia
                                             Emilia javanica
                                                   [Emilia flammea]
                                                   [Emilia sagittata]
                                                   [Emilia sonchifolia var. javanica]
                                             Emilia marlothiana
                                             Emilia prenanthoidea
                                             Emilia scabra
                                             Emilia schinzii
                                                   [Emilia ambifaria]
                                             Emilia sonchifolia
                                             Emilia zeylanica
                                               Emilia zeylanica var. walkeri
                                     Encelia
                                             Encelia actoni
                                                   [Encelia actonii]
                                                   [Encelia frutescens var. actoni]
                                                   [Encelia frutescens var. actonii]
                                                   [Encelia virginensis subsp. actoni]
                                                   [Encelia virginensis subsp. actonii]
                                                   [Encelia virginensis var. actoni]
                                                   [Encelia virginensis var. actonii]
                                             Encelia asperifolia
                                                   [Encelia californica var. asperifolia]
                                             Encelia balandra
                                             Encelia californica
                                               Encelia californica var. californica
                                             Encelia californica x farinosa
                                             Encelia canescens
                                               Encelia canescens var. oblongifolia
                                                     [Encelia oblongifolia]
                                             Encelia conspersa
                                             Encelia densifolia
                                             Encelia farinosa
                                             Encelia farinosa X frutescens
                                               Encelia farinosa var. farinosa
                                                     [Encelia farinosa var. radians]
                                                     [Encelia radians]
                                               Encelia farinosa var. phenicodonta
                                                     [Encelia farinosa f. phenicodonta]
                                             Encelia frutescens
                                                   [Encelia frutescens f. ovata]
                                                   [Encelia frutescens subsp. frutescens]
                                                   [Encelia frutescens var. frutescens]
                                                   [Simsia frutescens]
                                             Encelia glandulosa
                                                   [Encelia frutescens subsp. glandulosa]
                                             Encelia halimifolia
                                             Encelia hispida
                                             Encelia laciniata
                                             Encelia nutans
                                                   [Enceliopsis nutans]
                                             Encelia palmeri
                                             Encelia ravenii
                                             Encelia resinifera
                                                   [Encelia frutescens f. radiata]
                                                   [Encelia frutescens var. resinosa]
                                                   [Encelia resinifera subsp. tenuifolia]
                                               Encelia resinifera subsp. resinifera
                                             Encelia scaposa
                                                   [Encelia lineariloba]
                                                   [Encelia scaposa var. stenophylla]
                                             Encelia stenophylla
                                             Encelia ventorum
                                             Encelia virginensis
                                                   [Encelia frutescens var. virginensis]
                                                   [Encelia virginensis subsp. virginensis]
                                                   [Encelia virginensis var. virginensis]
                                     Enceliopsis
                                             Enceliopsis argophylla
                                                   [Encelia argophylla]
                                                   [Helianthella argophylla]
                                             Enceliopsis covillei
                                                   [Enceliopsis argophylla var. grandiflora]
                                                   [Helianthella covillei]
                                             Enceliopsis nudicaulis
                                                   [Encelia nudicaulis]
                                                   [Enceliopsis nudicaulis var. bairdii]
                                                   [Enceliopsis nudicaulis var. corrugata]
                                                   [Enceliopsis nudicaulis var. nudicaulis]
                                                   [Enceliopsis tuta]
                                                   [Helianthella nudicaulis]
                                     Engelmannia
                                             Engelmannia peristenia
                                             Engelmannia pinnatifida
                                     Enydra
                                             Enydra fluctuans
                                                   [Enydra paludosa]
                                             Enydra sessilifolia
                                                   [Enydra maritima]
                                     Epaltes
                                             Epaltes mexicana
                                     Erato
                                             Erato costaricensis
                                             Erato polymnioides
                                     Erechtites
                                             Erechtites goyazensis
                                                   [Erechtites missionum var. lanceolatus]
                                             Erechtites hieraciifolius
                                                   [Erechtites hieracifolia]
                                                   [Erechtites hieracifolius]
                                                   [Erechtites hieraciifolia]
                                                   [Senecio hieracifolius]
                                                   [Senecio hieraciifolius]
                                               Erechtites hieraciifolius var. cacalioides
                                                     [Erechtites hieracifolius var. cacalioides]
                                                     [Erechtites hieraciifolia var. cacalioides]
                                               Erechtites hieraciifolius var. hieraciifolius
                                                     [Erechtites hieracifolia var. hieracifolia]
                                                     [Erechtites hieracifolia var. intermedia]
                                                     [Erechtites hieracifolia var. praealta]
                                                     [Erechtites hieracifolius var. hieracifolius]
                                                     [Erechtites hieraciifolia var. hieraciifolia]
                                                     [Erechtites hieraciifolia var. intermedia]
                                                     [Erechtites hieraciifolius var. intermedius]
                                                     [Erechtites hieraciifolius var. praealtus]
                                                     [Senecio hieracifolius var. hieracifolius]
                                                     [Senecio hieraciifolius var. giganteus]
                                                     [Senecio hieraciifolius var. hieraciifolius]
                                               Erechtites hieraciifolius var. megalocarpus
                                             Erechtites hispidulus
                                                   [Erechtites hispidula]
                                                   [Senecio hispidulus]
                                             Erechtites minimus
                                                   [Erechtites minima]
                                                   [Senecio minimus]
                                             Erechtites prenanthoides
                                             Erechtites valerianifolius
                                                   [Erechtites valerianaefolius]
                                                   [Erechtites valerianifolia]
                                                   [Senecio valerianifolius]
                                     Eremanthus
                                             Eremanthus argenteus
                                             Eremanthus bicolor
                                             Eremanthus crotonoides
                                             Eremanthus uniflorus
                                     Eremiastrum
                                     Ereminula
                                     Eremohylema
                                     Eremonanus
                                     Eremosis
                                             Eremosis aristifera
                                                   [Vernonia aristifera]
                                             Eremosis baadii
                                                   [Vernonia salicifolia var. baadii]
                                             Eremosis barbinervis
                                                   [Vernonia barbinervis]
                                             Eremosis corymbosa
                                                   [Vernonia salicifolia]
                                                   [Vernonia uniflora]
                                             Eremosis foliosa
                                                   [Critoniopsis foliosa]
                                                   [Vernonia callilepis]
                                                   [Vernonia mucronata]
                                             Eremosis heydeana
                                                   [Vernonia heydeana]
                                             Eremosis leiocarpa
                                                   [Vernonia leiocarpa]
                                             Eremosis littoralis
                                                   [Vernonia littoralis]
                                             Eremosis obtusa
                                                   [Vernonia obtusa]
                                             Eremosis pallens
                                                   [Vernonia michoacana]
                                             Eremosis palmeri
                                                   [Vernonia palmeri]
                                                   [Vernonia triflosculosa var. palmeri]
                                             Eremosis pugana
                                                   [Vernonia pugana]
                                             Eremosis shannonii
                                                   [Vernonia shannonii]
                                             Eremosis solorzanoana
                                                   [Vernonia solorzanoana]
                                             Eremosis steetzii
                                                   [Vernonia steetzii]
                                             Eremosis tarchonanthifolia
                                                   [Vernonia purpurascens]
                                                   [Vernonia tarchonanthifolia]
                                             Eremosis tomentosa
                                                   [Vernonia paniculata]
                                             Eremosis triflosculosa
                                                   [Vernonia triflosculosa]
                                             Eremosis villaregalis
                                                   [Vernonia tequilana]
                                     Ericameria
                                             Ericameria albida
                                                   [Bigelovia albida]
                                                   [Bigelowia albida]
                                                   [Chrysothamnus albidus]
                                             Ericameria arborescens
                                                   [Bigelovia arborescens]
                                                   [Bigelowia arborescens]
                                                   [Chrysoma arborescens]
                                                   [Haplopappus arborescens]
                                                   [Linosyris arborescens]
                                               Ericameria arborescens subsp. arborescens
                                             Ericameria bloomeri
                                                   [Aplopappus bloomeri]
                                                   [Aster bloomeri]
                                                   [Chrysothamnus bloomeri]
                                                   [Haplopappus bloomeri var. angustatus]
                                                   [Haplopappus bloomeri var. sonnei]
                                                   [Haplopappus bloomeri]
                                             Ericameria bolanderi
                                                   [Chrysothamnus bolanderi]
                                             Ericameria brachylepis
                                                   [Aster brachylepis]
                                                   [Bigelovia brachylepis]
                                                   [Bigelowia brachylepis]
                                                   [Chrysoma brachylepis]
                                                   [Haplopappus brachylepis]
                                                   [Haplopappus propinquus]
                                             Ericameria cervina
                                                   [Haplopappus cervinus]
                                             Ericameria compacta
                                                   [Haplopappus bloomeri subsp. compactus]
                                                   [Haplopappus bloomeri var. compactus]
                                             Ericameria cooperi
                                                   [Ericameria monactis]
                                                   [Haplopappus cooperi]
                                                   [Haplopappus monactis]
                                               Ericameria cooperi subsp. cooperi
                                               Ericameria cooperi var. bajacalifornica
                                                     [Ericameria cooperi subsp. bajacalifornica]
                                               Ericameria cooperi var. cooperi
                                                     [Bigelovia cooperi]
                                                     [Bigelowia cooperi]
                                                     [Ericameria cooperi subsp. cooperi]
                                             Ericameria crispa
                                                   [Haplopappus crispus]
                                             Ericameria cuneata
                                                   [Aster cuneatus]
                                                   [Chrysoma cuneata]
                                                   [Haplopappus cuneatus]
                                               Ericameria cuneata var. cuneata
                                               Ericameria cuneata var. macrocephala
                                               Ericameria cuneata var. spathulata
                                                     [Aplopappus cuneatus var. spathulatus]
                                                     [Chrysoma cuneata var. spathulata]
                                                     [Ericameria cuneata subsp. spathulata]
                                                     [Haplopappus cuneatus var. spathulatus]
                                             Ericameria discoidea
                                                   [Ericameria discoidea var. discoidea]
                                                   [Haplopappus discoideus]
                                                   [Haplopappus macronema]
                                                   [Macronema discoidea]
                                             Ericameria ericoides
                                                   [Chrysoma ericoides]
                                                   [Diplopappus ericoides]
                                                   [Ericameria ericoides var. ericoides]
                                                   [Haplopappus ericoides subsp. blakei]
                                                   [Haplopappus ericoides subsp. ericoides]
                                                   [Haplopappus ericoides]
                                             Ericameria fasciculata
                                                   [Chrysoma fasciculata]
                                                   [Haplopappus eastwoodiae]
                                             Ericameria gilmanii
                                                   [Haplopappus gilmanii]
                                             Ericameria greenei
                                                   [Aster greenei]
                                                   [Haplopappus bloomeri var. greenei]
                                                   [Haplopappus greenei]
                                                   [Haplopappus mollis]
                                                   [Macronema greenei]
                                             Ericameria juarezensis
                                                   [Haplopappus juarezensis]
                                             Ericameria laricifolia
                                                   [Aster laricifolius]
                                                   [Chrysocoma laricifolia]
                                                   [Chrysoma laricifolia]
                                                   [Haplopappus laricifolius]
                                             Ericameria linearifolia
                                                   [Aplopappus linearifolius]
                                                   [Aster linearifolius]
                                                   [Haplopappus interior]
                                                   [Haplopappus linearifolius subsp. interior]
                                                   [Haplopappus linearifolius var. interior]
                                                   [Haplopappus linearifolius]
                                                   [Stenotopsis linearifolia]
                                                   [Stenotopsis linearifolius]
                                                   [Stenotus linearifolius]
                                             Ericameria linearis
                                                   [Macronema lineare]
                                             Ericameria martirensis
                                                   [Haplopappus martirensis]
                                             Ericameria nana
                                                   [Chrysoma nana]
                                                   [Chrysothamnus nanus]
                                                   [Haplopappus nanus]
                                             Ericameria nauseosa
                                                   [Chondrophora nauseosa]
                                                   [Chrysocoma nauseosa]
                                                   [Chrysothamnus californicus var. occidentalis]
                                                   [Chrysothamnus californicus]
                                                   [Chrysothamnus frigidus]
                                                   [Chrysothamnus nauseosus var. macrophyllus]
                                                   [Chrysothamnus nauseosus var. nauseosus]
                                                   [Chrysothamnus nauseosus]
                                                   [Chrysothamnus plattensis]
                                                   [Chrysothamnus pulcherrimus]
                                               Ericameria nauseosa subsp. nauseosa
                                               Ericameria nauseosa var. arenaria
                                                     [Chrysothamnus nauseosus subsp. arenarius]
                                                     [Chrysothamnus nauseosus var. arenarius]
                                               Ericameria nauseosa var. bernardina
                                                     [Chrysothamnus nauseosus subsp. bernardinus]
                                                     [Chrysothamnus nauseosus var. bernardinus]
                                               Ericameria nauseosa var. bigelovii
                                                     [Chrysothamnus nauseosus subsp. bigelovii]
                                                     [Chrysothamnus nauseosus subsp. bigelowii]
                                                     [Chrysothamnus nauseosus var. bigelovii]
                                                     [Ericameria nauseosa var. bigelowii]
                                               Ericameria nauseosa var. ceruminosa
                                                     [Chrysothamnus nauseosus subsp. ceruminosus]
                                                     [Chrysothamnus nauseosus subsp. consimilis]
                                                     [Chrysothamnus nauseosus var. ceruminosus]
                                                     [Linosyris ceruminosa]
                                                     [Linosyris ceruminosus]
                                               Ericameria nauseosa var. glabrata
                                               Ericameria nauseosa var. graveolens
                                                     [Bigelowia graveolens]
                                                     [Chrysothamnus nauseosus subsp. graveolens]
                                                     [Chrysothamnus nauseosus var. graveolens]
                                                     [Chrysothamnus nauseosus var. petrophilus]
                                               Ericameria nauseosa var. hololeuca
                                                     [Bigelowia graveolens var. hololeuca]
                                                     [Chrysothamnus nauseosus subsp. gnaphalodes]
                                                     [Chrysothamnus nauseosus subsp. hololeucus]
                                                     [Chrysothamnus nauseosus var. gnaphalodes]
                                                     [Chrysothamnus nauseosus var. hololeucus]
                                               Ericameria nauseosa var. iridis
                                                     [Chrysothamnus nauseosus subsp. iridis]
                                               Ericameria nauseosa var. juncea
                                                     [Bigelowia juncea]
                                                     [Chrysothamnus nauseosus subsp. junceus]
                                               Ericameria nauseosa var. latisquamea
                                                     [Bigelowia graveolens var. latisquameus]
                                                     [Chrysothamnus nauseosus subsp. latisquameus]
                                               Ericameria nauseosa var. leiosperma
                                                     [Bigelowia leiosperma]
                                                     [Chrysothamnus nauseosus subsp. leiospermus]
                                                     [Chrysothamnus nauseosus var. leiospermus]
                                               Ericameria nauseosa var. mohavensis
                                                     [Bigelowia mohavensis]
                                                     [Chrysothamnus nauseosus subsp. mohavensis]
                                                     [Chrysothamnus nauseosus var. mohavensis]
                                               Ericameria nauseosa var. nana
                                                     [Chrysothamnus nauseosus var. nanus]
                                               Ericameria nauseosa var. nauseosa
                                                     [Chrysothamnus nauseosus subsp. nauseosus]
                                                     [Chrysothamnus nauseosus var. nauseosus]
                                               Ericameria nauseosa var. nitida
                                                     [Chrysothamnus nauseosus subsp. nitidus]
                                               Ericameria nauseosa var. oreophila
                                                     [Chrysothamnus nauseosus subsp. consimilis]
                                                     [Chrysothamnus nauseosus subsp. pinifolius]
                                                     [Chrysothamnus nauseosus subsp. viridulus]
                                                     [Chrysothamnus nauseosus var. consimilis]
                                                     [Chrysothamnus nauseosus var. oreophilus]
                                                     [Chrysothamnus nauseosus var. viridulus]
                                                     [Chrysothamnus oreophilus var. artus]
                                                     [Chrysothamnus oreophilus]
                                                     [Ericameria nauseosa subsp. consimilis]
                                                     [Ericameria nauseosa var. arta]
                                               Ericameria nauseosa var. psilocarpa
                                                     [Chrysothamnus nauseosus var. psilocarpus]
                                               Ericameria nauseosa var. salicifolia
                                                     [Chrysothamnus nauseosus subsp. salicifolius]
                                                     [Chrysothamnus nauseosus var. salicifolius]
                                               Ericameria nauseosa var. speciosa
                                                     [Chrysothamnus nauseosus subsp. albicaulis]
                                                     [Chrysothamnus nauseosus subsp. speciosus]
                                                     [Chrysothamnus nauseosus var. albicaulis]
                                                     [Chrysothamnus nauseosus var. speciosus]
                                                     [Chrysothamnus speciosus var. gnaphalodes]
                                                     [Chrysothamnus speciosus]
                                               Ericameria nauseosa var. texensis
                                                     [Chrysothamnus nauseosus subsp. texensis]
                                               Ericameria nauseosa var. turbinata
                                                     [Chrysothamnus nauseosus subsp. turbinatus]
                                               Ericameria nauseosa var. washoensis
                                                     [Chrysothamnus nauseosus subsp. washoensis]
                                                     [Chrysothamnus nauseosus var. washoensis]
                                             Ericameria obovata
                                                   [Haplopappus rydbergii]
                                                   [Macronema obovatum]
                                             Ericameria ophitidis
                                                   [Haplopappus bloomeri var. ophitidis]
                                                   [Haplopappus ophitidis]
                                             Ericameria palmeri
                                                   [Chrysoma palmeri]
                                                   [Haplopappus palmeri]
                                               Ericameria palmeri var. pachylepis
                                                     [Ericameria ericoides var. pachylepis]
                                                     [Haplopappus palmeri subsp. pachylepis]
                                                     [Haplopappus palmeri var. pachylepis]
                                               Ericameria palmeri var. palmeri
                                                     [Ericameria palmeri subsp. palmeri]
                                             Ericameria paniculata
                                                   [Bigelovia paniculata]
                                                   [Bigelowia paniculata]
                                                   [Chrysoma paniculata]
                                                   [Chrysothamnus paniculatus]
                                             Ericameria parishii
                                                   [Chrysoma parishii]
                                                   [Haplopappus parishii]
                                               Ericameria parishii var. parishii
                                                     [Bigelovia parishii]
                                                     [Bigelowia parishii]
                                                     [Chrysoma parishii]
                                                     [Ericameria arborescens subsp. parishii]
                                                     [Haplopappus arborescens subsp. parishii]
                                                     [Haplopappus parishii]
                                               Ericameria parishii var. peninsularis
                                                     [Haplopappus arborescens subsp. peninsularis]
                                             Ericameria parryi
                                                   [Bigelovia parryi]
                                                   [Bigelowia parryi]
                                                   [Chrysothamnus parryi subsp. parryi]
                                                   [Chrysothamnus parryi var. parryi]
                                                   [Chrysothamnus parryi]
                                                   [Linosyris parryi]
                                               Ericameria parryi var. affinis
                                                     [Chrysothamnus parryi subsp. affinis]
                                               Ericameria parryi var. aspera
                                                     [Chrysothamnus asper]
                                                     [Chrysothamnus parryi subsp. asper]
                                                     [Chrysothamnus parryi var. asper]
                                                     [Ericameria parryi var. aspra]
                                               Ericameria parryi var. attenuata
                                                     [Chrysothamnus parryi subsp. attenuatus]
                                                     [Chrysothamnus parryi var. attenuatus]
                                               Ericameria parryi var. howardii
                                                     [Chrysothamnus parryi subsp. howardii]
                                                     [Linosyris howardii]
                                               Ericameria parryi var. imula
                                                     [Chrysothamnus parryi subsp. imulus]
                                               Ericameria parryi var. latior
                                                     [Chrysothamnus parryi subsp. latior]
                                               Ericameria parryi var. monocephala
                                                     [Chrysothamnus parryi subsp. monocephalus]
                                                     [Chrysothamnus parryi var. monocephalus]
                                                     [Ericameria monocephala]
                                               Ericameria parryi var. montana
                                                     [Chrysothamnus parryi subsp. montanus]
                                               Ericameria parryi var. nevadensis
                                                     [Chrysothamnus parryi subsp. nevadensis]
                                                     [Chrysothamnus parryi var. nevadensis]
                                               Ericameria parryi var. parryi
                                               Ericameria parryi var. salmonensis
                                                     [Chrysothamnus parryi subsp. salmonensis]
                                               Ericameria parryi var. vulcanica
                                                     [Chrysothamnus parryi subsp. vulcanicus]
                                                     [Chrysothamnus vulcanicus]
                                             Ericameria pinifolia
                                                   [Chrysoma pinifolia]
                                                   [Haplopappus pinifolius]
                                             Ericameria resinosa
                                             Ericameria suffruticosa
                                                   [Aster suffruticosus]
                                                   [Haplopappus suffruticosus var. tenuis]
                                                   [Haplopappus suffruticosus]
                                                   [Macronema imbricata]
                                                   [Macronema suffruticosa]
                                             Ericameria teretifolia
                                                   [Bigelovia teretifolia]
                                                   [Bigelowia teretifolia]
                                                   [Chrysoma teretifolia]
                                                   [Chrysothamnus teretifolius]
                                                   [Linosyris teretifolia]
                                             Ericameria viscosa
                                                   [Chrysothamnus nauseosus subsp. viscosus]
                                             Ericameria watsonii
                                                   [Haplopappus watsonii]
                                             Ericameria zionis
                                                   [Haplopappus zionis]
                                             Ericameria × bolanderi
                                                   [Linosyris bolanderi]
                                             Ericameria × uintahensis
                                                   [Chrysothamnus nauseosus var. uintahensis]
                                     Ericentrodea
                                             Ericentrodea corazonensis
                                     Erigeron
                                             Erigeron abajoensis
                                             Erigeron acomanus
                                             Erigeron acris
                                                   [Trimorpha acris]
                                               Erigeron acris subsp. acris
                                                     [Erigeron acris var. asteroides]
                                               Erigeron acris subsp. kamtschaticus
                                                     [Erigeron acris var. kamtschaticus]
                                               Erigeron acris subsp. politus
                                               Erigeron acris var. kamtschaticus
                                             Erigeron aequifolius
                                             Erigeron affinis
                                             Erigeron algidus
                                                   [Erigeron petiolaris]
                                             Erigeron aliceae
                                                   [Erigeron amplifolius]
                                                   [Erigeron nemophilus]
                                             Erigeron alpicola
                                                   [Erigeron heterotrichus]
                                             Erigeron alpinus
                                             Erigeron annuus
                                                   [Aster annuus]
                                                   [Stenactis annua]
                                             Erigeron aphanactis
                                                   [Erigeron concinnus var. aphanactis]
                                               Erigeron aphanactis var. aphanactis
                                               Erigeron aphanactis var. congestus
                                                     [Erigeron congestus]
                                             Erigeron arenarioides
                                             Erigeron argentatus
                                                   [Wyomingia argentata]
                                             Erigeron arisolius
                                             Erigeron arizonicus
                                                   [Erigeron rusbyi]
                                             Erigeron asperugineus
                                                   [Erigeron elkoensis]
                                             Erigeron astranthioides
                                             Erigeron aureus
                                             Erigeron barbellulatus
                                             Erigeron basalticus
                                             Erigeron basaseachensis
                                             Erigeron basilobatus
                                             Erigeron bellidiastrum
                                             Erigeron bellioides
                                             Erigeron bigelovii
                                             Erigeron biolettii
                                                   [Erigeron inornatus var. biolettii]
                                             Erigeron blochmaniae
                                                   [Erigeron foliosus var. blochmaniae]
                                             Erigeron bloomeri
                                                   [Erigeron bloomeri var. pubens]
                                                   [Erigeron filifolius var. bloomeri]
                                               Erigeron bloomeri var. bloomeri
                                                     [Erigeron bloomeri var. pubens]
                                                     [Erigeron bloomeri var. typicus]
                                               Erigeron bloomeri var. nudatus
                                                     [Erigeron nudatus]
                                             Erigeron bonariensis
                                                   [Conyza bonariensis var. bonariensis]
                                                   [Conyza bonariensis]
                                                   [Erigeron crispus]
                                                   [Leptilon bonariense]
                                                   [Marsea bonariensis]
                                             Erigeron borealis
                                             Erigeron breviscapus
                                             Erigeron breweri
                                               Erigeron breweri porphyreticus
                                               Erigeron breweri var. bisanctus
                                               Erigeron breweri var. breweri
                                               Erigeron breweri var. covillei
                                                     [Erigeron covillei]
                                                     [Erigeron foliosus var. covillei]
                                               Erigeron breweri var. ensenadensis
                                               Erigeron breweri var. jacinteus
                                                     [Erigeron jacinteus]
                                               Erigeron breweri var. porphyreticus
                                             Erigeron caeruleus
                                             Erigeron caespitosus
                                                   [Diplopappus grandiflorus]
                                                   [Erigeron caespitosus var. laccoliticus]
                                             Erigeron calcicola
                                             Erigeron calvus
                                             Erigeron canaani
                                                   [Erigeron higginsii]
                                             Erigeron canadensis
                                                   [Aster canadensis]
                                                   [Caenotus canadensis]
                                                   [Conyza canadensis var. canadensis]
                                                   [Conyza canadensis var. glabrata]
                                                   [Conyza canadensis var. pusilla]
                                                   [Conyza canadensis]
                                                   [Conyza parva]
                                                   [Conyzella canadensis]
                                                   [Erigeron pusillus]
                                                   [Leptilon canadense]
                                                   [Leptilon linifolium]
                                                   [Marsea canadensis]
                                             Erigeron canus
                                                   [Erigeron phoenicodontus]
                                             Erigeron cascadensis
                                                   [Erigeron pachyrhizus]
                                             Erigeron cavernensis
                                             Erigeron cervinus
                                                   [Erigeron delicatus]
                                             Erigeron chiangii
                                               Erigeron chiangii var. lamprocaulis
                                             Erigeron chrysopsidis
                                                   [Erigeron curvifolius]
                                               Erigeron chrysopsidis subsp. chrysopsidis
                                               Erigeron chrysopsidis var. austiniae
                                                     [Erigeron austinae]
                                                     [Erigeron austiniae]
                                                     [Erigeron chrysopsidis subsp. austinae]
                                                     [Erigeron chrysopsidis subsp. austiniae]
                                                     [Erigeron chrysopsidis var. austinae]
                                               Erigeron chrysopsidis var. brevifolius
                                               Erigeron chrysopsidis var. chrysopsidis
                                             Erigeron cinereus
                                             Erigeron clokeyi
                                               Erigeron clokeyi var. clokeyi
                                               Erigeron clokeyi var. pinzliae
                                                     [Erigeron clokeyi var. pinzlae]
                                             Erigeron compactus
                                                   [Erigeron compactus var. compactus]
                                                   [Erigeron pulvinatus]
                                             Erigeron compositus
                                                   [Erigeron compositum]
                                                   [Erigeron compositus subsp. discoideus]
                                                   [Erigeron compositus var. breviradiatus]
                                                   [Erigeron compositus var. discoideus]
                                                   [Erigeron compositus var. glabratus]
                                                   [Erigeron compositus var. incertus]
                                                   [Erigeron compositus var. multifidus]
                                                   [Erigeron compositus var. petraeus]
                                                   [Erigeron gormanii]
                                               Erigeron compositus var. compositus
                                                     [Erigeron compositum var. compositum]
                                             Erigeron concinnus
                                                   [Erigeron concinnus var. eremicus]
                                                   [Erigeron pumilus subsp. concinnoides]
                                                   [Erigeron pumilus var. concinnus]
                                               Erigeron concinnus var. concinnus
                                               Erigeron concinnus var. condensatus
                                                     [Erigeron pumilus var. condensatus]
                                               Erigeron concinnus var. subglaber
                                                     [Erigeron zothecinus]
                                             Erigeron conditii
                                             Erigeron consimilis
                                                   [Erigeron compactus var. consimilis]
                                             Erigeron coronarius
                                                   [Erigeron howardii]
                                             Erigeron coroniglandifer
                                             Erigeron corymbosus
                                             Erigeron coulteri
                                             Erigeron crenatus
                                             Erigeron cronquistii
                                             Erigeron cuneifolius
                                             Erigeron decumbens
                                               Erigeron decumbens var. decumbens
                                             Erigeron delphinifolius
                                             Erigeron disparipilus
                                             Erigeron dissectus
                                             Erigeron divergens
                                                   [Erigeron divergens var. divergens]
                                             Erigeron domingensis
                                             Erigeron dryophyllus
                                             Erigeron eatonii
                                               Erigeron eatonii var. eatonii
                                               Erigeron eatonii var. lavandulus
                                               Erigeron eatonii var. nevadincola
                                                     [Erigeron nevadincola]
                                               Erigeron eatonii var. plantagineus
                                                     [Erigeron eatonii subsp. plantagineus]
                                                     [Erigeron plantagineus]
                                               Erigeron eatonii var. sonnei
                                                     [Erigeron sonnei]
                                               Erigeron eatonii var. villosus
                                                     [Erigeron eatonii subsp. villosus]
                                             Erigeron elatior
                                             Erigeron elatus
                                                   [Erigeron acris var. elatus]
                                             Erigeron elegantulus
                                                   [Erigeron linearis var. elegantulus]
                                             Erigeron elmeri
                                                   [Aster elmeri]
                                                   [Erigeron breweri var. elmeri]
                                             Erigeron engelmannii
                                             Erigeron eradiatus
                                             Erigeron eriocephalus
                                                   [Erigeron uniflorus var. eriocephalus]
                                             Erigeron eruptens
                                             Erigeron exilis
                                             Erigeron eximius
                                                   [Erigeron superbus]
                                             Erigeron filifolius
                                                   [Diplopappus filifolius]
                                                   [Erigeron filifolius var. filifolius]
                                                   [Erigeron filifolius var. robustior]
                                             Erigeron flabellifolius
                                             Erigeron flagellaris
                                                   [Erigeron flagellaris f. breviligulatus]
                                                   [Erigeron lavandulaceus]
                                                   [Erigeron nudiflorus]
                                             Erigeron foliosus
                                                   [Erigeron foliosus var. stenophyllus]
                                                   [Erigeron fragilis]
                                                   [Erigeron striatus]
                                               Erigeron foliosus var. confinis
                                                     [Erigeron confinis]
                                               Erigeron foliosus var. foliosus
                                                     [Erigeron foliosus var. setchellii]
                                                     [Erigeron foliosus var. stenophyllus]
                                                     [Erigeron foliosus var. typicus]
                                                     [Erigeron setchellii]
                                               Erigeron foliosus var. franciscensis
                                               Erigeron foliosus var. hartwegii
                                                     [Erigeron blasdalei]
                                                     [Erigeron hartwegi]
                                               Erigeron foliosus var. mendocinus
                                               Erigeron foliosus var. setchellii
                                                     [Erigeron setchellii]
                                             Erigeron formosissimus
                                                   [Erigeron pecosensis]
                                               Erigeron formosissimus var. formosissimus
                                               Erigeron formosissimus var. viscidus
                                                     [Erigeron viscidus]
                                             Erigeron forreri
                                             Erigeron fraternus
                                             Erigeron fuertesii
                                             Erigeron galeottii
                                             Erigeron garrettii
                                                   [Erigeron controversus]
                                             Erigeron geiseri
                                             Erigeron gilliesii
                                             Erigeron glabellus
                                               Erigeron glabellus subsp. glabellus
                                               Erigeron glabellus var. pubescens
                                                     [Erigeron glabellus subsp. pubescens]
                                             Erigeron glacialis
                                                   [Aster glacialis]
                                                   [Erigeron callianthemus]
                                                   [Erigeron peregrinus subsp. callianthemus]
                                                   [Erigeron peregrinus var. angustifolius]
                                                   [Erigeron peregrinus var. callianthemus]
                                                   [Erigeron peregrinus var. eucallianthemus]
                                                   [Erigeron peregrinus var. scaposus]
                                                   [Erigeron salsuginosus var. angustifolius]
                                                   [Erigeron salsuginosus var. glacialis]
                                               Erigeron glacialis var. glacialis
                                                     [Erigeron peregrinus subsp. callianthemus]
                                                     [Erigeron peregrinus var. angustifolius]
                                                     [Erigeron peregrinus var. callianthemus]
                                               Erigeron glacialis var. hirsutus
                                                     [Erigeron peregrinus var. hirsutus]
                                             Erigeron glaucus
                                                   [Stenactis glauca]
                                             Erigeron goodrichii
                                             Erigeron gracilis
                                             Erigeron grandiflorus
                                                   [Erigeron simplex]
                                             Erigeron greenei
                                                   [Erigeron angustatus]
                                             Erigeron griseus
                                             Erigeron guatemalensis
                                             Erigeron heteromorphus
                                             Erigeron howellii
                                             Erigeron humilis
                                                   [Erigeron unalaschkensis]
                                             Erigeron hyperboreus
                                             Erigeron hyssopifolius
                                                   [Erigeron hyssopifolius f. appressus]
                                             Erigeron incomptus
                                                   [Erigeron californicus]
                                             Erigeron inoptatus
                                                   [Erigeron alcicornutus]
                                             Erigeron inornatus
                                                   [Erigeron foliosus var. inornatus]
                                               Erigeron inornatus var. calidipetris
                                               Erigeron inornatus var. inornatus
                                               Erigeron inornatus var. keilii
                                             Erigeron irazuensis
                                             Erigeron janivultus
                                             Erigeron jonesii
                                                   [Erigeron wahwahensis]
                                             Erigeron karvinskianus
                                                   [Erigeron leucanthemifolius]
                                             Erigeron klamathensis
                                                   [Erigeron breweri var. klamathensis]
                                             Erigeron kuschei
                                             Erigeron laevigatus
                                                   [Conyza apurensis]
                                                   [Erigeron spathulatus]
                                             Erigeron lanatus
                                             Erigeron lancifolius
                                                   [Darwiniothamnus tenuifolius var. glandulosus]
                                               Erigeron lancifolius var. glabriusculus
                                             Erigeron lassenianus
                                                   [Erigeron flexuosus]
                                               Erigeron lassenianus var. deficiens
                                               Erigeron lassenianus var. lassenianus
                                             Erigeron latus
                                             Erigeron leibergii
                                             Erigeron leiomerus
                                             Erigeron lemmonii
                                             Erigeron lepidopodus
                                             Erigeron linearis
                                                   [Diplopappus linearis]
                                                   [Erigeron peucephyllus]
                                             Erigeron lobatus
                                             Erigeron lonchophyllus
                                                   [Erigeron armerifolius]
                                                   [Trimorpha lonchophylla]
                                             Erigeron longipes
                                                   [Erigeron scaposus var. latifolius]
                                                   [Erigeron scaposus]
                                             Erigeron magnimontanus
                                                   [Conyza magnimontana]
                                             Erigeron maguirei
                                             Erigeron maniopotamicus
                                             Erigeron mariposanus
                                             Erigeron melanocephalus
                                             Erigeron mendocinensis
                                                   [Erigeron mendocinus]
                                             Erigeron metrius
                                             Erigeron microcephalus
                                                   [Conyza microcephala]
                                             Erigeron miser
                                             Erigeron modestus
                                             Erigeron multiceps
                                             Erigeron multifolius
                                             Erigeron myosotis
                                             Erigeron nanus
                                             Erigeron narcissus
                                                   [Achaetogeron filiformis]
                                             Erigeron nauseosus
                                                   [Erigeron caespitosus var. nauseosus]
                                             Erigeron neglectus
                                             Erigeron nematophylloides
                                             Erigeron nematophyllus
                                             Erigeron neomexicanus
                                                   [Erigeron delphinifolius subsp. neomexicanus]
                                             Erigeron nivalis
                                                   [Erigeron acris subsp. debilis]
                                                   [Erigeron acris var. debilis]
                                                   [Erigeron debilis]
                                                   [Trimorpha acris var. debilis]
                                             Erigeron ochroleucus
                                                   [Erigeron ochroleucus var. scribneri]
                                               Erigeron ochroleucus var. ochroleucus
                                             Erigeron oreganus
                                             Erigeron oreophilus
                                             Erigeron ovinus
                                             Erigeron oxyphyllus
                                             Erigeron pacayensis
                                             Erigeron palmeri
                                             Erigeron parishii
                                             Erigeron peregrinus
                                               Erigeron peregrinus subsp. peregrinus
                                                     [Erigeron membranaceus]
                                               Erigeron peregrinus var. peregrinus
                                             Erigeron petiolaris
                                             Erigeron petrophilus
                                               Erigeron petrophilus var. petrophilus
                                               Erigeron petrophilus var. sierrensis
                                               Erigeron petrophilus var. viscidulus
                                                     [Erigeron inornatus var. viscidulus]
                                             Erigeron philadelphicus
                                               Erigeron philadelphicus var. philadelphicus
                                                     [Erigeron philadelphicus subsp. philadelphicus]
                                             Erigeron pinnatisectus
                                             Erigeron piperianus
                                             Erigeron poliospermus
                                               Erigeron poliospermus var. cereus
                                               Erigeron poliospermus var. disciformis
                                                     [Erigeron poliospermus f. disciformis]
                                               Erigeron poliospermus var. poliospermus
                                             Erigeron polycephalus
                                             Erigeron polycladus
                                             Erigeron porsildii
                                                   [Erigeron grandiflorus subsp. arcticus]
                                             Erigeron potosinus
                                             Erigeron primulifolius
                                                   [Conyza chilensis var. guaranitica]
                                                   [Conyza chilensis]
                                                   [Conyza primulifolia]
                                             Erigeron pringlei
                                             Erigeron procumbens
                                                   [Erigeron myrionactis]
                                             Erigeron pubescens
                                             Erigeron pulchellus
                                                   [Erigeron bellidifolius]
                                             Erigeron pulcherrimus
                                                   [Erigeron pulcherrimus var. wyomingia]
                                               Erigeron pulcherrimus var. pulcherrimus
                                             Erigeron pumilus
                                               Erigeron pumilus var. intermedius
                                                     [Erigeron pumilus subsp. intermedius]
                                                     [Erigeron pumilus var. gracilior]
                                               Erigeron pumilus var. pumilus
                                             Erigeron purpuratus
                                             Erigeron pygmaeus
                                                   [Erigeron nevadensis var. pygmaeus]
                                             Erigeron quercifolius
                                             Erigeron radicatus
                                                   [Erigeron huberi]
                                                   [Erigeron macounii]
                                             Erigeron ramosissimus
                                                   [Conyza ramosissima]
                                                   [Erigeron divaricatus]
                                             Erigeron ramosus
                                             Erigeron reductus
                                                   [Erigeron inornatus var. reductus]
                                               Erigeron reductus var. angustatus
                                                     [Erigeron inornatus var. angustatus]
                                               Erigeron reductus var. reductus
                                                     [Erigeron inornatus var. reductus]
                                             Erigeron religiosus
                                             Erigeron repens
                                             Erigeron rhizomactis
                                             Erigeron robustior
                                                   [Erigeron decumbens subsp. robustior]
                                                   [Erigeron decumbens var. robustior]
                                             Erigeron rybius
                                             Erigeron rydbergii
                                             Erigeron salmonensis
                                             Erigeron salsuginosus
                                             Erigeron sanctarum
                                             Erigeron sceptrifer
                                             Erigeron scoparioides
                                             Erigeron scopulinus
                                             Erigeron seemannii
                                             Erigeron serpentinus
                                             Erigeron sionis
                                               Erigeron sionis var. trilobatus
                                                     [Erigeron flagellaris var. trilobatus]
                                                     [Erigeron proselyticus]
                                             Erigeron sivinskii
                                             Erigeron socorrensis
                                             Erigeron sparsifolius
                                                   [Erigeron utahensis var. sparsifolius]
                                             Erigeron speciosus
                                                   [Erigeron leiophyllus]
                                                   [Erigeron leucotrichus]
                                                   [Erigeron macranthus]
                                                   [Erigeron speciosus var. macranthus]
                                                   [Erigeron speciosus var. mollis]
                                                   [Erigeron subtrinervis subsp. conspicuus]
                                               Erigeron speciosus var. speciosus
                                             Erigeron stanfordii
                                             Erigeron stenophyllus
                                             Erigeron strigosus
                                               Erigeron strigosus var. strigosus
                                                     [Erigeron strigosus subsp. strigosus]
                                                     [Erigeron strigosus var. septentrionalis]
                                             Erigeron strigulosus
                                                   [Erigeron sylvestris]
                                             Erigeron subalpinus
                                             Erigeron subtrinervis
                                             Erigeron sumatrensis
                                                   [Conyza floribunda]
                                                   [Conyza sumatrensis var. floribunda]
                                                   [Conyza sumatrensis var. leiotheca]
                                                   [Conyza sumatrensis var. sumatrensis]
                                                   [Conyza sumatrensis]
                                                   [Dimorphanthes floribunda]
                                                   [Erigeron bonariensis var. floribundus]
                                                   [Erigeron floribundus]
                                             Erigeron supplex
                                             Erigeron tenellus
                                             Erigeron tener
                                                   [Erigeron caespitosus var. tener]
                                             Erigeron tenuicaulis
                                             Erigeron tenuifolius
                                                   [Darwiniothamnus tenuifolius var. tenuifolius]
                                                   [Darwiniothamnus tenuifolius]
                                             Erigeron tenuis
                                             Erigeron tephropodus
                                             Erigeron thrincioides
                                             Erigeron thunbergii
                                                   [Erigeron dubius]
                                             Erigeron tracyi
                                                   [Erigeron accedens]
                                                   [Erigeron cinereus var. aridus]
                                                   [Erigeron colomexicanus]
                                                   [Erigeron divergens var. cinereus]
                                                   [Erigeron tephrodes]
                                             Erigeron trifidus
                                                   [Erigeron compositus var. trifidus]
                                             Erigeron tuerckheimii
                                             Erigeron tweedyi
                                             Erigeron uintahensis
                                             Erigeron uncialis
                                               Erigeron uncialis var. conjugans
                                                     [Erigeron uncialis subsp. conjugans]
                                               Erigeron uncialis var. uncialis
                                                     [Erigeron uncialis subsp. uncialis]
                                             Erigeron unguiphyllus
                                             Erigeron uniflorus
                                             Erigeron untermannii
                                             Erigeron ursinus
                                             Erigeron utahensis
                                                   [Erigeron utahensis var. tetrapleuris]
                                                   [Erigeron utahensis var. utahensis]
                                               Erigeron utahensis var. utahensis
                                             Erigeron vagus
                                               Erigeron vagus var. madsenii
                                             Erigeron variifolius
                                                   [Conyza coronopifolia]
                                             Erigeron vegaensis
                                             Erigeron velutipes
                                                   [Erigeron alamosanus]
                                             Erigeron vernus
                                             Erigeron versicolor
                                                   [Achaetogeron versicolor]
                                                   [Erigeron gilensis]
                                                   [Erigeron mimegletes]
                                             Erigeron vetensis
                                                   [Erigeron glandulosus]
                                             Erigeron vreelandii
                                                   [Erigeron patens]
                                                   [Erigeron platyphyllus]
                                             Erigeron watsonii
                                             Erigeron wellsii
                                             Erigeron wislizeni
                                             Erigeron yukonensis
                                     Eriocarpum
                                     Eriocephalus
                                             Eriocephalus africanus
                                               Eriocephalus africanus var. paniculatus
                                             Eriocephalus capitellatus
                                             Eriocephalus decussatus
                                                   [Eriocephalus aspalathoides]
                                             Eriocephalus ericoides
                                               Eriocephalus ericoides subsp. ericoides
                                             Eriocephalus eximius
                                             Eriocephalus kingesii
                                             Eriocephalus microphyllus
                                               Eriocephalus microphyllus var. pubescens
                                             Eriocephalus pauperrimus
                                             Eriocephalus pinnatus
                                             Eriocephalus racemosus
                                             Eriocephalus scariosus
                                                   [Eriocephalus scariosissimus]
                                             Eriocephalus spinescens
                                     Eriopappus
                                     Eriophyllum
                                             Eriophyllum ambiguum
                                                   [Bahia ambigua]
                                                   [Bahia parviflora]
                                                   [Lasthenia ambigua]
                                               Eriophyllum ambiguum var. ambiguum
                                               Eriophyllum ambiguum var. paleaceum
                                                     [Eriophyllum paleaceum]
                                             Eriophyllum confertiflorum
                                                   [Bahia confertiflora]
                                                   [Eriophyllum confertiflorum var. laxiflorum]
                                                   [Eriophyllum confertiflorum var. tridactylum]
                                                   [Eriophyllum confertiflorum var. trifidum]
                                                   [Eriophyllum tenuifolium]
                                               Eriophyllum confertiflorum confertiflorum
                                               Eriophyllum confertiflorum var. confertiflorum
                                                     [Eriophyllum confertiflorum var. latum]
                                                     [Eriophyllum crucigerum]
                                               Eriophyllum confertiflorum var. tanacetiflorum
                                                     [Eriophyllum tanacetiflorum]
                                             Eriophyllum congdonii
                                                   [Eriophyllum nubigenum var. congdonii]
                                             Eriophyllum jepsonii
                                             Eriophyllum lanatum
                                                   [Actinea lanata]
                                                   [Actinella lanata]
                                                   [Bahia gracilis]
                                                   [Bahia lanata]
                                                   [Bahia latifolia]
                                                   [Eriophyllum bolanderi]
                                                   [Eriophyllum chrysanthum]
                                                   [Eriophyllum cineraria]
                                                   [Eriophyllum greenei]
                                                   [Eriophyllum harfordii]
                                                   [Eriophyllum lutescens]
                                                   [Eriophyllum multiflorum]
                                                   [Eriophyllum nevadense]
                                                   [Eriophyllum pedunculatum]
                                                   [Eriophyllum rixfordii]
                                                   [Eriophyllum superbum]
                                                   [Eriophyllum trichocarpum]
                                                   [Helenium lanatum]
                                                   [Trichophyllum lanatum]
                                               Eriophyllum lanatum var. achilleoides
                                                     [Eriophyllum caespitosum var. achillaeoides]
                                                     [Eriophyllum caespitosum var. achillioides]
                                                     [Eriophyllum idoneum]
                                                     [Eriophyllum lanatum var. achillaeoides]
                                                     [Eriophyllum lanatum var. achillioides]
                                                     [Eriophyllum lanatum var. aphanactis]
                                               Eriophyllum lanatum var. arachnoideum
                                                     [Bahia arachnoidea]
                                               Eriophyllum lanatum var. croceum
                                                     [Eriophyllum croceum]
                                               Eriophyllum lanatum var. grandiflorum
                                                     [Eriophyllum caespitosum var. grandiflorum]
                                                     [Eriophyllum grandiflorum]
                                               Eriophyllum lanatum var. hallii
                                               Eriophyllum lanatum var. integrifolium
                                                     [Eriophyllum caespitosum var. integrifolium]
                                                     [Eriophyllum integrifolium]
                                                     [Eriophyllum lanatum var. cuneatum]
                                                     [Eriophyllum lanatum var. monoense]
                                                     [Eriophyllum monoense]
                                               Eriophyllum lanatum var. lanatum
                                                     [Eriophyllum caespitosum var. caespitosum]
                                                     [Eriophyllum caespitosum]
                                               Eriophyllum lanatum var. lanceolatum
                                                     [Eriophyllum lanceolatum]
                                               Eriophyllum lanatum var. leucophyllum
                                                     [Bahia leucophylla]
                                                     [Eriophyllum caespitosum var. leucophyllum]
                                                     [Eriophyllum leucophyllum]
                                                     [Eriophyllum watsoni]
                                                     [Eriophyllum watsonii]
                                               Eriophyllum lanatum var. obovatum
                                                     [Eriophyllum obovatum]
                                             Eriophyllum lanosum
                                                   [Actinolepis lanosa]
                                                   [Antheropeas lanosum]
                                                   [Antheropeas tenuifolium]
                                                   [Burrielia lanosa]
                                             Eriophyllum latilobum
                                             Eriophyllum mohavense
                                                   [Eremonanus mohavensis]
                                             Eriophyllum multicaule
                                                   [Actinolepis multicaulis var. papposa]
                                                   [Actinolepis multicaulis]
                                             Eriophyllum nubigenum
                                                   [Actinolepis nubigena]
                                             Eriophyllum pringlei
                                                   [Actinolepis pringlei]
                                             Eriophyllum staechadifolium
                                                   [Bahia artemisiifolia]
                                                   [Bahia staechadifolia]
                                                   [Eriophyllum staechadifolium var. artemisiifolium]
                                                   [Eriophyllum staechadifolium var. depressum]
                                                   [Eriophyllum staechadifolium var. staechadifolium]
                                                   [Eriophyllum stoechadifolium var. stoechadifolium]
                                                   [Eriophyllum stoechadifolium]
                                               Eriophyllum staechadifolium var. artmisiaefolium
                                             Eriophyllum wallacei
                                                   [Actinolepis wallacei]
                                                   [Antheropeas australe]
                                                   [Antheropeas wallacei]
                                                   [Bahia rubella]
                                                   [Bahia wallacei]
                                                   [Eriophyllum aureum]
                                                   [Eriophyllum wallacei subsp. wallacei]
                                                   [Eriophyllum wallacei var. calvescens]
                                                   [Eriophyllum wallacei var. rubellum]
                                                   [Eriophyllum wallacei var. wallacei]
                                               Eriophyllum wallacei var. australe
                                                     [Eriophyllum wallacei subsp. australe]
                                     Eryngiophyllum
                                     Eschenbachia
                                             Eschenbachia gouanii
                                                   [Conyza gouanii]
                                                   [Conyza hochstetteri]
                                             Eschenbachia japonica
                                                   [Conyza japonica]
                                             Eschenbachia leucantha
                                                   [Blumeopsis falcata]
                                     Espejoa
                                             Espejoa mexicana
                                     Espeletia
                                             Espeletia hartwegiana
                                             Espeletia pycnophylla
                                               Espeletia pycnophylla subsp. angelensis
                                             Espeletia schultesiana
                                             Espeletia schultzii
                                     Eucephalus
                                             Eucephalus breweri
                                                   [Aster breweri]
                                                   [Chrysopsis breweri var. breweri]
                                                   [Chrysopsis breweri var. multibracteata]
                                                   [Chrysopsis breweri]
                                                   [Chrysopsis gracilis]
                                                   [Doellingeria breweri]
                                                   [Heterotheca breweri]
                                             Eucephalus elegans
                                                   [Aster perelegans]
                                             Eucephalus gormanii
                                     Euchiton
                                             Euchiton gymnocephalus
                                                   [Euchiton collinus]
                                                   [Gnaphalium collinum]
                                                   [Gnaphalium gymnocephalum]
                                             Euchiton involucratus
                                                   [Gnaphalium involucratum]
                                             Euchiton japonicus
                                                   [Gnaphalium japonicum]
                                             Euchiton sphaericus
                                                   [Gnaphalium sphaericum]
                                     Eupatoriastrum
                                             Eupatoriastrum angulifolium
                                             Eupatoriastrum corvi
                                                   [Eupatorium corvi]
                                             Eupatoriastrum nelsonii
                                             Eupatoriastrum triangulare
                                     Eupatorium
                                             Eupatorium ageratifolium
                                             Eupatorium album
                                             Eupatorium altissimum
                                             Eupatorium bupleurifolium
                                             Eupatorium camiguinense
                                                   [Eupatorium catense]
                                             Eupatorium cannabinum
                                             Eupatorium capillifolium
                                             Eupatorium chinense
                                             Eupatorium compositifolium
                                             Eupatorium glabratum
                                             Eupatorium glandulosum
                                             Eupatorium godfreyanum
                                             Eupatorium hyssopifolium
                                               Eupatorium hyssopifolium var. laciniatum
                                                     [Eupatorium torreyanum]
                                             Eupatorium japonicum
                                             Eupatorium laciniatum
                                             Eupatorium leptophyllum
                                             Eupatorium leucolepis
                                             Eupatorium lindleyanum
                                             Eupatorium linearifolium
                                                   [Eupatorium cuneifolium]
                                             Eupatorium megaphyllum
                                             Eupatorium micranthum
                                             Eupatorium mohrii
                                                   [Eupatorium recurvans]
                                             Eupatorium perfoliatum
                                             Eupatorium pilosum
                                             Eupatorium purpureum
                                             Eupatorium rotundifolium
                                             Eupatorium semiserratum
                                             Eupatorium serotinum
                                             Eupatorium sessilifolium
                                               Eupatorium sessilifolium var. vaseyi
                                                     [Eupatorium album var. monardifolium]
                                             Eupatorium smithii
                                             Eupatorium toppingianum
                                             Eupatorium urticifolium
                                                   [Eupatorium urticaefolium]
                                     Euphrosyne
                                             Euphrosyne acerosa
                                                   [Iva acerosa]
                                                   [Oxytenia acerosa]
                                             Euphrosyne dealbata
                                                   [Iva dealbata]
                                             Euphrosyne nevadensis
                                                   [Chorisiva nevadensis]
                                                   [Iva nevadensis]
                                     Eurybia
                                             Eurybia compacta
                                                   [Aster gracilis]
                                             Eurybia conspicua
                                                   [Aster conspicuus]
                                             Eurybia divaricata
                                             Eurybia eryngiifolia
                                             Eurybia glauca
                                                   [Aster glaucodes var. glaucodes]
                                                   [Aster glaucodes]
                                                   [Eucephalus formosus]
                                                   [Eucephalus glaucus]
                                                   [Herrickia glauca var. glauca]
                                                   [Herrickia glauca]
                                               Eurybia glauca var. pulchra
                                                     [Herrickia glauca var. pulchra]
                                             Eurybia hemispherica
                                                   [Aster hemisphaericus]
                                                   [Heleastrum hemisphericum]
                                             Eurybia integrifolia
                                                   [Aster integrifolius]
                                             Eurybia jonesiae
                                             Eurybia kingii
                                                   [Herrickia kingii var. kingii]
                                                   [Herrickia kingii]
                                                   [Machaeranthera kingii]
                                               Eurybia kingii var. barnebyana
                                                     [Herrickia kingii var. barnebyana]
                                                     [Machaeranthera kingii var. barnebyana]
                                             Eurybia macrophylla
                                                   [Aster ianthinus]
                                                   [Aster macrophyllus]
                                             Eurybia merita
                                                   [Aster meritus]
                                                   [Aster richardsonii var. meritus]
                                                   [Aster sibiricus var. meritus]
                                             Eurybia mirabilis
                                             Eurybia paludosa
                                                   [Aster paludosus]
                                             Eurybia radulina
                                                   [Aster radulinus]
                                                   [Weberaster radulinus]
                                             Eurybia schreberi
                                                   [Aster schreberi]
                                             Eurybia sibirica
                                               Eurybia sibirica subsp. sibirica
                                                     [Aster sibiricus]
                                             Eurybia spectabilis
                                             Eurybia surculosa
                                                   [Aster surculosus]
                                             Eurybia wasatchensis
                                                   [Aster wasatchensis]
                                                   [Herrickia wasatchensis]
                                     Euryops
                                             Euryops abrotanifolius
                                                   [Euryops athanasiae]
                                             Euryops acraeus
                                             Euryops algoensis
                                             Euryops arabicus
                                                   [Euryops socotranus]
                                             Euryops brachypodus
                                             Euryops brevipapposus
                                             Euryops chrysanthemoides
                                                   [Gamolepis chrysanthemoides]
                                             Euryops dacrydioides
                                             Euryops decipiens
                                             Euryops decumbens
                                             Euryops discoideus
                                             Euryops dregeanus
                                             Euryops empetrifolius
                                             Euryops erectus
                                             Euryops ericoides
                                             Euryops euryopoides
                                             Euryops evansii
                                             Euryops lasiocladus
                                             Euryops lateriflorus
                                             Euryops laxus
                                             Euryops linearis
                                             Euryops linifolius
                                             Euryops multifidus
                                             Euryops munitus
                                             Euryops oligoglossus
                                             Euryops othonnoides
                                             Euryops pectinatus
                                               Euryops pectinatus subsp. pectinatus
                                             Euryops pedunculatus
                                             Euryops polytrichoides
                                             Euryops spathaceus
                                             Euryops speciosissimus
                                             Euryops subcarnosus
                                             Euryops tenuissimus
                                               Euryops tenuissimus subsp. tenuissimus
                                             Euryops transvaalensis
                                               Euryops transvaalensis subsp. transvaalensis
                                             Euryops tysonii
                                             Euryops virgineus
                                     Eutetras
                                             Eutetras palmeri
                                             Eutetras pringlei
                                     Euthamia
                                             Euthamia caroliniana
                                                   [Euthamia minor]
                                                   [Euthamia tenuifolia]
                                                   [Solidago graminifolia var. media]
                                                   [Solidago media]
                                                   [Solidago microcephala]
                                                   [Solidago tenuifolia]
                                             Euthamia graminifolia
                                                   [Euthamia graminifolia subsp. graminifolia]
                                                   [Euthamia graminifolia subsp. nuttallii]
                                                   [Euthamia graminifolia var. graminifolia]
                                                   [Euthamia graminifolia var. major]
                                                   [Euthamia graminifolia var. nuttallii]
                                                   [Solidago graminifolia var. graminifolia]
                                                   [Solidago graminifolia var. nuttallii]
                                                   [Solidago graminifolia]
                                                   [Solidago hirtella]
                                                   [Solidago nuttallii]
                                             Euthamia gymnospermoides
                                                   [Euthamia camporum]
                                             Euthamia leptocephala
                                                   [Solidago leptocephala]
                                             Euthamia occidentalis
                                                   [Euthamia californica]
                                                   [Solidago occidentalis]
                                             Euthamia remota
                                                   [Solidago graminifolia var. remota]
                                     Eutrochium
                                             Eutrochium dubium
                                                   [Eupatorium dubium]
                                             Eutrochium fistulosum
                                                   [Eupatorium fistulosum]
                                             Eutrochium maculatum
                                                   [Eupatorium maculatum]
                                               Eutrochium maculatum var. foliosum
                                             Eutrochium purpureum
                                                   [Eupatorium purpureum]
                                     Evax
                                             Evax prolifera
                                             Evax verna
                                               Evax verna var. verna
                                     Facelis
                                             Facelis retusa
                                     Farfugium
                                             Farfugium japonicum
                                                   [Ligularia tussilaginea]
                                               Farfugium japonicum var. giganteum
                                     Faxonia
                                             Faxonia pusilla
                                     Felicia
                                             Felicia abyssinica
                                               Felicia abyssinica subsp. abyssinica
                                             Felicia aculeata
                                             Felicia aethiopica
                                             Felicia amelloides
                                             Felicia bergeriana
                                             Felicia clavipilosa
                                             Felicia cymbalariae
                                               Felicia cymbalariae subsp. ionops
                                             Felicia denticulata
                                             Felicia dubia
                                             Felicia echinata
                                             Felicia erigeroides
                                             Felicia fascicularis
                                             Felicia filifolia
                                               Felicia filifolia subsp. filifolia
                                             Felicia fruticosa
                                               Felicia fruticosa subsp. brevipedunculata
                                               Felicia fruticosa subsp. fruticosa
                                                     [Aster fruticosus]
                                             Felicia hirta
                                             Felicia hyssopifolia
                                               Felicia hyssopifolia subsp. hyssopifolia
                                                     [Felicia angustifolia]
                                             Felicia merxmuelleri
                                             Felicia minima
                                             Felicia mossamedensis
                                             Felicia muricata
                                               Felicia muricata subsp. muricata
                                               Felicia muricata subsp. strictifolia
                                             Felicia namaquana
                                             Felicia oleosa
                                             Felicia ovata
                                             Felicia petiolata
                                             Felicia scabrida
                                             Felicia smaragdina
                                             Felicia tenella
                                             Felicia welwitschii
                                             Felicia whitehillensis
                                             Felicia zeyheri
                                               Felicia zeyheri subsp. linifolia
                                     Ferreyranthus
                                             Ferreyranthus rugosus
                                                   [Liabum rugosum]
                                     Ferreyrella
                                             Ferreyrella cuatrecasasii
                                     Filaginella
                                     Filago
                                           [Evacidium]
                                             Filago asterisciflora
                                                   [Evax asterisciflora]
                                             Filago carpetana
                                             Filago congesta
                                             Filago desertorum
                                             Filago discolor
                                                   [Evacidium discolor]
                                             Filago duriaei
                                             Filago eriosphaera
                                                   [Evax eriosphaera]
                                             Filago fuscescens
                                             Filago griffithii
                                                   [Micropus longifolius]
                                             Filago hurdwarica
                                             Filago lutescens
                                             Filago montana
                                             Filago pygmaea
                                               Filago pygmaea subsp. pygmaea
                                                     [Evax pygmaea]
                                             Filago pyramidata
                                               Filago pyramidata var. pyramidata
                                                     [Filago germanica]
                                                     [Gnaphalium germanicum]
                                             Filago vulgaris
                                     Flaveria
                                             Flaveria angustifolia
                                             Flaveria anomala
                                             Flaveria bidentis
                                             Flaveria brownii
                                             Flaveria campestris
                                             Flaveria chlorifolia
                                             Flaveria cronquistii
                                             Flaveria linearis
                                             Flaveria mcdougallii
                                             Flaveria oppositifolia
                                                   [Flaveria longifolia]
                                             Flaveria pringlei
                                             Flaveria pubescens
                                             Flaveria ramosissima
                                             Flaveria robusta
                                             Flaveria sonorensis
                                             Flaveria trinervia
                                                   [Flaveria australasica]
                                                   [Oedera trinervia]
                                             Flaveria vaginata
                                     Fleischmannia
                                             Fleischmannia arguta
                                                   [Eupatorium argutum]
                                             Fleischmannia blakei
                                             Fleischmannia bohlmanniana
                                             Fleischmannia capillipes
                                                   [Eupatorium capillipes]
                                             Fleischmannia crocodilia
                                             Fleischmannia deborabellae
                                             Fleischmannia guatemalensis
                                             Fleischmannia imitans
                                                   [Eupatorium imitans]
                                             Fleischmannia incarnata
                                                   [Eupatorium incarnatum]
                                             Fleischmannia microstemon
                                                   [Eupatorium guadalupense]
                                             Fleischmannia obscurifolia
                                                   [Eupatorium obscurifolium]
                                             Fleischmannia pratensis
                                                   [Fleischmannia panamensis]
                                             Fleischmannia purpusii
                                                   [Eupatorium zacuapanum]
                                             Fleischmannia pycnocephala
                                             Fleischmannia pycnocephaloides
                                                   [Eupatorium rojasianum]
                                             Fleischmannia seleriana
                                                   [Eupatorium selerianum]
                                                   [Fleischmannia antiquorum]
                                             Fleischmannia sinaloensis
                                             Fleischmannia sinclairii
                                             Fleischmannia sonorae
                                                   [Eupatorium sonorae]
                                             Fleischmannia trinervia
                                     Fleischmanniopsis
                                             Fleischmanniopsis leucocephala
                                                   [Eupatorium leucocephalum]
                                     Florestina
                                             Florestina latifolia
                                             Florestina lobata
                                             Florestina pedata
                                             Florestina platyphylla
                                             Florestina purpurea
                                                   [Hymenothrix purpurea]
                                             Florestina simplicifolia
                                             Florestina tripteris
                                     Flourensia
                                             Flourensia cernua
                                             Flourensia collodes
                                             Flourensia glutinosa
                                                   [Encelia glutinosa]
                                             Flourensia ilicifolia
                                             Flourensia laurifolia
                                             Flourensia macrophylla
                                             Flourensia microphylla
                                             Flourensia monticola
                                             Flourensia pringlei
                                                   [Helianthella pringlei]
                                             Flourensia pulcherrima
                                             Flourensia resinosa
                                                   [Encelia resinosa]
                                             Flourensia retinophylla
                                             Flourensia solitaria
                                             Flourensia thurifera
                                     Flyriella
                                             Flyriella parryi
                                                   [Brickellia shineri]
                                                   [Eupatorium chrysostylum]
                                                   [Eupatorium sphenopodum]
                                     Franseria
                                             Franseria bipinnatifida
                                             Franseria sanctae-gertrudis
                                             Franseria tomentosa
                                     Fulcaldea
                                             Fulcaldea laurifolia
                                     Gaertneria
                                     Gaillardia
                                             Gaillardia aestivalis
                                                   [Gaillardia aestivalis var. flavovirens]
                                                   [Gaillardia lanceolata]
                                                   [Polypteris integrifolia]
                                             Gaillardia amblyodon
                                             Gaillardia aristata
                                                   [Gaillardia bicolor var. aristata]
                                                   [Gaillardia hallii]
                                             Gaillardia arizonica
                                                   [Gaillardia arizonica var. pringlei]
                                                   [Gaillardia pedunculata]
                                               Gaillardia arizonica var. arizonica
                                             Gaillardia bicolor
                                             Gaillardia coahuilensis
                                             Gaillardia comosa
                                             Gaillardia megapotamica
                                             Gaillardia multiceps
                                             Gaillardia parryi
                                             Gaillardia pinnatifida
                                                   [Gaillardia crassa]
                                                   [Gaillardia flava]
                                                   [Gaillardia linearis]
                                                   [Gaillardia mearnsii]
                                                   [Gaillardia pinnatifida var. linearis]
                                             Gaillardia powellii
                                             Gaillardia pulchella
                                                   [Gaillardia pulchella var. australis]
                                                   [Gaillardia pulchella var. picta]
                                                   [Gaillardia pulchella var. pulchella]
                                               Gaillardia pulchella var. pulchella
                                             Gaillardia spathulata
                                             Gaillardia suavis
                                     Galactites
                                             Galactites duriaei
                                             Galactites tomentosa
                                     Galatella
                                             Galatella cana
                                             Galatella sedifolia
                                               Galatella sedifolia subsp. sedifolia
                                                     [Aster sedifolius]
                                     Galathenium
                                     Galeana
                                             Galeana pratensis
                                                   [Melampodium minutiflorum]
                                     Galinsoga
                                             Galinsoga caligensis
                                             Galinsoga longipes
                                             Galinsoga mollis
                                             Galinsoga parviflora
                                               Galinsoga parviflora var. parviflora
                                               Galinsoga parviflora var. semicalva
                                                     [Galinsoga semicalva]
                                             Galinsoga quadriradiata
                                                   [Galinsoga ciliata]
                                                   [Galinsoga parviflora subsp. quadriradiata]
                                                   [Galinsoga parviflora var. hispida]
                                                   [Galinsoga parviflora var. quadriradiata]
                                                   [Galinsoga urticifolia]
                                             Galinsoga subdiscoidea
                                             Galinsoga triradiata
                                     Gamochaeta
                                             Gamochaeta americana
                                             Gamochaeta antillana
                                             Gamochaeta antillanum
                                                   [Gnaphalium antillanum]
                                             Gamochaeta argyrinea
                                             Gamochaeta calviceps
                                                   [Gnaphalium calviceps]
                                             Gamochaeta capensis
                                             Gamochaeta chionesthes
                                             Gamochaeta coarctata
                                                   [Gnaphalium coarctatum]
                                             Gamochaeta falcata
                                                   [Gnaphalium falcatum]
                                                   [Gnaphalium purpureum var. falcatum]
                                             Gamochaeta impatiens
                                             Gamochaeta pensylvanica
                                                   [Gnaphalium pensylvanicum]
                                                   [Gnaphalium peregrinum]
                                             Gamochaeta purpurea
                                                   [Gamochaeta americana]
                                                   [Gamochaeta rosacea]
                                                   [Gnaphalium americanum]
                                                   [Gnaphalium purpureum]
                                             Gamochaeta rubrolinea
                                             Gamochaeta simplicicaulis
                                             Gamochaeta sphacelata
                                             Gamochaeta stachydifolia
                                                   [Gnaphalium purpureum var. stachydifolium]
                                                   [Gnaphalium stachydifolium]
                                             Gamochaeta stagnalis
                                                   [Gnaphalium stagnale]
                                             Gamochaeta ustulata
                                                   [Gnaphalium purpureum var. ustulatum]
                                                   [Gnaphalium ustulatum]
                                             Gamochaeta villarroelii
                                                   [Gnaphalium villarroeli]
                                     Garberia
                                             Garberia heterophylla
                                                   [Garberia fruticosa]
                                     Garhadiolus
                                             Garhadiolus hedypnois
                                                   [Rhagadiolus hedypnois]
                                     Gazania
                                             Gazania heterochaeta
                                             Gazania jurineifolia
                                             Gazania krebsiana
                                               Gazania krebsiana subsp. arctotoides
                                               Gazania krebsiana subsp. krebsiana
                                               Gazania krebsiana subsp. serrulata
                                             Gazania lichtensteinii
                                             Gazania linearis
                                                   [Gazania longiscapa]
                                                   [Gorteria linearis]
                                               Gazania linearis var. ovalis
                                             Gazania rigens
                                                   [Gazania splendens]
                                               Gazania rigens var. leucolaena
                                               Gazania rigens var. uniflora
                                                     [Gazania uniflora]
                                             Gazania rigida
                                                   [Gazania pinnata]
                                             Gazania serrata
                                             Gazania tenuifolia
                                     Geissolepis
                                             Geissolepis suaedifolia
                                     Georgia
                                     Geraea
                                             Geraea canescens
                                                   [Encelia eriocephala]
                                                   [Simsia canescens]
                                             Geraea viscida
                                                   [Encelia viscida]
                                     Gerbera
                                             Gerbera ambigua
                                             Gerbera galpinii
                                             Gerbera jamesonii
                                                   [Gerbera jamesoni]
                                             Gerbera linnaei
                                             Gerbera serrata
                                             Gerbera viridifolia
                                               Gerbera viridifolia subsp. viridifolia
                                     Geropogon
                                             Geropogon hybridus
                                                   [Tragopogon hybridus]
                                     Glebionis
                                             Glebionis carinata
                                                   [Chrysanthemum carinatum]
                                                   [Ismelia carinata]
                                             Glebionis coronaria
                                                   [Chrysanthemum coronarium]
                                                   [Glebionis coronaria var. coronaria]
                                                   [Glebionis coronaria var. discolor]
                                                   [Glebionis coronarium]
                                                   [Matricaria coronaria]
                                                   [Xantophtalmum coronarium]
                                             Glebionis segetum
                                                   [Chrysanthemum segetum]
                                                   [Matricaria segetum]
                                                   [Pyrethrum segetum]
                                                   [Xantophtalmum segetum]
                                     Glossocardia
                                             Glossocardia bidens
                                                   [Glossogyne tenuifolia]
                                             Glossocardia bosvallia
                                                   [Glossocardia linearifolia]
                                     Glossogyne
                                     Glyptopleura
                                             Glyptopleura marginata
                                             Glyptopleura setulosa
                                                   [Glyptopleura marginata var. setulosa]
                                     Gnaphaliothamnus
                                             Gnaphaliothamnus lavandulifolius
                                     Gnaphalium
                                             Gnaphalium affine
                                             Gnaphalium alpigenum
                                             Gnaphalium arenarium
                                             Gnaphalium declinatum
                                             Gnaphalium decurrens
                                             Gnaphalium exilifolium
                                                   [Gnaphalium grayi]
                                             Gnaphalium filagopsis
                                             Gnaphalium linearifolium
                                             Gnaphalium palustre
                                                   [Filaginella palustris]
                                                   [Gnaphalium palustre var. nanum]
                                             Gnaphalium polycaulon
                                             Gnaphalium uliginosum
                                             Gnaphalium unionis
                                             Gnaphalium viscosum
                                     Gnaphalodes
                                     Gochnatia
                                             Gochnatia foliolosa
                                               Gochnatia foliolosa var. fascicularis
                                                     [Gochnatia fascicularis]
                                             Gochnatia glutinosa
                                     Goldmanella
                                             Goldmanella sarmentosa
                                     Gonospermum
                                             Gonospermum fruticosum
                                             Gonospermum gomerae
                                             Gonospermum ptarmiciflorum
                                                   [Tanacetum ptarmiciflorum]
                                     Gonzalezia
                                             Gonzalezia decurrens
                                                   [Viguiera decurrens]
                                             Gonzalezia hypargyrea
                                     Gorteria
                                             Gorteria alienata
                                             Gorteria beguinotii
                                             Gorteria diffusa
                                             Gorteria gracilis
                                             Gorteria personata
                                     Grangea
                                             Grangea maderaspatana
                                     Greenella
                                     Grindelia
                                             Grindelia X paludosa
                                                   [Grindelia paludosa]
                                             Grindelia adenodonta
                                             Grindelia arizonica
                                                   [Grindelia laciniata]
                                                   [Grindelia scabra var. neomexicana]
                                             Grindelia camporum
                                                   [Grindelia camporum var. bracteosa]
                                                   [Grindelia camporum var. bracteosum]
                                                   [Grindelia camporum var. camporum]
                                                   [Grindelia camporum var. davyi]
                                                   [Grindelia hirsutula var. davyi]
                                                   [Grindelia procera]
                                                   [Grindelia robusta var. bracteosa]
                                                   [Grindelia robusta var. davyi]
                                                   [Grindelia rubricaulis var. bracteosa]
                                             Grindelia chiloensis
                                             Grindelia ciliata
                                                   [Donia ciliata]
                                                   [Haplopappus ciliatus]
                                                   [Prionopsis ciliata]
                                             Grindelia decumbens
                                             Grindelia fraxinipratensis
                                                   [Grindelia fraxino-pratensis]
                                             Grindelia glutinosa
                                                   [Grindelia integrifolia var. virgata]
                                                   [Grindelia oregana]
                                             Grindelia grandiflora
                                             Grindelia greenmanii
                                             Grindelia hallii
                                                   [Grindelia hirsutula var. hallii]
                                             Grindelia havardii
                                             Grindelia hirsutula
                                                   [Grindelia acutifolia]
                                                   [Grindelia bracteosa]
                                                   [Grindelia camporum var. abbreviata]
                                                   [Grindelia camporum var. australis]
                                                   [Grindelia camporum var. interioris]
                                                   [Grindelia camporum var. parviflora]
                                                   [Grindelia collina]
                                                   [Grindelia columbiana]
                                                   [Grindelia cuneifolia]
                                                   [Grindelia fastigiata]
                                                   [Grindelia hirsutula var. brevisquama]
                                                   [Grindelia hirsutula var. hirsutula]
                                                   [Grindelia hirsutula var. maritima]
                                                   [Grindelia hirsutula var. subintegra]
                                                   [Grindelia humilis]
                                                   [Grindelia integerrima]
                                                   [Grindelia integrifolia var. macrophylla]
                                                   [Grindelia maritima]
                                                   [Grindelia nana subsp. columbiana]
                                                   [Grindelia nana var. discoidea]
                                                   [Grindelia pacifica]
                                                   [Grindelia perennis]
                                                   [Grindelia procera]
                                                   [Grindelia robusta var. maritima]
                                                   [Grindelia robusta]
                                                   [Grindelia rubricaulis var. maritima]
                                                   [Grindelia squarrosa var. quasiperennis]
                                                   [Grindelia stricta subsp. venulosa]
                                             Grindelia hirtella
                                                   [Grindelia inuloides var. hirtella]
                                             Grindelia howellii
                                             Grindelia integrifolia
                                               Grindelia integrifolia var. integrifolia
                                             Grindelia inuloides
                                               Grindelia inuloides var. glandulosa
                                                     [Grindelia glandulosa]
                                             Grindelia lanceolata
                                               Grindelia lanceolata var. subincisa
                                                     [Grindelia decumbens var. subincisa]
                                             Grindelia leptocarpa
                                                   [Olivaea leptocarpa]
                                             Grindelia microcephala
                                             Grindelia nana
                                                   [Grindelia nana subsp. nana]
                                                   [Grindelia nana var. altissima]
                                                   [Grindelia nana var. nana]
                                                   [Grindelia nana var. turbinella]
                                             Grindelia nuda
                                               Grindelia nuda var. aphanactis
                                             Grindelia oxylepis
                                             Grindelia palmeri
                                             Grindelia robinsonii
                                             Grindelia rubricaulis
                                             Grindelia scabra
                                               Grindelia scabra var. scabra
                                             Grindelia squarrosa
                                                   [Grindelia aphanactis]
                                                   [Grindelia arguta]
                                                   [Grindelia nana var. integrifolia]
                                                   [Grindelia nuda var. aphanactis]
                                                   [Grindelia nuda]
                                                   [Grindelia squarrosa var. nuda]
                                                   [Grindelia squarrosa var. serrulata]
                                               Grindelia squarrosa var. quasiperennis
                                               Grindelia squarrosa var. serrulata
                                               Grindelia squarrosa var. squarrosa
                                             Grindelia stricta
                                               Grindelia stricta var. angustifolia
                                                     [Grindelia robusta var. angustifolia]
                                               Grindelia stricta var. platyphylla
                                                     [Grindelia latifolia subsp. latifolia]
                                                     [Grindelia latifolia subsp. platyphylla]
                                                     [Grindelia latifolia]
                                                     [Grindelia robusta var. platyphylla]
                                                     [Grindelia rubricaulis var. platyphylla]
                                                     [Grindelia venulosa]
                                               Grindelia stricta var. stricta
                                                     [Grindelia arenicola]
                                                     [Grindelia blakei]
                                                     [Grindelia stricta subsp. blakei]
                                                     [Grindelia stricta subsp. stricta]
                                             Grindelia subalpina
                                             Grindelia subdecurrens
                                             Grindelia texana
                                                   [Grindelia lanceolata var. texana]
                                             Grindelia tricuspis
                                                   [Olivaea tricuspis]
                                             Grindelia × paludosa
                                                   [Grindelia paludosa]
                                     Guardiola
                                             Guardiola arguta
                                                   [Guardiola tulocarpus var. arguta]
                                             Guardiola mexicana
                                               Guardiola mexicana var. angustifolia
                                                     [Guardiola angustifolia]
                                             Guardiola pappifera
                                             Guardiola platyphylla
                                             Guardiola rosei
                                             Guardiola rotundifolia
                                             Guardiola tulocarpus
                                     Guizotia
                                             Guizotia abyssinica
                                                   [Jaegeria abyssinica]
                                                   [Polymnia abyssinica]
                                             Guizotia jacksonii
                                             Guizotia scabra
                                             Guizotia zavattarii
                                     Gundlachia
                                             Gundlachia corymbosa
                                             Gundlachia diffusa
                                                   [Haplopappus sonoriensis]
                                                   [Xylothamia diffusa]
                                             Gundlachia triantha
                                                   [Ericameria triantha]
                                                   [Xylothamia triantha]
                                     Gutierrezia
                                             Gutierrezia alamanii
                                               Gutierrezia alamanii var. alamanii
                                             Gutierrezia argyrocarpa
                                             Gutierrezia arizonica
                                                   [Greenella arizonica]
                                             Gutierrezia baccharoides
                                             Gutierrezia californica
                                                   [Brachyris californica]
                                                   [Gutierrezia bracteata]
                                                   [Gutierrezia californica var. bracteata]
                                                   [Xanthocephalum californicum]
                                             Gutierrezia conoidea
                                             Gutierrezia euthamiae
                                             Gutierrezia grandis
                                             Gutierrezia linearifolia
                                             Gutierrezia megalocephala
                                                   [Gutierrezia alamanii var. megalocephala]
                                             Gutierrezia microcephala
                                                   [Brachyris microcephala]
                                                   [Gutierrezia euthamiae var. microcephala]
                                                   [Gutierrezia linoides]
                                                   [Gutierrezia lucida]
                                                   [Gutierrezia sarothrae var. microcephala]
                                                   [Xanthocephalum microcephalum]
                                             Gutierrezia ramulosa
                                                   [Greenella ramulosa]
                                             Gutierrezia resinosa
                                             Gutierrezia sarothrae
                                                   [Gutierrezia ionensis]
                                                   [Gutierrezia juncea]
                                                   [Gutierrezia laricina]
                                                   [Gutierrezia microphylla]
                                                   [Solidago sarothrae]
                                                   [Xanthocephalum sarothrae]
                                               Gutierrezia sarothrae var. sarothrae
                                             Gutierrezia serotina
                                             Gutierrezia sphaerocephala
                                                   [Xanthocephalum sphaerocephalum]
                                             Gutierrezia texana
                                                   [Xanthocephalum texanum]
                                               Gutierrezia texana var. glutinosa
                                               Gutierrezia texana var. texana
                                             Gutierrezia wrightii
                                                   [Xanthocephalum wrightii]
                                     Gymnanthemum
                                             Gymnanthemum amygdalinum
                                                   [Vernonia amygdalina]
                                             Gymnanthemum appendiculatum
                                                   [Vernonia appendiculata]
                                             Gymnanthemum capense
                                                   [Vernonia mespilifolia]
                                             Gymnanthemum coloratum
                                             Gymnanthemum corymbosum
                                                   [Vernonia tigna]
                                             Gymnanthemum crataegifolium
                                                   [Vernonia crataegifolia]
                                             Gymnanthemum exsertum
                                                   [Vernonia exserta]
                                             Gymnanthemum extensum
                                                   [Vernonia extensa]
                                             Gymnanthemum grande
                                                   [Vernonia grandis]
                                             Gymnanthemum myrianthum
                                             Gymnanthemum pectiniforme
                                               Gymnanthemum pectiniforme subsp. pectiniforme
                                                     [Vernonia pectiniformis]
                              Gymnarrhenoideae
                                     Gymnarrhena
                                             Gymnarrhena micrantha
                                     Gymnocoronis
                                             Gymnocoronis latifolia
                                                   [Gymnocoronis nutans]
                                             Gymnocoronis spilanthoides
                                     Gymnolaena
                                             Gymnolaena chiapasana
                                             Gymnolaena oaxacana
                                                   [Dyssodia oaxacana]
                                     Gymnolomia
                                             Gymnolomia encelioides
                                     Gymnosperma
                                             Gymnosperma glutinosum
                                                   [Gutierrezia glutinosum]
                                                   [Selloa glutinosa]
                                     Gymnostyles
                                     Gynoxys
                                             Gynoxys buxifolia
                                             Gynoxys hallii
                                     Gynura
                                             Gynura amplexicaulis
                                             Gynura aurantiaca
                                             Gynura colaniae
                                             Gynura cusimbua
                                             Gynura japonica
                                             Gynura procumbens
                                                   [Gynura sarmentosa]
                                             Gynura pseudochina
                                             Gynura scandens
                                             Gynura sechellensis
                                     Gypothamnium
                                             Gypothamnium pinifolium
                                     Haplocarpha
                                             Haplocarpha lyrata
                                             Haplocarpha nervosa
                                             Haplocarpha oocephala
                                                   [Arctotis oocephala]
                                             Haplocarpha rueppelii
                                                   [Haplocarpha rueppellii]
                                             Haplocarpha scaposa
                                     Haploesthes
                                             Haploesthes fruticosa
                                             Haploesthes greggii
                                               Haploesthes greggii var. texana
                                     Haplopappus
                                             Haplopappus angustifolius
                                               Haplopappus angustifolius subsp. saxatilis
                                                     [Pyrrocoma saxatilis]
                                             Haplopappus anthylloides
                                                   [Haplopappus radicans]
                                             Haplopappus baylahuen
                                               Haplopappus baylahuen subsp. baylahuen
                                                     [Haplopappus lastarrianus]
                                             Haplopappus canescens
                                             Haplopappus chrysanthemifolius
                                                   [Haplopappus berteroi]
                                             Haplopappus coquimbensis
                                                   [Diplopappus coquimbensis]
                                             Haplopappus decurrens
                                             Haplopappus diplopappus
                                             Haplopappus donianus
                                                   [Diplopappus donianus]
                                             Haplopappus foliosus
                                               Haplopappus foliosus subsp. foliosus
                                                     [Haplopappus polyphyllus]
                                               Haplopappus foliosus subsp. meyenii
                                                     [Haplopappus meyenii]
                                             Haplopappus glutinosus
                                                   [Haplopappus arbutoides]
                                             Haplopappus grindelioides
                                                   [Haplopappus marginalis]
                                             Haplopappus hamatus
                                             Haplopappus hirtellus
                                             Haplopappus integerrimus
                                             Haplopappus macrocephalus
                                             Haplopappus mucronatus
                                                   [Haplopappus hookerianus]
                                                   [Haplopappus ilicifolius]
                                             Haplopappus multifolius
                                               Haplopappus multifolius subsp. multifolius
                                                     [Diplopappus ilicifolius]
                                             Haplopappus paniculatus
                                             Haplopappus pedunculosus
                                             Haplopappus pinnatifidus
                                                   [Diplopappus setiger]
                                                   [Haplopappus setigerus]
                                             Haplopappus pristiphyllus
                                                   [Pyrrocoma pristiphylla]
                                             Haplopappus pulchellus
                                             Haplopappus punctatus
                                                   [Conyza punctata]
                                             Haplopappus pusillus
                                                   [Diplopappus bellidifolius]
                                             Haplopappus remyanus
                                                   [Pyrrocoma ilicifolia]
                                             Haplopappus rosulatus
                                             Haplopappus scrobiculatus
                                                   [Diplopappus cuneatus]
                                             Haplopappus spinulosus
                                               Haplopappus spinulosus subsp. spinulosus
                                             Haplopappus traskae
                                             Haplopappus uncinatus
                                             Haplopappus valparadisiacus
                                                   [Diplopappus inuloides]
                                             Haplopappus velutinus
                                               Haplopappus velutinus subsp. illinitus
                                                     [Haplopappus illinitus]
                                               Haplopappus velutinus subsp. longipes
                                                     [Haplopappus longipes]
                                                     [Pyrrocoma longipes]
                                             Haplopappus venetus
                                     Harleya
                                             Harleya oxylepis
                                     Harmonia
                                             Harmonia doris-nilesiae
                                                   [Madia doris-nilesiae]
                                             Harmonia guggolziorum
                                             Harmonia hallii
                                                   [Madia hallii]
                                             Harmonia nutans
                                                   [Blepharipappus nutans]
                                                   [Callichroa nutans]
                                                   [Layia nutans]
                                                   [Madia nutans]
                                             Harmonia stebbinsii
                                                   [Madia stebbinsii]
                                     Harpaecarpus
                                     Hartwrightia
                                             Hartwrightia floridana
                                     Hasteola
                                             Hasteola suaveolens
                                     Hatschbachiella
                                             Hatschbachiella tweedieana
                                                   [Eupatorium steviifolium var. viscosum]
                                                   [Eupatorium steviifolium]
                                     Hazardia
                                             Hazardia berberidis
                                                   [Haplopappus berberidis]
                                             Hazardia brickellioides
                                                   [Haplopappus brickellioides]
                                             Hazardia cana
                                                   [Corethrogyne cana]
                                                   [Diplostephium canum]
                                                   [Haplopappus canus]
                                             Hazardia detonsa
                                                   [Corethrogyne detonsa]
                                                   [Haplopappus detonsus]
                                             Hazardia enormidens
                                                   [Haplopappus enormidens]
                                             Hazardia ferrisiae
                                                   [Haplopappus ferrisiae]
                                             Hazardia odontolepis
                                                   [Haplopappus odontolepis]
                                             Hazardia orcuttii
                                                   [Haplopappus orcuttii]
                                             Hazardia rosarica
                                                   [Haplopappus rosaricus]
                                             Hazardia squarrosa
                                                   [Aplopappus squarrosus]
                                                   [Haplopappus squarrosus]
                                               Hazardia squarrosa var. grindelioides
                                                     [Aster grindelioides]
                                                     [Haplopappus squarrosus subsp. grindelioides]
                                               Hazardia squarrosa var. obtusa
                                                     [Haplopappus squarrosus subsp. obtusus]
                                                     [Hazardia obtusa]
                                               Hazardia squarrosa var. squarrosa
                                                     [Haplopappus squarrosus subsp. squarrosus]
                                             Hazardia stenolepis
                                                   [Haplopappus squarrosus subsp. stenolepis]
                                             Hazardia vernicosa
                                                   [Haplopappus vernicosus]
                                             Hazardia whitneyi
                                                   [Aplopappus whitneyi]
                                                   [Aster whitneyi]
                                                   [Haplopappus whitneyi subsp. whitneyi]
                                                   [Haplopappus whitneyi var. whitneyi]
                                                   [Haplopappus whitneyi]
                                               Hazardia whitneyi var. discoidea
                                                     [Haplopappus whitneyi subsp. discoideus]
                                                     [Haplopappus whitneyi var. discoideus]
                                               Hazardia whitneyi var. whitneyi
                                                     [Haplopappus whitneyi subsp. whitneyi]
                                                     [Haplopappus whitneyi var. whitneyi]
                                     Hebeclinium
                                             Hebeclinium erioclinium
                                             Hebeclinium killipii
                                             Hebeclinium macrophyllum
                                                   [Eupatorium macrophyllum]
                                             Hebeclinium obtusisquamosum
                                             Hebeclinium tetragonum
                                     Hecastocleis
                                             Hecastocleis shockleyi
                                     Hedosyne
                                             Hedosyne ambrosiifolia
                                                   [Iva ambrosiifolia]
                                     Hedypnois
                                             Hedypnois arenaria
                                             Hedypnois rhagadioloides
                                                   [Hedypnois cretica]
                                                   [Hyoseris cretica]
                                               Hedypnois rhagadioloides subsp. rhagadioloides
                                                     [Hedypnois cretica]
                                                     [Hedypnois monspeliensis]
                                     Heleniastrum
                                     Helenium
                                             Helenium amarum
                                                   [Helenium tenuifolium]
                                               Helenium amarum var. amarum
                                                     [Gaillardia amara]
                                                     [Helenium tenuifolium]
                                               Helenium amarum var. badium
                                                     [Helenium tenuifolium var. badium]
                                             Helenium arizonicum
                                             Helenium aromaticum
                                                   [Cephalophora aromatica]
                                             Helenium atacamense
                                             Helenium autumnale
                                                   [Heleniastrum autumnale]
                                                   [Helenium altissimum]
                                                   [Helenium autumnale var. canaliculatum]
                                                   [Helenium autumnale var. fylesii]
                                                   [Helenium autumnale var. grandiflorum]
                                                   [Helenium autumnale var. montanum]
                                                   [Helenium autumnale var. parviflorum]
                                                   [Helenium canaliculatum]
                                                   [Helenium edwardsianum]
                                                   [Helenium grandiflorum]
                                                   [Helenium huronense]
                                                   [Helenium latifolium]
                                                   [Helenium macranthum]
                                                   [Helenium montanum]
                                                   [Helenium parviflorum]
                                             Helenium bigelovii
                                                   [Heleniastrum bigelovii]
                                                   [Heleniastrum occidentale]
                                                   [Heleniastrum rivulare]
                                                   [Helenium puberulum var. bigelovii]
                                                   [Helenium rivulare]
                                             Helenium bolanderi
                                                   [Dugaldia grandiflora]
                                                   [Heleniastrum bolanderi]
                                                   [Helenium bigelovii var. festivum]
                                             Helenium brevifolium
                                             Helenium drummondii
                                             Helenium elegans
                                             Helenium flexuosum
                                                   [Helenium nudiflorum]
                                             Helenium laciniatum
                                             Helenium linifolium
                                             Helenium mexicanum
                                             Helenium microcephalum
                                               Helenium microcephalum var. microcephalum
                                               Helenium microcephalum var. ooclinium
                                             Helenium pinnatifidum
                                             Helenium puberulum
                                                   [Cephalophora decurrens]
                                                   [Heleniastrum puberulum]
                                                   [Helenium autumnale var. pubescens]
                                                   [Helenium californicum]
                                                   [Helenium decurrens]
                                                   [Helenium pubescens]
                                                   [Helenium rosilla]
                                             Helenium quadridentatum
                                             Helenium scorzonerifolium
                                             Helenium thurberi
                                             Helenium urmenetae
                                               Helenium urmenetae var. leguiffei
                                               Helenium urmenetae var. urmenetae
                                             Helenium vernale
                                     Helianthella
                                             Helianthella californica
                                               Helianthella californica subsp. californica
                                               Helianthella californica subsp. nevadensis
                                                     [Helianthella californica var. nevadensis]
                                                     [Helianthella nevadensis]
                                               Helianthella californica subsp. shastensis
                                                     [Helianthella californica var. shastensis]
                                               Helianthella californica var. californica
                                                     [Helianthella californica subsp. californica]
                                               Helianthella californica var. nevadensis
                                                     [Helianthella californica subsp. nevadensis]
                                               Helianthella californica var. shastensis
                                                     [Helianthella californica subsp. shastensis]
                                             Helianthella castanea
                                                   [Helianthella cannonae]
                                             Helianthella ciliata
                                             Helianthella durangensis
                                             Helianthella mexicana
                                             Helianthella microcephala
                                             Helianthella parryi
                                             Helianthella quinquenervis
                                             Helianthella uniflora
                                                   [Helianthella douglasii]
                                                   [Helianthella multicaulis]
                                                   [Helianthella uniflora var. douglasii]
                                               Helianthella uniflora var. uniflora
                                     Helianthus
                                             Helianthus agrestis
                                             Helianthus angustifolius
                                             Helianthus annuus
                                                   [Helianthus annuus subsp. jaegeri]
                                                   [Helianthus annuus subsp. lenticularis]
                                                   [Helianthus annuus var. lenticularis]
                                                   [Helianthus annuus var. macrocarpus]
                                                   [Helianthus annuus var. texanus]
                                                   [Helianthus aridus]
                                                   [Helianthus jaegeri]
                                                   [Helianthus lenticularis]
                                             Helianthus anomalus
                                             Helianthus argophyllus
                                             Helianthus arizonensis
                                             Helianthus atrorubens
                                             Helianthus bolanderi
                                                   [Helianthus exilis]
                                             Helianthus californicus
                                             Helianthus carnosus
                                             Helianthus ciliaris
                                             Helianthus cusickii
                                             Helianthus debilis
                                               Helianthus debilis subsp. cucumerifolius
                                               Helianthus debilis subsp. debilis
                                               Helianthus debilis subsp. silvestris
                                             Helianthus decapetalus
                                                   [Helianthus trachelifolius]
                                             Helianthus deserticola
                                             Helianthus devernii
                                             Helianthus divaricatus
                                             Helianthus exilis
                                             Helianthus floridanus
                                                   [Helianthus undulatus]
                                             Helianthus giganteus
                                             Helianthus glaucophyllus
                                             Helianthus gracilentus
                                             Helianthus grosseserratus
                                                   [Helianthus instabilis]
                                             Helianthus heterophyllus
                                             Helianthus hirsutus
                                                   [Helianthus stenophyllus]
                                             Helianthus inexpectatus
                                             Helianthus laciniatus
                                             Helianthus laetiflorus
                                                   [Helianthus scaberrimus]
                                             Helianthus laevigatus
                                             Helianthus maximiliani
                                             Helianthus maximilianii
                                             Helianthus microcephalus
                                                   [Helianthus tracheliifolius]
                                             Helianthus mollis
                                             Helianthus niveus
                                               Helianthus niveus subsp. niveus
                                               Helianthus niveus subsp. tephrodes
                                                     [Helianthus niveus var. tephrodes]
                                                     [Helianthus tephrodes]
                                                     [Viguiera tephrodes]
                                             Helianthus nuttallii
                                               Helianthus nuttallii parishii
                                               Helianthus nuttallii subsp. nuttallii
                                                     [Helianthus fascicularis]
                                                     [Helianthus nuttallii var. nuttallii]
                                                     [Helianthus utahensis]
                                               Helianthus nuttallii subsp. parishii
                                                     [Helianthus californicus var. parishii]
                                                     [Helianthus oliveri]
                                                     [Helianthus parishii]
                                               Helianthus nuttallii subsp. rydbergii
                                                     [Helianthus nuttallii var. rydbergii]
                                                     [Helianthus rydbergii]
                                             Helianthus occidentalis
                                               Helianthus occidentalis subsp. occidentalis
                                                     [Helianthus occidentalis var. dowellianus]
                                             Helianthus parviflorus
                                             Helianthus pauciflorus
                                               Helianthus pauciflorus subsp. pauciflorus
                                                     [Helianthus rigidus subsp. rigidus]
                                                     [Helianthus rigidus]
                                               Helianthus pauciflorus subsp. subrhomboideus
                                                     [Helianthus pauciflorus var. subrhomboideus]
                                                     [Helianthus rigidus subsp. subrhomboideus]
                                                     [Helianthus subrhomboideus]
                                             Helianthus petiolaris
                                               Helianthus petiolaris subsp. canescens
                                                     [Helianthus niveus subsp. canescens]
                                                     [Helianthus petiolaris var. canescens]
                                               Helianthus petiolaris subsp. fallax
                                                     [Helianthus petiolaris var. fallax]
                                               Helianthus petiolaris subsp. petiolaris
                                                     [Helianthus petiolaris var. petiolaris]
                                               Helianthus petiolaris var. canescens
                                                     [Helianthus canus]
                                                     [Helianthus niveus subsp. canescens]
                                             Helianthus porteri
                                                   [Viguiera porteri]
                                             Helianthus praecox
                                               Helianthus praecox var. hirtus
                                                     [Helianthus praecox subsp. hirtus]
                                             Helianthus pumilus
                                             Helianthus radula
                                             Helianthus resinosus
                                             Helianthus salicifolius
                                             Helianthus silphioides
                                             Helianthus simulans
                                             Helianthus strumosus
                                             Helianthus tuberosus
                                                   [Helianthus tomentosus]
                                                   [Helianthus tuberosus var. subcanescens]
                                             Helianthus winteri
                                             Helianthus × glaucus
                                                   [Helianthus glaucus]
                                     Helichrysum
                                             Helichrysum abietifolium
                                             Helichrysum acutatum
                                             Helichrysum adenocarpum
                                             Helichrysum albicans
                                             Helichrysum allioides
                                             Helichrysum ammitophilum
                                             Helichrysum angustifrondeum
                                             Helichrysum anomalum
                                             Helichrysum appendiculatum
                                             Helichrysum arenarium
                                               Helichrysum arenarium subsp. arenarium
                                             Helichrysum arenicola
                                             Helichrysum argyranthum
                                             Helichrysum argyrolepis
                                             Helichrysum argyrophyllum
                                             Helichrysum argyrosphaerum
                                             Helichrysum asperum
                                             Helichrysum aureum
                                             Helichrysum bracteiferum
                                             Helichrysum brownei
                                             Helichrysum buchananii
                                             Helichrysum caespititium
                                             Helichrysum callicomum
                                             Helichrysum calocladum
                                             Helichrysum candolleanum
                                             Helichrysum cephaloideum
                                             Helichrysum cerastioides
                                             Helichrysum chermezonii
                                             Helichrysum chionoides
                                             Helichrysum chionosphaerum
                                             Helichrysum chrysargyrum
                                             Helichrysum citrispinum
                                               Helichrysum citrispinum var. hoehnelii
                                             Helichrysum cooperi
                                             Helichrysum cordifolium
                                             Helichrysum coriaceum
                                             Helichrysum crispum
                                             Helichrysum cryptomerioides
                                             Helichrysum cylindriflorum
                                             Helichrysum cymosum
                                             Helichrysum dasyanthum
                                             Helichrysum dasycephalum
                                             Helichrysum decorum
                                             Helichrysum dichotomum
                                             Helichrysum diffusum
                                             Helichrysum dregeanum
                                             Helichrysum dubardii
                                             Helichrysum ecklonis
                                             Helichrysum elegantissimum
                                             Helichrysum ellipticifolium
                                             Helichrysum excisum
                                             Helichrysum felinum
                                             Helichrysum ferrugineum
                                             Helichrysum flanaganii
                                             Helichrysum foetidum
                                             Helichrysum fruticans
                                             Helichrysum galpinii
                                             Helichrysum gariepinum
                                             Helichrysum globosum
                                             Helichrysum glomeratum
                                             Helichrysum glumaceum
                                             Helichrysum goetzeanum
                                             Helichrysum gymnocephalum
                                             Helichrysum harveyanum
                                             Helichrysum hebelepis
                                             Helichrysum helianthemifolium
                                             Helichrysum herbaceum
                                             Helichrysum herniarioides
                                             Helichrysum heywoodianum
                                             Helichrysum indicum
                                             Helichrysum italicum
                                             Helichrysum kirkii
                                               Helichrysum kirkii var. petersii
                                             Helichrysum kraussii
                                             Helichrysum lacteum
                                             Helichrysum lastii
                                             Helichrysum leontonyx
                                             Helichrysum lepidissimum
                                             Helichrysum litorale
                                             Helichrysum litoreum
                                                   [Helichrysum angustifolium]
                                             Helichrysum madagascariense
                                             Helichrysum maranguense
                                             Helichrysum marginatum
                                             Helichrysum mariepscopicum
                                             Helichrysum marmarolepis
                                             Helichrysum mechowianum
                                               Helichrysum mechowianum var. ceres
                                             Helichrysum melanacme
                                             Helichrysum meyeri-johannis
                                             Helichrysum miconiifolium
                                             Helichrysum micropoides
                                             Helichrysum mixtum
                                             Helichrysum moeserianum
                                             Helichrysum monticola
                                             Helichrysum nanum
                                             Helichrysum nitens
                                               Helichrysum nitens subsp. robynsii
                                             Helichrysum niveum
                                             Helichrysum nudifolium
                                               Helichrysum nudifolium var. nudifolium
                                               Helichrysum nudifolium var. oxyphyllum
                                               Helichrysum nudifolium var. pilosellum
                                             Helichrysum obductum
                                             Helichrysum obtusum
                                             Helichrysum odoratissimum
                                             Helichrysum opacum
                                             Helichrysum oreophilum
                                             Helichrysum panduratum
                                             Helichrysum pandurifolium
                                             Helichrysum paronychioides
                                             Helichrysum patulifolium
                                             Helichrysum patulum
                                             Helichrysum pendulum
                                             Helichrysum petiolare
                                                   [Helichrysum petiolatum]
                                             Helichrysum plantago
                                             Helichrysum polycladum
                                             Helichrysum psilolepis
                                             Helichrysum pulchellum
                                             Helichrysum pumilio
                                               Helichrysum pumilio subsp. fleckii
                                             Helichrysum quartinianum
                                             Helichrysum reflexum
                                             Helichrysum retortoides
                                             Helichrysum retrorsum
                                             Helichrysum revolutum
                                             Helichrysum rosum
                                             Helichrysum rotundifolium
                                             Helichrysum rugulosum
                                             Helichrysum rupicola
                                             Helichrysum schimperi
                                             Helichrysum sessile
                                             Helichrysum setosum
                                             Helichrysum sordidum
                                             Helichrysum spiralepis
                                             Helichrysum splendidum
                                             Helichrysum stenopterum
                                             Helichrysum stoechas
                                                   [Helichrysum conglobatum]
                                               Helichrysum stoechas subsp. barrelieri
                                             Helichrysum stuhlmannii
                                             Helichrysum subglomeratum
                                             Helichrysum subluteum
                                             Helichrysum sutherlandii
                                             Helichrysum teretifolium
                                             Helichrysum thapsus
                                             Helichrysum tillandsiifolium
                                             Helichrysum tinctum
                                             Helichrysum tomentosulum
                                             Helichrysum trilineatum
                                             Helichrysum umbraculigerum
                                             Helichrysum whitei
                                             Helichrysum wilmsii
                                             Helichrysum zeyheri
                                     Heliomeris
                                             Heliomeris hispida
                                             Heliomeris longifolia
                                                   [Viguiera longifolia]
                                               Heliomeris longifolia var. annua
                                                     [Heliomeris annua]
                                                     [Viguiera annua]
                                               Heliomeris longifolia var. longifolia
                                             Heliomeris multiflora
                                                   [Gymnolomia multiflora]
                                                   [Viguiera multiflora var. multiflora]
                                                   [Viguiera multiflora]
                                               Heliomeris multiflora var. brevifolia
                                                     [Viguiera ovalis]
                                               Heliomeris multiflora var. multiflora
                                               Heliomeris multiflora var. nevadensis
                                                     [Gymnolomia nevadensis]
                                                     [Heliomeris nevadensis]
                                                     [Viguiera multiflora var. nevadensis]
                                             Heliomeris soliceps
                                                   [Viguiera soliceps]
                                     Heliopsis
                                             Heliopsis annua
                                             Heliopsis anomala
                                                   [Encelia anomala]
                                             Heliopsis filifolia
                                             Heliopsis gracilis
                                                   [Heliopsis helianthoides var. gracilis]
                                             Heliopsis helianthoides
                                                   [Heliopsis laevis]
                                                   [Heliopsis oppositifolia]
                                               Heliopsis helianthoides var. helianthoides
                                               Heliopsis helianthoides var. scabra
                                                     [Heliopsis scabra]
                                             Heliopsis parvifolia
                                                   [Heliopsis parvifolia var. rubra]
                                                   [Heliopsis rubra]
                                             Heliopsis procumbens
                                     Helipterum
                                             Helipterum roseum
                                     Helminthia
                                     Helminthotheca
                                             Helminthotheca aculeata
                                             Helminthotheca balansae
                                             Helminthotheca comosa
                                             Helminthotheca echioides
                                                   [Helminthia echioides]
                                                   [Picris echioides]
                                     Helogyne
                                             Helogyne apaloidea
                                             Helogyne hutchisonii
                                     Hemibaccharis
                                     Hemizonella
                                             Hemizonella minima
                                                   [Harpaecarpus minimus]
                                                   [Hemizonella minima var. parvula]
                                                   [Hemizonella parvula]
                                                   [Hemizonia minima]
                                                   [Hemizonia parvula]
                                                   [Madia minima]
                                                   [Melampodium minimum]
                                     Hemizonia
                                             Hemizonia angustifolia
                                             Hemizonia congesta
                                               Hemizonia congesta subsp. calyculata
                                                     [Hemizonia calyculata]
                                                     [Hemizonia congesta var. calyculata]
                                               Hemizonia congesta subsp. clevelandii
                                                     [Hemizonia clevelandii]
                                               Hemizonia congesta subsp. congesta
                                                     [Hemizonia congesta subsp. leucocephala]
                                                     [Hemizonia congesta subsp. typica]
                                                     [Hemizonia congesta subsp. vernalis]
                                                     [Hemizonia congesta var. congesta]
                                                     [Hemizonia leucocephala]
                                               Hemizonia congesta subsp. lutescens
                                                     [Hemizonia citrina]
                                                     [Hemizonia congesta var. lutescens]
                                                     [Hemizonia decumbens]
                                                     [Hemizonia lutescens]
                                                     [Hemizonia luzulifolia var. citrina]
                                                     [Hemizonia multicaulis subsp. vernalis]
                                                     [Hemizonia multicaulis]
                                               Hemizonia congesta subsp. luzulifolia
                                                     [Hemizonia congesta subsp. luzulaefolia]
                                                     [Hemizonia congesta var. luzulaefolia]
                                                     [Hemizonia congesta var. luzulifolia]
                                                     [Hemizonia luzulifolia subsp. luzulifolia]
                                                     [Hemizonia luzulifolia subsp. rudis]
                                                     [Hemizonia luzulifolia]
                                               Hemizonia congesta subsp. tracyi
                                                     [Hemizonia congesta var. tracyi]
                                                     [Hemizonia tracyi]
                                             Hemizonia wrightii
                                     Henricksonia
                                             Henricksonia mexicana
                                     Herrickia
                                     Hesperevax
                                             Hesperevax acaulis
                                                   [Evax acaulis]
                                                   [Stylocline acaulis]
                                               Hesperevax acaulis var. acaulis
                                               Hesperevax acaulis var. ambusticola
                                               Hesperevax acaulis var. robustior
                                             Hesperevax caulescens
                                                   [Evax acaulis]
                                                   [Evax caulescens]
                                                   [Evax involucrata]
                                                   [Micropus caulescens]
                                                   [Psilocarphus caulescens]
                                             Hesperevax sparsiflora
                                                   [Evax sparsiflora]
                                               Hesperevax sparsiflora var. brevifolia
                                                     [Evax brevifolia]
                                                     [Evax caulescens var. brevifolia]
                                                     [Evax sparsiflora var. brevifolia]
                                                     [Hesperevax brevifolia]
                                               Hesperevax sparsiflora var. sparsiflora
                                                     [Evax caulescens var. sparsiflora]
                                     Hesperodoria
                                     Heteranthemis
                                             Heteranthemis viscidi-hirta
                                             Heteranthemis viscidihirta
                                                   [Heteranthemis viscidehirta]
                                     Heterocoma
                                             Heterocoma albida
                                     Heterocondylus
                                             Heterocondylus alatus
                                             Heterocondylus vitalbae
                                     Heterolepis
                                             Heterolepis aliena
                                     Heterosperma
                                             Heterosperma mexicanum
                                                   [Coreopsis cyclocarpa]
                                               Heterosperma mexicanum var. pinnatisectum
                                                     [Coreopsis pinnatisecta]
                                                     [Leptosyne pringlei]
                                             Heterosperma ovatifolium
                                                   [Heterosperma rhombifolium]
                                             Heterosperma pinnatum
                                     Heterothalamus
                                     Heterotheca
                                             Heterotheca angustifolia
                                             Heterotheca arenaria
                                             Heterotheca arizonica
                                                   [Heterotheca fulcrata var. arizonica]
                                             Heterotheca ballardii
                                             Heterotheca bolanderi
                                             Heterotheca brandegeei
                                             Heterotheca brandegei
                                                   [Chrysopsis brandegei]
                                             Heterotheca camphorata
                                                   [Chrysopsis vestita]
                                             Heterotheca camporum
                                               Heterotheca camporum var. camporum
                                               Heterotheca camporum var. glandulissimum
                                             Heterotheca canescens
                                             Heterotheca chihuahuana
                                                   [Osbertia chihuahuana]
                                             Heterotheca cinerascens
                                                   [Heterotheca horrida subsp. cinerascens]
                                             Heterotheca excelsior
                                             Heterotheca fulciens
                                             Heterotheca fulcrata
                                                   [Chrysopsis fulcrata]
                                                   [Chrysopsis resinolens]
                                               Heterotheca fulcrata var. amplifolia
                                               Heterotheca fulcrata var. fulcrata
                                             Heterotheca grandiflora
                                             Heterotheca hartmanii
                                             Heterotheca hirsuta
                                             Heterotheca hirsutissima
                                                   [Heterotheca horrida]
                                             Heterotheca hispida
                                             Heterotheca inflata
                                             Heterotheca inuloides
                                               Heterotheca inuloides var. inuloides
                                               Heterotheca inuloides var. rosei
                                             Heterotheca jonesii
                                             Heterotheca joshuana
                                             Heterotheca marginata
                                             Heterotheca martirensis
                                             Heterotheca mexicana
                                             Heterotheca monarchensis
                                             Heterotheca mucronata
                                             Heterotheca oregona
                                                   [Ammodia oregona]
                                                   [Brickellia cumingii]
                                                   [Chrysopsis oregona var. oregona]
                                                   [Chrysopsis oregona]
                                               Heterotheca oregona var. compacta
                                                     [Chrysopsis oregona var. compacta]
                                               Heterotheca oregona var. oregona
                                               Heterotheca oregona var. rudis
                                                     [Chrysopsis oregona var. rudis]
                                               Heterotheca oregona var. scaberrima
                                                     [Chrysopsis oregona var. scaberrima]
                                                     [Heterotheca scaberrima]
                                             Heterotheca orovillosa
                                             Heterotheca paniculata
                                             Heterotheca pedunculata
                                                   [Chrysopsis bakeri]
                                             Heterotheca polothrix
                                                   [Heterotheca villosa var. scabra]
                                             Heterotheca pumila
                                             Heterotheca resinolens
                                                   [Chrysopsis caudata]
                                             Heterotheca rudis
                                             Heterotheca rutteri
                                                   [Chrysopsis rutteri]
                                             Heterotheca sessiliflora
                                                   [Chrysopsis sessiliflora]
                                               Heterotheca sessiliflora subsp. bolanderi
                                                     [Chrysopsis arenaria]
                                                     [Chrysopsis bolanderi]
                                                     [Chrysopsis villosa var. bolanderi]
                                                     [Heterotheca echioides var. bolanderi]
                                               Heterotheca sessiliflora subsp. echioides
                                                     [Chrysopsis californica]
                                                     [Chrysopsis camphorata]
                                                     [Chrysopsis echioides]
                                                     [Chrysopsis villosa var. camphorata]
                                                     [Chrysopsis villosa var. echioides]
                                                     [Heterotheca camphorata]
                                                     [Heterotheca echioides var. echioides]
                                                     [Heterotheca echioides]
                                                     [Heterotheca sessiliflora var. bolanderioides]
                                                     [Heterotheca sessiliflora var. camphorata]
                                                     [Heterotheca sessiliflora var. echioides]
                                               Heterotheca sessiliflora subsp. fastigiata
                                                     [Chrysopsis fastigiata]
                                                     [Chrysopsis villosa var. fastigiata]
                                                     [Heterotheca fastigiata]
                                                     [Heterotheca sessiliflora var. fastigiata]
                                                     [Heterotheca sessiliflora var. sanjacintensis]
                                               Heterotheca sessiliflora subsp. sessiliflora
                                                     [Chrysopsis villosa var. sessiliflora]
                                                     [Heterotheca sessiliflora var. sessiliflora]
                                               Heterotheca sessiliflora var. thiniicola
                                                     [Haplopappus thiniicola]
                                                     [Heterotheca thiniicola]
                                             Heterotheca shevockii
                                                   [Heterotheca villosa var. shevockii]
                                             Heterotheca sierrablancensis
                                             Heterotheca stenophylla
                                                   [Chrysopsis hispida var. stenophylla]
                                                   [Chrysopsis stenophylla]
                                               Heterotheca stenophylla var. angustifolia
                                               Heterotheca stenophylla var. stenophylla
                                             Heterotheca subaxillaris
                                               Heterotheca subaxillaris subsp. latifolia
                                                     [Heterotheca latifolia var. latifolia]
                                                     [Heterotheca latifolia var. macgregoris]
                                                     [Heterotheca latifolia]
                                                     [Heterotheca psammophila]
                                                     [Heterotheca subaxillaris var. latifolia]
                                                     [Heterotheca subaxillaris var. psammophila]
                                               Heterotheca subaxillaris subsp. subaxillaris
                                             Heterotheca utahensis
                                             Heterotheca vespertina
                                             Heterotheca villosa
                                                   [Chrysopsis canescens]
                                                   [Chrysopsis villosa]
                                               Heterotheca villosa var. ballardii
                                               Heterotheca villosa var. foliosa
                                                     [Chrysopsis foliosa]
                                                     [Heterotheca foliosa]
                                               Heterotheca villosa var. minor
                                                     [Chrysopsis asprella]
                                                     [Chrysopsis barbata]
                                                     [Chrysopsis compacta]
                                                     [Chrysopsis hirsutissima]
                                                     [Chrysopsis hispida]
                                                     [Chrysopsis villosa var. hispida]
                                                     [Chrysopsis villosa var. minor]
                                                     [Heterotheca villosa var. hispida]
                                               Heterotheca villosa var. nana
                                               Heterotheca villosa var. pedunculata
                                                     [Chrysopsis pedunculata]
                                               Heterotheca villosa var. scabra
                                               Heterotheca villosa var. villosa
                                                     [Chrysopsis villosa var. villosa]
                                             Heterotheca villosissima
                                             Heterotheca viridis
                                                   [Heterotheca inuloides var. viridis]
                                             Heterotheca viscida
                                                   [Chrysopsis viscida]
                                             Heterotheca zionensis
                                     Hidalgoa
                                             Hidalgoa ternata
                                                   [Hidalgoa breedlovei]
                                     Hieraciodes
                                     Hieracioides
                                     Hieracium
                                             Hieracium abscissum
                                                   [Hieracium comatum]
                                                   [Pilosella abscissa]
                                             Hieracium acidotum
                                             Hieracium albiflorum
                                                   [Chlorocrepis albiflora]
                                                   [Pilosella albiflora]
                                             Hieracium amplexicaule
                                             Hieracium amplificatum
                                             Hieracium anthracinum
                                             Hieracium argutum
                                                   [Hieracium argutum var. argutum]
                                                   [Hieracium argutum var. parishii]
                                                   [Hieracium parishii]
                                             Hieracium aurantiacum
                                             Hieracium babcockii
                                             Hieracium basifolium
                                             Hieracium bifidum
                                             Hieracium bolanderi
                                             Hieracium carneum
                                             Hieracium cascadorum
                                             Hieracium chondrillifolium
                                               Hieracium chondrillifolium subsp. morascanum
                                                     [Hieracium ossolanum]
                                             Hieracium ciliatum
                                             Hieracium compositum
                                                   [Hieracium plecophyllum]
                                             Hieracium crepidispermum
                                                   [Hieracium lemmonii]
                                             Hieracium cuspidatum
                                             Hieracium diaphanum
                                             Hieracium dolabratum
                                             Hieracium dysonymum
                                             Hieracium elegans
                                             Hieracium elisaeanum
                                               Hieracium elisaeanum subsp. elisaeanum
                                                     [Hieracium almerianum]
                                             Hieracium eriadenium
                                             Hieracium fendleri
                                               Hieracium fendleri subsp. fendleri
                                               Hieracium fendleri var. fendleri
                                             Hieracium flagellare
                                             Hieracium grandidens
                                             Hieracium greenei
                                                   [Hieracium oregonicum]
                                             Hieracium grinnellii
                                             Hieracium gronovii
                                             Hieracium harzianum
                                             Hieracium herrerae
                                             Hieracium hintonii
                                             Hieracium hispanicum
                                             Hieracium horridum
                                                   [Hieracium breweri]
                                                   [Pilosella horrida]
                                             Hieracium howellii
                                             Hieracium hypochaeroides
                                               Hieracium hypochaeroides subsp. wiesbaurianum
                                                     [Hieracium wiesbaurianum]
                                             Hieracium jutlandicum
                                             Hieracium kennedyi
                                             Hieracium lachenalii
                                               Hieracium lachenalii subsp. lachenalii
                                                     [Hieracium vulgatum]
                                               Hieracium lachenalii subsp. tenellicaule
                                                     [Hieracium tenuicaule]
                                             Hieracium longiberbe
                                             Hieracium macdonaldii
                                             Hieracium megalanthelum
                                             Hieracium murorum
                                             Hieracium nigriceps
                                             Hieracium nitens
                                             Hieracium nudicaule
                                                   [Hieracium scouleri var. nudicaule]
                                             Hieracium orarium
                                             Hieracium ostreophyllum
                                                   [Hieracium fendleri subsp. ostreophyllum]
                                                   [Hieracium fendleri var. ostreophyllum]
                                             Hieracium oxyodon
                                             Hieracium pangoriense
                                             Hieracium parryi
                                             Hieracium pilosella
                                             Hieracium plicatum
                                             Hieracium porrigentiforme
                                             Hieracium prenanthoides
                                               Hieracium prenanthoides subsp. bupleurifolioides
                                                     [Hieracium bupleurifolioides]
                                             Hieracium pringlei
                                             Hieracium pulchellum
                                             Hieracium relicinum
                                             Hieracium rydbergii
                                             Hieracium sabaudum
                                             Hieracium scabrum
                                             Hieracium scouleri
                                                   [Hieracium albertinum]
                                                   [Hieracium cusickii]
                                                   [Hieracium scouleri var. albertinum]
                                                   [Hieracium scouleri var. griseum]
                                                   [Hieracium scouleri var. scouleri]
                                               Hieracium scouleri var. scouleri
                                             Hieracium sommerfeltii
                                             Hieracium sparsifolium
                                             Hieracium spectandum
                                                   [Hieracium conocerinthe]
                                             Hieracium subarctoum
                                                   [Hieracium praecipuiforme]
                                             Hieracium subconspersum
                                             Hieracium subpellucidum
                                             Hieracium substellatum
                                               Hieracium substellatum subsp. sublacteum
                                                     [Hieracium sublacteum]
                                             Hieracium tanylobum
                                             Hieracium traillii
                                             Hieracium triste
                                                   [Hieracium gracile var. alaskanum]
                                                   [Hieracium gracile var. detonsum]
                                                   [Hieracium gracile]
                                                   [Hieracium triste subsp. gracile]
                                             Hieracium umbellatum
                                               Hieracium umbellatum subsp. umbellatum
                                                     [Hieracium canadense var. fasciculatum]
                                                     [Hieracium canadense]
                                                     [Hieracium columbianum]
                                                     [Hieracium kalmii]
                                                     [Hieracium scabriusculum var. scabrum]
                                                     [Hieracium scabriusculum]
                                             Hieracium villosum
                                             Hieracium vulgatiforme
                                             Hieracium xanthostylum
                                     Hilliardiella
                                             Hilliardiella aristata
                                                   [Vernonia natalensis]
                                             Hilliardiella elaeagnoides
                                             Hilliardiella hirsuta
                                                   [Vernonia hirsuta]
                                             Hilliardiella oligocephala
                                             Hilliardiella sutherlandii
                                                   [Vernonia sutherlandii]
                                     Himalaiella
                                             Himalaiella deltoidea
                                     Hirpicium
                                             Hirpicium diffusum
                                             Hirpicium linearifolium
                                                   [Gazania linearifolia]
                                     Hispidella
                                             Hispidella hispanica
                                     Hofmeisteria
                                             Hofmeisteria crassifolia
                                             Hofmeisteria dissecta
                                             Hofmeisteria fasciculata
                                                   [Hofmeisteria fasciculata var. grayi]
                                                   [Hofmeisteria fasciculata var. pubescens]
                                                   [Hofmeisteria fasciculata var. xantii]
                                               Hofmeisteria fasciculata var. fasciculata
                                             Hofmeisteria filifolia
                                             Hofmeisteria gayleana
                                             Hofmeisteria sinaloensis
                                             Hofmeisteria standleyi
                                             Hofmeisteria urenifolia
                                                   [Fleischmannia urenifolia]
                                     Holocarpha
                                             Holocarpha heermannii
                                                   [Deinandra heermannii]
                                                   [Hemizonia heermannii]
                                                   [Hemizonia virgata var. heermannii]
                                             Holocarpha macradenia
                                                   [Hemizonia macradenia]
                                             Holocarpha obconica
                                                   [Hemizonia obconica]
                                                   [Hemizonia vernalis]
                                                   [Holocarpha obconica subsp. autumnalis]
                                                   [Holocarpha obconica subsp. obconica]
                                             Holocarpha virgata
                                                   [Deinandra virgata]
                                                   [Hemizonia virgata]
                                               Holocarpha virgata subsp. elongata
                                               Holocarpha virgata subsp. virgata
                                     Hologymne
                                     Holozonia
                                             Holozonia filipes
                                                   [Hemizonia filipes]
                                                   [Lagophylla filipes]
                                     Homogyne
                                             Homogyne alpina
                                     Homopappus
                                     Hoorebekia
                                             Hoorebekia carthamoides
                                             Hoorebekia curvata
                                     Hulsea
                                             Hulsea algida
                                                   [Hulsea caespitosa]
                                                   [Hulsea carnosa]
                                             Hulsea brevifolia
                                             Hulsea californica
                                             Hulsea heterochroma
                                             Hulsea mexicana
                                             Hulsea nana
                                                   [Hulsea larseni]
                                                   [Hulsea larsenii]
                                                   [Hulsea nana var. larseni]
                                                   [Hulsea nana var. larsenii]
                                             Hulsea vestita
                                               Hulsea vestita subsp. callicarpha
                                                     [Hulsea callicarpha]
                                                     [Hulsea vestita var. callicarpha]
                                               Hulsea vestita subsp. gabrielensis
                                               Hulsea vestita subsp. inyoensis
                                                     [Hulsea californica subsp. inyoensis]
                                                     [Hulsea inyoensis]
                                               Hulsea vestita subsp. parryi
                                                     [Hulsea parryi]
                                               Hulsea vestita subsp. pygmaea
                                                     [Hulsea vestita var. pygmaea]
                                               Hulsea vestita subsp. vestita
                                                     [Hulsea vestita var. vestita]
                                               Hulsea vestita var. vestita
                                     Humbertacalia
                                             Humbertacalia leucopappa
                                                   [Senecio leucopappus]
                                             Humbertacalia pyrifolia
                                                   [Senecio curvatus]
                                     Hyalis
                                             Hyalis argentea
                                     Hydropectis
                                             Hydropectis aquatica
                                                   [Pectis aquatica]
                                             Hydropectis stevensii
                                     Hymenatherum
                                     Hymenoclea
                                             Hymenoclea fasciculata
                                     Hymenolepis
                                             Hymenolepis crithmifolia
                                                   [Athanasia parviflora]
                                             Hymenolepis dentata
                                             Hymenolepis indivisa
                                             Hymenolepis parviflora
                                     Hymenonema
                                     Hymenopappus
                                             Hymenopappus artemisiifolius
                                             Hymenopappus biennis
                                             Hymenopappus filifolius
                                               Hymenopappus filifolius eriopodus
                                               Hymenopappus filifolius var. cinereus
                                                     [Hymenopappus arenosus]
                                                     [Hymenopappus cinereus]
                                               Hymenopappus filifolius var. eriopodus
                                                     [Hymenopappus eriopoda]
                                               Hymenopappus filifolius var. filifolius
                                               Hymenopappus filifolius var. idahoensis
                                               Hymenopappus filifolius var. lugens
                                                     [Hymenopappus lugens]
                                               Hymenopappus filifolius var. luteus
                                               Hymenopappus filifolius var. megacephalus
                                               Hymenopappus filifolius var. nanus
                                               Hymenopappus filifolius var. nudipes
                                               Hymenopappus filifolius var. parvulus
                                                     [Hymenopappus parvulus]
                                               Hymenopappus filifolius var. pauciflorus
                                                     [Hymenopappus pauciflorus]
                                               Hymenopappus filifolius var. polycephalus
                                                     [Hymenopappus polycephalus]
                                               Hymenopappus filifolius var. tomentosus
                                             Hymenopappus flavescens
                                               Hymenopappus flavescens var. canotomentosus
                                                     [Hymenopappus robustus]
                                               Hymenopappus flavescens var. flavescens
                                             Hymenopappus glandulosus
                                                   [Hymenothrix glandulosa]
                                             Hymenopappus mexicanus
                                             Hymenopappus nanus
                                             Hymenopappus newberryi
                                             Hymenopappus radiatus
                                             Hymenopappus scabiosaeus
                                               Hymenopappus scabiosaeus var. corymbosus
                                                     [Hymenopappus corymbosus]
                                             Hymenopappus tenuifolius
                                     Hymenostephium
                                             Hymenostephium cordatum
                                                   [Aspilia hispida]
                                                   [Hymenostephium microcephalum]
                                                   [Viguiera microcephala]
                                             Hymenostephium gracillimum
                                                   [Viguiera gracillima]
                                             Hymenostephium kingii
                                             Hymenostephium quitensis
                                                   [Viguiera quitensis]
                                             Hymenostephium serratum
                                                   [Montanoa serrata]
                                             Hymenostephium superaxillare
                                             Hymenostephium tenue
                                                   [Viguiera tenuis]
                                             Hymenostephium uniseriatum
                                     Hymenothrix
                                             Hymenothrix biternata
                                                   [Bahia biternata]
                                                   [Eriophyllum biternatum]
                                             Hymenothrix dissecta
                                                   [Amauria dissecta]
                                                   [Amauriopsis dissecta]
                                                   [Bahia chrysanthemoides]
                                                   [Bahia dissecta var. anisopappa]
                                                   [Bahia dissecta]
                                                   [Villanova dissecta]
                                             Hymenothrix glandulopubescens
                                                   [Bahia glandulosa]
                                             Hymenothrix loomisii
                                                   [Hutchinsonia hyalina]
                                             Hymenothrix palmeri
                                             Hymenothrix pedata
                                                   [Amauriopsis pedata]
                                                   [Bahia pedata]
                                             Hymenothrix wislizeni
                                             Hymenothrix wislizenii
                                             Hymenothrix wrightii
                                                   [Hymenopappus wrightii var. viscidulus]
                                                   [Hymenopappus wrightii]
                                                   [Trichymenia wrightii]
                                     Hymenoxys
                                             Hymenoxys ambigens
                                               Hymenoxys ambigens var. ambigens
                                               Hymenoxys ambigens var. floribunda
                                                     [Plummera floribunda]
                                             Hymenoxys anthemoides
                                                   [Actinella anthemoides]
                                             Hymenoxys bigelovii
                                             Hymenoxys brandegeei
                                             Hymenoxys cooperi
                                                   [Actinea canescens]
                                                   [Actinea cooperi]
                                                   [Actinella cooperi]
                                                   [Hymenoxys canescens]
                                                   [Hymenoxys cooperi var. canescens]
                                                   [Hymenoxys cooperi var. cooperi]
                                                   [Picradenia canescens]
                                                   [Picradenia cooperi]
                                             Hymenoxys grandiflora
                                                   [Rydbergia grandiflora]
                                                   [Tetraneuris grandiflora]
                                             Hymenoxys hoopesii
                                                   [Dugaldia hoopesii]
                                                   [Heleniastrum hoopesii]
                                                   [Helenium hoopesii]
                                             Hymenoxys insignis
                                                   [Actinella chrysanthemoides]
                                                   [Hymenoxys chrysanthemoides var. juxta]
                                                   [Hymenoxys chrysanthemoides]
                                             Hymenoxys integrifolia
                                                   [Dugaldia integrifolia]
                                                   [Helenium integrifolium]
                                             Hymenoxys jamesii
                                             Hymenoxys lemmonii
                                                   [Actinea lemmonii]
                                                   [Picradenia lemmonii]
                                             Hymenoxys odorata
                                                   [Actinea odorata]
                                                   [Actinella odorata]
                                                   [Hymenoxys multiflora]
                                                   [Picradenia odorata]
                                                   [Ptilepida odorata]
                                             Hymenoxys pinetorum
                                                   [Dugaldia pinetorum]
                                             Hymenoxys quinquesquamata
                                             Hymenoxys richardsonii
                                                   [Actinella richardsonii]
                                                   [Hymenoxys biennis]
                                                   [Hymenoxys canescens var. nevadensis]
                                                   [Hymenoxys richardsonii var. utahensis]
                                               Hymenoxys richardsonii var. floribunda
                                                     [Hymenoxys floribunda var. arizonica]
                                               Hymenoxys richardsonii var. richardsonii
                                             Hymenoxys rusbyi
                                             Hymenoxys subintegra
                                             Hymenoxys texana
                                     Hyoseris
                                     Hypochaeris
                                             Hypochaeris albiflora
                                                   [Hypochaeris microcephala var. albiflora]
                                             Hypochaeris chillensis
                                             Hypochaeris crepioides
                                             Hypochaeris glabra
                                                   [Hypochoeris glabra]
                                             Hypochaeris incana
                                                   [Hypochaeris coronopifolius]
                                             Hypochaeris laevigata
                                             Hypochaeris microcephala
                                             Hypochaeris radicata
                                                   [Hypochoeris radicata]
                                             Hypochaeris scorzonerae
                                               Hypochaeris scorzonerae var. glabrata
                                                     [Hypochaeris chrysantha]
                                             Hypochaeris sessiliflora
                                             Hypochaeris taraxacoides
                                     Hypochoeris
                                     Hysterionica
                                             Hysterionica bakeri
                                     Indocypraea
                                             Indocypraea montana
                                                   [Wollastonia montana]
                                     Inula
                                             Inula britannica
                                               Inula britannica subsp. britannica
                                                     [Aster undulatus]
                                             Inula crithmoides
                                             Inula germanica
                                             Inula glomerata
                                             Inula helenium
                                             Inula hirta
                                             Inula hookeri
                                             Inula klingii
                                             Inula mannii
                                             Inula montana
                                             Inula oculus-christi
                                             Inula salicina
                                             Inula verbascifolia
                                     Ionactis
                                             Ionactis alpina
                                                   [Aster scopulorum]
                                                   [Chrysopsis alpina]
                                                   [Diplopappus alpinus]
                                                   [Leucelene alpina]
                                             Ionactis caelestis
                                             Ionactis elegans
                                                   [Chaetopappa elegans]
                                             Ionactis linariifolia
                                                   [Aster linariifolius]
                                                   [Diplopappus linariifolius]
                                             Ionactis stenomeres
                                     Iostephane
                                             Iostephane heterophylla
                                             Iostephane madrensis
                                                   [Helianthella madrensis]
                                                   [Pionocarpus madrensis]
                                             Iostephane trilobata
                                                   [Gymnolomia scaposa]
                                     Ismelia
                                             Ismelia carinata
                                                   [Chrysanthemum carinatum]
                                     Isocarpha
                                             Isocarpha microcephala
                                             Isocarpha oppositifolia
                                               Isocarpha oppositifolia var. achyranthes
                                     Isocoma
                                             Isocoma acradenia
                                                   [Aster acradenius]
                                                   [Bigelovia acradenia]
                                                   [Bigelowia acradenia]
                                                   [Haplopappus acradenius]
                                               Isocoma acradenia subsp. acradenia
                                               Isocoma acradenia var. acradenia
                                                     [Haplopappus acradenius var. acradenius]
                                                     [Isocoma acradenia subsp. acradenia]
                                                     [Isocoma veneta var. acradenia]
                                               Isocoma acradenia var. bracteosa
                                                     [Haplopappus acradenius subsp. bracteosus]
                                                     [Haplopappus acradenius var. bracteosus]
                                                     [Isocoma bracteosa]
                                               Isocoma acradenia var. eremophila
                                                     [Haplopappus acradenius subsp. eremophilus]
                                                     [Haplopappus acradenius var. eremophilus]
                                                     [Isocoma acradenia subsp. eremophila]
                                                     [Isocoma eremophila]
                                             Isocoma arguta
                                                   [Haplopappus venetus subsp. argutus]
                                                   [Haplopappus venetus var. argutus]
                                                   [Isocoma veneta var. arguta]
                                             Isocoma azteca
                                             Isocoma coronopifolia
                                                   [Isocoma pedicellata]
                                             Isocoma drummondii
                                                   [Haplopappus drummondii]
                                                   [Linosyris drummondii]
                                             Isocoma hartwegii
                                                   [Bigelowia hartwegii]
                                             Isocoma menziesii
                                                   [Bigelovia menziesii]
                                                   [Bigelowia menziesii]
                                                   [Haplopappus menziesii]
                                                   [Haplopappus venetus subsp. oxyphyllus]
                                                   [Pyrrocoma menziesii]
                                               Isocoma menziesii var. decumbens
                                                     [Bigelowia furfuracea]
                                                     [Haplopappus venetus subsp. furfuraceus]
                                                     [Isocoma decumbens]
                                                     [Isocoma veneta var. decumbens]
                                               Isocoma menziesii var. diabolica
                                               Isocoma menziesii var. menziesii
                                                     [Haplopappus venetus subsp. furfuraceus]
                                                     [Isocoma menziesii subsp. menziesii]
                                                     [Isocoma menziesii subsp. oxyphylla]
                                                     [Isocoma oxyphylla]
                                               Isocoma menziesii var. sedoides
                                                     [Bigelovia veneta var. sedoides]
                                                     [Bigelowia veneta var. sedoides]
                                                     [Haplopappus venetus var. sedoides]
                                                     [Isocoma latifolia]
                                                     [Isocoma veneta var. sedoides]
                                               Isocoma menziesii var. tridentata
                                                     [Haplopappus venetus subsp. tridentatus]
                                               Isocoma menziesii var. vernonioides
                                                     [Bigelowia veneta var. decumbens]
                                                     [Haplopappus venetus subsp. vernonioides]
                                                     [Haplopappus venetus var. vernonioides]
                                                     [Isocoma leucanthemifolia]
                                                     [Isocoma veneta var. vernonioides]
                                                     [Isocoma vernonioides]
                                             Isocoma pluriflora
                                                   [Haplopappus heterophyllus]
                                                   [Haplopappus pluriflorus]
                                                   [Isocoma oxylepis]
                                                   [Isocoma wrightii]
                                                   [Linosyris pluriflora]
                                                   [Linosyris wrightii]
                                             Isocoma rusbyi
                                             Isocoma tenuisecta
                                                   [Haplopappus fruticosus]
                                                   [Haplopappus tenuisectus]
                                             Isocoma tomentosa
                                             Isocoma veneta
                                     Isostigma
                                             Isostigma peucedanifolium
                                     Iva
                                             Iva annua
                                                   [Iva ciliata]
                                             Iva asperifolia
                                               Iva asperifolia var. angustifolia
                                                     [Iva angustifolia]
                                             Iva axillaris
                                                   [Iva axillaris subsp. robustior]
                                                   [Iva axillaris var. robustior]
                                               Iva axillaris var. pubescens
                                             Iva frutescens
                                               Iva frutescens subsp. oraria
                                                     [Iva frutescens var. oraria]
                                                     [Iva oraria]
                                             Iva hayesiana
                                             Iva imbricata
                                             Iva microcephala
                                     Ixeridium
                                             Ixeridium beauverdianum
                                             Ixeridium dentatum
                                               Ixeridium dentatum subsp. dentatum
                                                     [Ixeris dentata]
                                             Ixeridium gracile
                                             Ixeridium laevigatum
                                     Ixeris
                                             Ixeris chinensis
                                             Ixeris repens
                                                   [Lactuca brachyrhyncha]
                                             Ixeris stolonifera
                                                   [Lactuca stolonifera]
                                     Ixodia
                                     Jacobaea
                                             Jacobaea abrotanifolia
                                             Jacobaea adonidifolia
                                             Jacobaea analoga
                                                   [Senecio analogus]
                                                   [Senecio laetus]
                                             Jacobaea auricula
                                                   [Senecio auricula]
                                             Jacobaea cannabifolia
                                                   [Senecio cannabifolius]
                                             Jacobaea erratica
                                             Jacobaea graciliflora
                                                   [Senecio graciliflorus]
                                             Jacobaea leucophylla
                                                   [Senecio incanus]
                                             Jacobaea maritima
                                               Jacobaea maritima subsp. bicolor
                                                     [Senecio bicolor]
                                               Jacobaea maritima subsp. maritima
                                                     [Senecio bicolor subsp. cineraria]
                                                     [Senecio cineraria]
                                             Jacobaea paludosa
                                               Jacobaea paludosa subsp. paludosa
                                                     [Senecio paludosus]
                                             Jacobaea pseudoarnica
                                                   [Senecio pseudoarnica]
                                     Jaegeria
                                             Jaegeria glabra
                                                   [Sabazia glabra]
                                             Jaegeria gracilis
                                                   [Jaegeria crassa]
                                             Jaegeria hirta
                                             Jaegeria macrocephala
                                             Jaegeria pedunculata
                                             Jaegeria purpurascens
                                             Jaegeria standleyi
                                     Jaliscoa
                                             Jaliscoa goldmanii
                                                   [Piptothrix aegiroides]
                                             Jaliscoa pringlei
                                                   [Jaliscoa pappifera]
                                     Jaumea
                                             Jaumea carnosa
                                                   [Coinogyne carnosa]
                                                   [Kleinia carnosa]
                                     Jefea
                                             Jefea brevifolia
                                                   [Zexmenia brevifolia]
                                             Jefea gnaphalioides
                                                   [Zexmenia gnaphalioides]
                                             Jefea lantanifolia
                                                   [Zexmenia lantanifolia]
                                             Jefea pringlei
                                     Jensia
                                             Jensia rammii
                                                   [Anisocarpus rammii]
                                                   [Madia rammii]
                                             Jensia yosemitana
                                                   [Anisocarpus yosemitana]
                                                   [Madia yosemitana]
                                     Jessea
                                             Jessea cooperi
                                             Jessea multivenia
                                     Jungia
                                             Jungia ferruginea
                                             Jungia mitis
                                             Jungia pringlei
                                     Jurinea
                                             Jurinea stoechadifolia
                                     Kalimeris
                                     Karvandarina
                                             Karvandarina aphylla
                                     Kaunia
                                             Kaunia longipetiolata
                                                   [Kaunia uber]
                                     Kemulariella
                                             Kemulariella caucasica
                                                   [Aster caucasicus]
                                     Kentrophyllum
                                     Kerneria
                                     Kingianthus
                                             Kingianthus paniculatus
                                             Kingianthus paradoxus
                                     Klasea
                                             Klasea radiata
                                     Kleinia
                                             Kleinia abyssinica
                                             Kleinia anteuphorbium
                                             Kleinia barbertonica
                                                   [Senecio barbertonicus]
                                             Kleinia deflersii
                                                   [Senecio deflersii]
                                             Kleinia grantii
                                             Kleinia gregorii
                                             Kleinia implexa
                                             Kleinia odora
                                             Kleinia pendula
                                             Kleinia petraea
                                                   [Notonia petraea]
                                                   [Senecio jacobsenii]
                                             Kleinia picticaulis
                                             Kleinia schwartzii
                                             Kleinia semperviva
                                     Koanophyllon
                                             Koanophyllon albicaule
                                                   [Eupatorium albicaule var. laxius]
                                                   [Eupatorium albicaule]
                                             Koanophyllon coulteri
                                             Koanophyllon galeottii
                                             Koanophyllon gracilicaule
                                                   [Eupatorium gracilicaule]
                                             Koanophyllon monanthum
                                                   [Eupatorium monanthum]
                                                   [Neohintonia monantha]
                                             Koanophyllon palmeri
                                                   [Eupatorium arborescens]
                                                   [Eupatorium palmeri var. palmeri]
                                                   [Eupatorium palmeri]
                                               Koanophyllon palmeri var. tonsa
                                                     [Eupatorium palmeri var. tonsum]
                                             Koanophyllon peninsulare
                                                   [Critonia peninsularis]
                                                   [Eupatorium peninsulare var. epipolimum]
                                                   [Eupatorium peninsulare var. peninsulare]
                                                   [Eupatorium peninsulare]
                                             Koanophyllon pittieri
                                                   [Eupatorium pittieri]
                                             Koanophyllon polyodon
                                             Koanophyllon ravenii
                                             Koanophyllon sinaloensis
                                                   [Eupatorium surutatoanum]
                                             Koanophyllon solidaginifolium
                                                   [Eupatorium solidaginifolium]
                                             Koanophyllon solidaginoides
                                                   [Eupatorium filicaule]
                                                   [Eupatorium solidaginoides]
                                             Koanophyllon tripartitum
                                             Koanophyllon villosum
                                     Krigia
                                             Krigia biflora
                                                   [Cynthia falcata]
                                                   [Krigia amplexicaulis]
                                             Krigia cespitosa
                                                   [Krigia oppositifolia]
                                                   [Serinia oppositifolia]
                                             Krigia dandelion
                                             Krigia montana
                                             Krigia occidentalis
                                             Krigia virginica
                                             Krigia wrightii
                                     Kyhosia
                                             Kyhosia bolanderi
                                                   [Anisocarpus bolanderi]
                                                   [Madia bolanderi]
                                     Kymapleura
                                     Kyrstenia
                                     Kyrsteniopsis
                                             Kyrsteniopsis cymulifera
                                             Kyrsteniopsis dibollii
                                                   [Critonia eriocarpa]
                                                   [Eupatorium dibollii]
                                                   [Eupatorium eriocarpum]
                                             Kyrsteniopsis iltisii
                                                   [Critonia iltisii]
                                                   [Eupatorium iltisii]
                                             Kyrsteniopsis nelsonii
                                                   [Eupatorium nelsonii]
                                             Kyrsteniopsis perpetiolata
                                                   [Pseudokyrsteniopsis perpetiolata]
                                     Lactuca
                                             Lactuca biennis
                                                   [Sonchus biennis]
                                             Lactuca brachyrrhyncha
                                             Lactuca calophylla
                                             Lactuca canadensis
                                                   [Lactuca canadensis var. obovata]
                                             Lactuca dentata
                                             Lactuca floridana
                                                   [Lactuca floridana var. villosa]
                                               Lactuca floridana var. floridana
                                             Lactuca glandulifera
                                             Lactuca graminifolia
                                               Lactuca graminifolia var. mexicana
                                             Lactuca hirsuta
                                             Lactuca indica
                                             Lactuca inermis
                                                   [Lactuca capensis]
                                                   [Lactuca kenyaensis]
                                                   [Lactuca leptocephala]
                                             Lactuca lasiorhiza
                                             Lactuca ludoviciana
                                                   [Galathenium ludovicianum]
                                                   [Sonchus ludovicianus]
                                             Lactuca perennis
                                             Lactuca piestocarpa
                                                   [Chondrilla scoparia]
                                             Lactuca quercina
                                               Lactuca quercina subsp. quercina
                                                     [Prenanthes altissima]
                                             Lactuca saligna
                                             Lactuca sativa
                                                   [Lactuca integrata]
                                                   [Lactuca scariola var. integrata]
                                             Lactuca serriola
                                                   [Lactuca scariola]
                                                   [Lactuca serriola f. integrifolia]
                                                   [Lactuca serriola var. integra]
                                                   [Lactuca serriola var. serriola]
                                             Lactuca sibirica
                                                   [Mulgedium sibiricum]
                                             Lactuca spicata
                                             Lactuca tatarica
                                                   [Mulgedium oblongifolium]
                                               Lactuca tatarica subsp. pulchella
                                                     [Lactuca oblongifolia]
                                                     [Lactuca pulchella]
                                                     [Lactuca tatarica var. pulchella]
                                                     [Mulgedium oblongifolium]
                                                     [Mulgedium pulchellum]
                                                     [Sonchus pulchellus]
                                               Lactuca tatarica subsp. tatarica
                                                     [Lactuca tatarica var. tatarica]
                                             Lactuca tenerrima
                                             Lactuca viminea
                                             Lactuca virosa
                                                   [Lactuca virosa subsp. cornigera]
                                     Laennecia
                                             Laennecia araneosa
                                             Laennecia chihuahuana
                                             Laennecia confusa
                                                   [Conyza confusa]
                                             Laennecia coulteri
                                                   [Conyza coulteri]
                                                   [Conyzella coulteri]
                                                   [Eschenbachia coulteri]
                                             Laennecia eriophylla
                                                   [Conyza eriophylla]
                                             Laennecia filaginoides
                                                   [Conyza filaginoides]
                                             Laennecia gnaphalioides
                                                   [Conyza gnaphalioides]
                                             Laennecia schiedeana
                                                   [Conyza schiedeana]
                                                   [Erigeron subdecurrens]
                                             Laennecia sophiifolia
                                                   [Conyza pulchella]
                                                   [Conyza sophiifolia]
                                             Laennecia spellenbergii
                                     Lagascea
                                             Lagascea angustifolia
                                             Lagascea aurea
                                             Lagascea decipiens
                                               Lagascea decipiens var. decipiens
                                               Lagascea decipiens var. glandulosa
                                                     [Lagascea glandulosa]
                                             Lagascea helianthifolia
                                                   [Lagascea helianthifolia var. adenocaulis]
                                               Lagascea helianthifolia var. helianthifolia
                                               Lagascea helianthifolia var. levior
                                             Lagascea heteropappus
                                             Lagascea mollis
                                             Lagascea rigida
                                               Lagascea rigida var. mocinniana
                                                     [Nocca pringlei]
                                     Laggera
                                             Laggera alata
                                                   [Blumea alata]
                                             Laggera brevipes
                                             Laggera crispata
                                                   [Laggera pterodonta]
                                             Laggera elatior
                                     Lagophylla
                                             Lagophylla diabolensis
                                             Lagophylla dichotoma
                                             Lagophylla glandulosa
                                                   [Lagophylla glandulosa subsp. glandulosa]
                                                   [Lagophylla glandulosa subsp. serrata]
                                             Lagophylla minor
                                                   [Lagophylla dichotoma subsp. minor]
                                             Lagophylla ramosissima
                                                   [Lagophylla congesta]
                                                   [Lagophylla ramosissima subsp. congesta]
                                                   [Lagophylla ramosissima subsp. ramosissima]
                                     Lancisia
                                     Laphamia
                                             Laphamia intricata
                                                   [Laphamia megalocephala subsp. intricata]
                                                   [Laphamia megalocephala var. intricata]
                                                   [Monothrix intricata]
                                                   [Perityle intricata]
                                                   [Perityle megalocephala var. intricata]
                                             Laphamia inyoensis
                                                   [Perityle inyoensis]
                                             Laphamia lindheimeri
                                             Laphamia lloydii
                                                   [Perityle lloydii]
                                             Laphamia megalocephala
                                                   [Monothrix megalocephala]
                                                   [Perityle megalocephala]
                                               Laphamia megalocephala var. megalocephala
                                                     [Perityle megalocephala var. megalocephala]
                                               Laphamia megalocephala var. oligophylla
                                                     [Perityle megalocephala var. oligophylla]
                                             Laphamia parryi
                                                   [Leptopharynx trisecta]
                                             Laphamia peninsularis
                                             Laphamia stansburyi
                                                   [Perityle stansburyi]
                                             Laphamia villosa
                                                   [Perityle villosa]
                                     Laphangium
                                     Lappa
                                     Lapsana
                                             Lapsana communis
                                     Lasianthaea
                                             Lasianthaea aurea
                                             Lasianthaea ceanothifolia
                                               Lasianthaea ceanothifolia var. ceanothifolia
                                               Lasianthaea ceanothifolia var. gracilis
                                               Lasianthaea ceanothifolia var. gradata
                                               Lasianthaea ceanothifolia var. verbenifolia
                                             Lasianthaea crocea
                                             Lasianthaea fruticosa
                                                   [Zexmenia purpusii]
                                               Lasianthaea fruticosa var. alamosana
                                                     [Zexmenia fruticosa]
                                               Lasianthaea fruticosa var. fasciculata
                                               Lasianthaea fruticosa var. fruticosa
                                               Lasianthaea fruticosa var. michoacana
                                               Lasianthaea fruticosa var. occidentalis
                                             Lasianthaea macrocephala
                                                   [Zexmenia mexiae]
                                             Lasianthaea palmeri
                                             Lasianthaea podocephala
                                                   [Verbesina podocephala]
                                                   [Zexmenia podocephala]
                                             Lasianthaea rosei
                                             Lasianthaea seemannii
                                             Lasianthaea squarrosa
                                                   [Zexmenia squarrosa]
                                             Lasianthaea zinnioides
                                     Lasiocephalus
                                             Lasiocephalus ovatus
                                                   [Culcitium ovatum]
                                     Lasiospermum
                                             Lasiospermum bipinnatum
                                     Lasthenia
                                             Lasthenia burkei
                                                   [Baeria burkei]
                                             Lasthenia californica
                                                   [Monolopia californica]
                                               Lasthenia californica subsp. bakeri
                                                     [Baeria bakeri]
                                                     [Baeria macrantha var. bakeri]
                                                     [Lasthenia macrantha subsp. bakeri]
                                                     [Lasthenia macrantha var. bakeri]
                                               Lasthenia californica subsp. californica
                                                     [Baeria chrysostoma subsp. hirsutula]
                                                     [Baeria chrysostoma]
                                                     [Baeria hirsutula]
                                                     [Baeria palmeri]
                                                     [Burrielia hirsuta]
                                                     [Burrielia parviflora]
                                                     [Lasthenia chrysostoma]
                                                     [Lasthenia glabrata var. californica]
                                                     [Lasthenia hirsutula]
                                               Lasthenia californica subsp. macrantha
                                                     [Baeria macrantha var. macrantha]
                                                     [Baeria macrantha var. pauciaristata]
                                                     [Baeria macrantha var. thalassophila]
                                                     [Baeria macrantha]
                                                     [Burrielia chrysostoma var. macrantha]
                                                     [Lasthenia macrantha subsp. macrantha]
                                                     [Lasthenia macrantha var. macrantha]
                                                     [Lasthenia macrantha]
                                             Lasthenia chrysantha
                                                   [Crockeria chrysantha]
                                             Lasthenia conjugens
                                                   [Baeria fremontii var. conjugens]
                                             Lasthenia coronaria
                                                   [Actinolepis mutica]
                                                   [Actinolepis tenella]
                                                   [Baeria aristata]
                                                   [Baeria californica]
                                                   [Baeria coronaria]
                                                   [Baeria parishii]
                                                   [Ptilomeris affinis]
                                                   [Ptilomeris coronaria]
                                                   [Ptilomeris mutica]
                                                   [Ptilomeris tenella]
                                             Lasthenia debilis
                                                   [Baeria debilis]
                                             Lasthenia ferrisiae
                                             Lasthenia fremontii
                                                   [Baeria fremontii var. heterochaeta]
                                                   [Baeria fremontii]
                                                   [Burrielia fremontii]
                                                   [Dichaeta fremontii]
                                             Lasthenia glaberrima
                                             Lasthenia glabrata
                                                   [Hologymne glabrata]
                                                   [Monolopia glabrata]
                                               Lasthenia glabrata subsp. coulteri
                                                     [Lasthenia glabrata var. coulteri]
                                               Lasthenia glabrata subsp. glabrata
                                                     [Lasthenia glabrata var. glabrata]
                                               Lasthenia glabrata var. glabrata
                                             Lasthenia gracilis
                                                   [Baeria chrysostoma subsp. gracilis]
                                                   [Baeria chrysostoma var. gracilis]
                                                   [Baeria gracilis]
                                                   [Burrielia gracilis]
                                             Lasthenia leptalea
                                                   [Baeria leptalea]
                                                   [Burrielia leptalea]
                                             Lasthenia maritima
                                                   [Baeria maritima]
                                                   [Baeria minor subsp. maritima]
                                                   [Burrielia maritima]
                                                   [Lasthenia minor subsp. maritima]
                                                   [Lasthenia minor var. maritima]
                                             Lasthenia microglossa
                                                   [Baeria microglossa]
                                                   [Burrielia microglossa]
                                             Lasthenia minima
                                             Lasthenia minor
                                                   [Baeria minor]
                                                   [Eriophyllum minus]
                                                   [Lasthenia minor subsp. minor]
                                                   [Lasthenia minor var. minor]
                                                   [Monolopia minor]
                                             Lasthenia ornduffii
                                                   [Lasthenia macrantha subsp. prisca]
                                             Lasthenia platycarpha
                                                   [Baeria carnosa]
                                                   [Baeria platycarpha]
                                                   [Burrielia platycarpha]
                                     Launaea
                                             Launaea arborescens
                                             Launaea cornuta
                                                   [Sonchus exauriculatus]
                                             Launaea fragilis
                                               Launaea fragilis subsp. fragilis
                                             Launaea intybacea
                                                   [Brachyramphus intybaceus]
                                                   [Lactuca intybacea]
                                             Launaea lanifera
                                             Launaea mucronata
                                               Launaea mucronata subsp. mucronata
                                                     [Zollikoferia mucronata]
                                             Launaea nudicaulis
                                                   [Zollikoferia nudicaulis]
                                             Launaea quercifolia
                                             Launaea rarifolia
                                             Launaea sarmentosa
                                             Launaea spinosa
                                     Layia
                                             Layia carnosa
                                                   [Blepharipappus carnosa]
                                                   [Madaroglossa carnosa]
                                             Layia chrysanthemoides
                                                   [Blepharipappus chrysanthemoides]
                                                   [Layia calliglossa]
                                                   [Layia chrysanthemoides subsp. chrysanthemoides]
                                                   [Layia chrysanthemoides subsp. maritima]
                                                   [Oxyura chrysanthemoides]
                                             Layia discoidea
                                             Layia erubescens
                                             Layia fremontii
                                                   [Blepharipappus fremontii]
                                                   [Calliachyris fremontii]
                                             Layia gaillardioides
                                                   [Blepharipappus gaillardioides]
                                                   [Tridax gaillardioides]
                                             Layia glandulosa
                                                   [Blepharipappus glandulosus]
                                                   [Eriopappus glandulosus]
                                                   [Layia douglasii]
                                                   [Layia glandulosa subsp. glandulosa]
                                                   [Layia glandulosa subsp. lutea]
                                                   [Layia glandulosa var. glandulosa]
                                                   [Layia hispida]
                                             Layia heterotricha
                                                   [Blepharipappus glandulosus var. heterotrichus]
                                                   [Blepharipappus heterotrichus]
                                                   [Layia glandulosa var. heterotricha]
                                                   [Layia graveolens]
                                                   [Layia heterotricha var. major]
                                                   [Madaroglossa heterotricha]
                                             Layia hieracioides
                                                   [Blepharipappus hieracioides]
                                                   [Layia paniculata]
                                                   [Madaroglossa hieracioides]
                                             Layia jonesii
                                                   [Blepharipappus jonesii]
                                                   [Callichroa jonesii]
                                             Layia leucopappa
                                             Layia munzii
                                             Layia pentachaeta
                                                   [Blepharipappus pentachaetus]
                                               Layia pentachaeta subsp. albida
                                               Layia pentachaeta subsp. pentachaeta
                                                     [Layia pentachaeta var. hansenii]
                                                     [Layia pentachaeta var. pentachaeta]
                                             Layia platyglossa
                                                   [Blepharipappus platyglossus]
                                                   [Callichroa platyglossa]
                                                   [Layia elegans]
                                                   [Layia platyglossa subsp. campestris]
                                                   [Layia platyglossa subsp. platyglossa]
                                                   [Layia ziegleri]
                                                   [Madaroglossa elegans]
                                                   [Madaroglossa hirsuta]
                                             Layia septentrionalis
                                     Lebetina
                                     Lecocarpus
                                             Lecocarpus lecocarpoides
                                             Lecocarpus leptolobus
                                                   [Acanthospermum brachyceratum]
                                                   [Acanthospermum leptolobum]
                                             Lecocarpus pinnatifidus
                                     Leibnitzia
                                             Leibnitzia lyrata
                                                   [Chaptalia alsophila]
                                                   [Chaptalia confinis]
                                                   [Chaptalia leucocephala]
                                                   [Chaptalia monticola]
                                                   [Leibnitzia seemannii]
                                             Leibnitzia occimadrensis
                                     Leiboldia
                                             Leiboldia serrata
                                                   [Vernonia arctioides]
                                     Lembertia
                                     Leontodon
                                             Leontodon asperrimus
                                             Leontodon crispus
                                               Leontodon crispus var. crispus
                                                     [Thrincia hirta]
                                             Leontodon hispidus
                                               Leontodon hispidus subsp. hastilis
                                             Leontodon incanus
                                             Leontodon longirostris
                                                   [Leontodon saxatilis subsp. longirostris]
                                                   [Leontodon taraxacoides subsp. longirostris]
                                             Leontodon montanus
                                             Leontodon muelleri
                                             Leontodon nudicaulis
                                             Leontodon saxatilis
                                                   [Hyoseris taraxacoides]
                                                   [Leontodon leysseri]
                                                   [Leontodon nudicaulis subsp. taraxacoides]
                                                   [Leontodon taraxacoides]
                                                   [Thrincia leysseri]
                                               Leontodon saxatilis subsp. longirostris
                                                     [Leontodon taraxacoides subsp. longirostris]
                                               Leontodon saxatilis subsp. saxatilis
                                                     [Hyoseris taraxacoides]
                                                     [Leontodon leysseri]
                                                     [Leontodon nudicaulis subsp. taraxacoides]
                                                     [Leontodon taraxacoides subsp. taraxacoides]
                                                     [Leontodon taraxacoides]
                                     Leontopodium
                                             Leontopodium himalayanum
                                             Leontopodium japonicum
                                             Leontopodium microphyllum
                                             Leontopodium nivale
                                               Leontopodium nivale subsp. alpinum
                                                     [Leontopodium alpinum]
                                             Leontopodium sinense
                                             Leontopodium stracheyi
                                     Lepachys
                                     Lepidanthus
                                     Lepidaploa
                                             Lepidaploa arborescens
                                                   [Vernonia arborescens]
                                             Lepidaploa argyropappa
                                                   [Vernonia argyropappa]
                                             Lepidaploa borinquensis
                                                   [Vernonia borinquensis]
                                             Lepidaploa canescens
                                                   [Vernonia canescens]
                                                   [Vernonia mollis]
                                                   [Vernonia purpusii]
                                             Lepidaploa ferreyrae
                                                   [Vernonia apurimacensis]
                                             Lepidaploa glabra
                                                   [Vernonia albicaulis]
                                             Lepidaploa paraensis
                                                   [Vernonia paraensis]
                                             Lepidaploa pluvialis
                                                   [Vernonia pluvialis]
                                             Lepidaploa polypleura
                                                   [Vernonia polypleura]
                                             Lepidaploa remotiflora
                                                   [Vernonia sessilifolia]
                                             Lepidaploa salzmannii
                                                   [Vernonia salzmannii]
                                             Lepidaploa sericea
                                                   [Vernonia sericea]
                                             Lepidaploa tenella
                                                   [Lepidaploa boquerona]
                                                   [Vernonia boquerona]
                                             Lepidaploa tortuosa
                                                   [Vernonia tortuosa]
                                             Lepidaploa uniflora
                                                   [Vernonia ctenophora]
                                     Lepidonia
                                             Lepidonia jonesii
                                                   [Vernonia jonesii]
                                             Lepidonia mexicana
                                                   [Vernonia mexicana]
                                             Lepidonia salvinae
                                                   [Vernonia salvinae]
                                     Lepidospartum
                                             Lepidospartum burgessii
                                             Lepidospartum latisquamum
                                             Lepidospartum squamatum
                                                   [Baccharis sarothroides var. pluricephala]
                                                   [Lepidospartum squamatum var. obtectum]
                                                   [Lepidospartum squamatum var. palmeri]
                                                   [Lepidospartum squamatum var. squamatum]
                                                   [Linosyris squamata]
                                                   [Senecio palmeri]
                                                   [Tetradymia squamata]
                                     Leptilon
                                     Leptinella
                                             Leptinella atrata
                                               Leptinella atrata subsp. atrata
                                                     [Cotula atrata]
                                             Leptinella plumosa
                                                   [Cotula plumosa]
                                             Leptinella pyrethrifolia
                                                   [Cotula pyrethrifolia]
                                             Leptinella scariosa
                                                   [Cotula scariosa]
                                     Leptocarpha
                                             Leptocarpha rivularis
                                     Leptorhynchos
                                             Leptorhynchos squamatus
                                     Leptoseris
                                     Leptostelma
                                             Leptostelma tweediei
                                                   [Leucopsis tweediei]
                                     Leptosyne
                                             Leptosyne bigelovii
                                                   [Coreopsis bigelovii]
                                                   [Coreopsis bigelowii]
                                                   [Pugiopappus bigelovii]
                                             Leptosyne californica
                                                   [Coreopsis californica subsp. californica]
                                                   [Coreopsis californica var. californica]
                                                   [Coreopsis californica]
                                             Leptosyne calliopsidea
                                                   [Agarista calliopsidea]
                                                   [Coreopsis calliopsidea]
                                             Leptosyne douglasii
                                                   [Coreopsis douglasii]
                                             Leptosyne gigantea
                                                   [Coreopsis gigantea]
                                             Leptosyne hamiltonii
                                                   [Coreopsis hamiltonii]
                                             Leptosyne maritima
                                                   [Coreopsis maritima]
                                                   [Tuckermannia maritima]
                                             Leptosyne stillmanii
                                                   [Coreopsis stillmanii]
                                                   [Coreopsis stillmannii]
                                     Lessingia
                                             Lessingia arachnoidea
                                                   [Lessingia hololeuca var. arachnoidea]
                                                   [Lessingia leptoclada var. arachnoidea]
                                                   [Lessingia micradenia var. arachnoidea]
                                             Lessingia germanorum
                                                   [Lessingia germanorum var. germanorum]
                                             Lessingia glandulifera
                                                   [Lessingia germanorum var. glandulifera]
                                                   [Lessingia germanorum var. lemmonii]
                                                   [Lessingia germanorum var. ramulosissima]
                                                   [Lessingia lemmoni]
                                                   [Lessingia lemmonii]
                                                   [Lessingia ramulosissima]
                                               Lessingia glandulifera var. glandulifera
                                                     [Lessingia germanorum var. glandulifera]
                                                     [Lessingia germanorum var. lemmonii]
                                                     [Lessingia lemmoni var. lemmoni]
                                                     [Lessingia lemmoni var. ramulosissima]
                                                     [Lessingia lemmonii var. lemmonii]
                                                     [Lessingia lemmonii var. ramulosissima]
                                               Lessingia glandulifera var. peirsonii
                                                     [Lessingia germanorum var. peirsonii]
                                                     [Lessingia lemmonii var. peirsonii]
                                               Lessingia glandulifera var. tomentosa
                                                     [Lessingia tomentosa]
                                             Lessingia hololeuca
                                                   [Lessingia bakeri]
                                                   [Lessingia imbricata]
                                                   [Lessingia leptoclada var. hololeuca]
                                             Lessingia leptoclada
                                                   [Lessingia leptoclada var. tenuis]
                                             Lessingia micradenia
                                                   [Lessingia ramulosa var. micradenia]
                                               Lessingia micradenia var. glabrata
                                                     [Lessingia ramulosa var. glabrata]
                                               Lessingia micradenia var. micradenia
                                             Lessingia nana
                                                   [Lessingia nana var. caulescens]
                                             Lessingia nemaclada
                                                   [Lessingia albiflora]
                                                   [Lessingia cymulosa]
                                                   [Lessingia glomerata]
                                                   [Lessingia mendocina]
                                                   [Lessingia nemaclada var. albiflora]
                                                   [Lessingia nemaclada var. mendocina]
                                                   [Lessingia nemaclada var. nemaclada]
                                                   [Lessingia paleacea]
                                             Lessingia pectinata
                                               Lessingia pectinata var. pectinata
                                                     [Lessingia germanorum var. pectinata]
                                                     [Lessingia glandulifera var. pectinata]
                                               Lessingia pectinata var. tenuipes
                                                     [Lessingia germanorum var. tenuipes]
                                                     [Lessingia germanorum var. vallicola]
                                             Lessingia ramulosa
                                                   [Lessingia adenophora]
                                                   [Lessingia bicolor]
                                                   [Lessingia leptoclada var. microcephala]
                                                   [Lessingia ramulosa var. adenophora]
                                                   [Lessingia ramulosa var. ramulosa]
                                             Lessingia tenuis
                                                   [Lessingia germanorum var. parvula]
                                                   [Lessingia germanorum var. tenuis]
                                                   [Lessingia heterochroma]
                                                   [Lessingia parvula]
                                                   [Lessingia ramulosa var. tenuis]
                                                   [Lessingia tenuis var. jaredii]
                                             Lessingia virgata
                                                   [Lessingia subspicata]
                                     Lessingianthus
                                             Lessingianthus ammophilus
                                                   [Vernonia ammophila]
                                             Lessingianthus asteriflorus
                                             Lessingianthus brevifolius
                                                   [Vernonia linosyrifolia]
                                             Lessingianthus caiapoensis
                                                   [Vernonia caiapoensis]
                                             Lessingianthus coriaceus
                                                   [Cacalia coriacea]
                                             Lessingianthus correntinus
                                                   [Vernonia correntina]
                                             Lessingianthus eitenii
                                                   [Vernonia eitenii]
                                             Lessingianthus glabratus
                                                   [Vernonia glabrata var. cuneifolia]
                                                   [Vernonia glabrata var. serrata]
                                                   [Vernonia glabrata]
                                             Lessingianthus polyphyllus
                                                   [Vernonia glabrata var. bracteata]
                                             Lessingianthus ramellae
                                                   [Vernonia sessilifolia var. auriculata]
                                             Lessingianthus soderstroemii
                                                   [Vernonia soderstromii]
                                             Lessingianthus souzae
                                                   [Vernonia souzae]
                                             Lessingianthus valenzuelae
                                                   [Vernonia valenzuelae]
                                     Leucacantha
                                     Leucactinia
                                             Leucactinia bracteata
                                                   [Pectis bracteata]
                                     Leucantha
                                     Leucanthemopsis
                                             Leucanthemopsis flaveola
                                             Leucanthemopsis pallida
                                             Leucanthemopsis pulverulenta
                                     Leucanthemum
                                             Leucanthemum ircutianum
                                               Leucanthemum ircutianum subsp. ircutianum
                                                     [Leucanthemum vulgare var. pinnatifidum]
                                             Leucanthemum lacustre
                                                   [Chrysanthemum lacustre]
                                             Leucanthemum maximum
                                                   [Chrysanthemum maximum]
                                                   [Leucanthemum vulgare subsp. maximum]
                                             Leucanthemum pachyphyllum
                                             Leucanthemum vulgare
                                                   [Chrysanthemum leucanthemum]
                                               Leucanthemum vulgare subsp. vulgare
                                                     [Chrysanthemum leucanthemum var. pinnatifidum]
                                                     [Chrysanthemum leucanthemum]
                                     Leucelene
                                     Leucheria
                                             Leucheria candidissima
                                             Leucheria cerberoana
                                             Leucheria runcinata
                                                   [Leucheria barrasiana]
                                             Leucheria viscida
                                     Leucochrysum
                                     Leucoglossum
                                     Leucophyta
                                     Leucopsis
                                     Leucoseris
                                     Leucosyris
                                             Leucosyris arida
                                                   [Arida arizonica]
                                                   [Machaeranthera ammophila]
                                                   [Machaeranthera arida]
                                                   [Machaeranthera coulteri var. arida]
                                             Leucosyris carnosa
                                                   [Arida carnosa]
                                                   [Aster carnosus]
                                                   [Aster intricatus]
                                                   [Bigelovia carnosa]
                                                   [Bigelowia carnosa]
                                                   [Bigelowia intricata]
                                                   [Linosyris carnosa]
                                                   [Machaeranthera carnosa var. intricata]
                                                   [Machaeranthera carnosa]
                                             Leucosyris coulteri
                                                   [Arida coulteri]
                                                   [Psilactis coulteri]
                                             Leucosyris crispa
                                                   [Arida crispa]
                                                   [Machaeranthera crispa]
                                                   [Psilactis crispa]
                                             Leucosyris parviflora
                                                   [Arida parviflora]
                                                   [Aster parvulus]
                                                   [Machaeranthera parviflora]
                                             Leucosyris riparia
                                                   [Arida riparia]
                                                   [Aster riparius]
                                                   [Machaeranthera riparia]
                                     Leysera
                                             Leysera leyseroides
                                             Leysera tenella
                                     Liabum
                                             Liabum acuminatum
                                             Liabum bourgeaui
                                             Liabum igniarium
                                             Liabum nudicaule
                                             Liabum polycephalum
                                             Liabum stipulatum
                                             Liabum wrightii
                                     Liatris
                                             Liatris acidota
                                             Liatris aspera
                                             Liatris chapmanii
                                                   [Lacinaria chapmanii var. longifolia]
                                                   [Lacinaria chapmanii]
                                             Liatris compacta
                                                   [Liatris squarrosa var. compacta]
                                             Liatris cylindracea
                                             Liatris cymosa
                                             Liatris elegans
                                             Liatris elegantula
                                                   [Liatris graminifolia var. elegantula]
                                             Liatris garberi
                                             Liatris gracilis
                                             Liatris graminifolia
                                             Liatris hirsuta
                                                   [Liatris squarrosa var. hirsuta]
                                             Liatris laevigata
                                             Liatris lancifolia
                                             Liatris ligulistylis
                                             Liatris microcephala
                                             Liatris ohlingerae
                                             Liatris patens
                                             Liatris pauciflora
                                               Liatris pauciflora var. secunda
                                                     [Liatris secunda]
                                             Liatris pilosa
                                                   [Liatris graminifolia var. lasia]
                                             Liatris punctata
                                                   [Liatris punctata var. nebraskana]
                                               Liatris punctata var. mucronata
                                                     [Liatris mucronata]
                                               Liatris punctata var. punctata
                                             Liatris pycnostachya
                                             Liatris scariosa
                                             Liatris spicata
                                               Liatris spicata var. glabrata
                                                     [Liatris squarrosa var. glabrata]
                                               Liatris spicata var. montana
                                               Liatris spicata var. spicata
                                             Liatris squarrosa
                                                   [Lacinaria squarrosa]
                                             Liatris squarrulosa
                                             Liatris tenuifolia
                                             Liatris virgata
                                                   [Liatris regimontis]
                                     Ligularia
                                             Ligularia caloxantha
                                             Ligularia chimiliensis
                                             Ligularia curvisquama
                                             Ligularia cyathiceps
                                             Ligularia dentata
                                             Ligularia duciformis
                                             Ligularia franchetiana
                                             Ligularia longihastata
                                             Ligularia phoenicochaeta
                                             Ligularia stenocephala
                                             Ligularia stenoglossa
                                             Ligularia tenuicaulis
                                             Ligularia veitchiana
                                             Ligularia yunnanensis
                                     Lindheimera
                                             Lindheimera texana
                                     Linosyris
                                     Lipoblepharis
                                             Lipoblepharis stenophylla
                                                   [Wedelia stenophylla]
                                     Lipochaeta
                                             Lipochaeta connata
                                               Lipochaeta connata subsp. acris
                                                     [Lipochaeta acris]
                                                     [Lipochaeta connata var. acris]
                                               Lipochaeta connata var. connata
                                             Lipochaeta heterophylla
                                             Lipochaeta lobata
                                               Lipochaeta lobata var. incisor
                                               Lipochaeta lobata var. lobata
                                             Lipochaeta rockii
                                                   [Lipochaeta lobata var. makenensis]
                                     Logfia
                                             Logfia arizonica
                                                   [Filago arizonica]
                                                   [Oglifa arizonica]
                                             Logfia arvensis
                                                   [Filago arvensis]
                                             Logfia depressa
                                                   [Filago depressa]
                                                   [Oglifa depressa]
                                             Logfia filaginoides
                                                   [Filago californica]
                                                   [Gnaphalium filaginoides]
                                                   [Logfia californica]
                                                   [Oglifa californica]
                                             Logfia gallica
                                                   [Filago gallica]
                                                   [Oglifa gallica]
                                             Logfia heterantha
                                                   [Filago heterantha]
                                             Logfia minima
                                                   [Filago minima]
                                     Lorandersonia
                                             Lorandersonia baileyi
                                                   [Chrysothamnus baileyi]
                                                   [Chrysothamnus pulchellus subsp. baileyi]
                                                   [Chrysothamnus pulchellus var. baileyi]
                                                   [Ericameria pulchella subsp. baileyi]
                                             Lorandersonia linifolia
                                                   [Chrysothamnus linifolius]
                                                   [Chrysothamnus viscidiflorus subsp. linifolius]
                                             Lorandersonia microcephala
                                                   [Haplopappus microcephalus]
                                             Lorandersonia pulchella
                                                   [Chrysothamnus pulchellus]
                                                   [Ericameria pulchella]
                                                   [Linosyris pulchella]
                                             Lorandersonia salicina
                                                   [Haplopappus salicinus]
                                             Lorandersonia spathulata
                                                   [Chrysothamnus spathulatus]
                                     Loricaria
                                             Loricaria ilinissae
                                             Loricaria thuyoides
                                     Loxothysanus
                                             Loxothysanus pedunculatus
                                             Loxothysanus sinuatus
                                                   [Loxothysanus filipes]
                                     Luina
                                             Luina hypoleuca
                                                   [Luina hypoleuca var. californica]
                                             Luina serpentina
                                     Lundellianthus
                                             Lundellianthus breedlovei
                                                   [Lasianthaea breedlovei]
                                             Lundellianthus guatemalensis
                                                   [Lasianthaea guatemalensis]
                                             Lundellianthus harrimanii
                                             Lundellianthus kingii
                                             Lundellianthus salvinii
                                                   [Lasianthaea salvinii]
                                     Lycapsus
                                             Lycapsus tenuifolius
                                     Lychnophora
                                             Lychnophora candelabrum
                                             Lychnophora pinaster
                                             Lychnophora regis
                                             Lychnophora sellowii
                                     Lygodesmia
                                             Lygodesmia grandiflora
                                               Lygodesmia grandiflora var. dianthopsis
                                                     [Lygodesmia dianthopsis]
                                               Lygodesmia grandiflora var. entrada
                                                     [Lygodesmia entrada]
                                               Lygodesmia grandiflora var. grandiflora
                                             Lygodesmia juncea
                                             Lygodesmia ramosissima
                                             Lygodesmia texana
                                     Lyonnetia
                                     Machaeranthera
                                             Machaeranthera coulteri
                                             Machaeranthera tagetina
                                             Machaeranthera tanacetifolia
                                                   [Aster tanacetifolius]
                                                   [Machaeranthera parthenium]
                                     Macrachaenium
                                             Macrachaenium gracile
                                     Macrocarphus
                                     Macroclinidium
                                     Macronema
                                     Macrorhynchus
                                             Macrorhynchus glaucus
                                             Macrorhynchus harfordii
                                     Macvaughiella
                                             Macvaughiella chiapensis
                                             Macvaughiella mexicana
                                             Macvaughiella standleyi
                                     Madaria
                                     Madariopsis
                                     Madaroglossa
                                             Madaroglossa angustifolia
                                     Madia
                                             Madia anomala
                                                   [Hemizonia anomala]
                                             Madia chilensis
                                                   [Madariopsis chilensis]
                                             Madia citrigracilis
                                             Madia citriodora
                                                   [Hemizonia citriodora]
                                             Madia elegans
                                                   [Hemizonia wheeleri]
                                                   [Madaria elegans var. depauperata]
                                                   [Madaria elegans]
                                                   [Madia elegans subsp. densifolia]
                                                   [Madia elegans subsp. elegans]
                                                   [Madia elegans subsp. vernalis]
                                                   [Madia elegans subsp. wheeleri]
                                                   [Madia elegans var. densifolia]
                                                   [Madia elegans var. elegans]
                                                   [Madia elegans var. hispida]
                                                   [Madia wheeleri]
                                             Madia exigua
                                                   [Harpaecarpus exiguus]
                                                   [Harpaecarpus madarioides]
                                                   [Madia filipes]
                                                   [Sclerocarpus exiguus]
                                             Madia glomerata
                                                   [Amida gracilis]
                                                   [Madia glomerata var. glomerata]
                                                   [Madia glomerata var. ramosa]
                                                   [Madia ramosa]
                                             Madia gracilis
                                                   [Madia dissitiflora]
                                                   [Madia gracilis subsp. collina]
                                                   [Madia gracilis subsp. gracilis]
                                                   [Madia gracilis subsp. pilosa]
                                                   [Madia sativa subsp. dissitiflora]
                                                   [Madorella dissitiflora]
                                                   [Sclerocarpus gracilis]
                                             Madia radiata
                                                   [Anisocarpus radiatus]
                                             Madia sativa
                                                   [Madia capitata]
                                                   [Madia sativa subsp. capitata]
                                                   [Madorella racemosa]
                                               Madia sativa subsp. sativa
                                             Madia subspicata
                                             Madia tenella
                                     Malacolepis
                                     Malacomeris
                                     Malacothrix
                                             Malacothrix californica
                                                   [Malacothrix californica var. californica]
                                             Malacothrix clevelandii
                                                   [Calais parryi]
                                                   [Crepis geisseana]
                                                   [Malacothrix clevelandi]
                                                   [Malacothrix senecioides]
                                             Malacothrix coulteri
                                                   [Malacolepis coulteri]
                                                   [Malacothrix coulteri var. cognata]
                                             Malacothrix fendleri
                                             Malacothrix floccifera
                                                   [Malacothrix obtusa]
                                                   [Malacothrix parviflora]
                                                   [Senecio floccifer]
                                                   [Senecio flocciferus]
                                             Malacothrix foliosa
                                                   [Malacothrix foliosa var. foliosa]
                                               Malacothrix foliosa subsp. crispifolia
                                               Malacothrix foliosa subsp. foliosa
                                                     [Malacothrix insularis]
                                               Malacothrix foliosa subsp. philbrickii
                                               Malacothrix foliosa subsp. polycephala
                                             Malacothrix glabrata
                                                   [Malacothrix californica var. glabrata]
                                             Malacothrix incana
                                                   [Malacomeris incanus]
                                                   [Malacothrix incana var. incana]
                                                   [Malacothrix incana var. succulenta]
                                                   [Malacothrix succulenta]
                                             Malacothrix indecora
                                                   [Malacothrix foliosa var. indecora]
                                             Malacothrix junakii
                                             Malacothrix phaeocarpa
                                             Malacothrix saxatilis
                                                   [Leucoseris saxatilis]
                                               Malacothrix saxatilis var. arachnoidea
                                                     [Malacothrix arachnoidea]
                                               Malacothrix saxatilis var. commutata
                                                     [Malacothrix commutata]
                                               Malacothrix saxatilis var. implicata
                                                     [Malacothrix implicata]
                                               Malacothrix saxatilis var. saxatilis
                                               Malacothrix saxatilis var. tenuifolia
                                                     [Leucoseris tenuifolia]
                                                     [Malacothrix altissima]
                                                     [Malacothrix saxatilis var. altissima]
                                                     [Malacothrix tenuifolia]
                                             Malacothrix similis
                                             Malacothrix sonchoides
                                                   [Leptoseris sonchoides]
                                             Malacothrix sonorae
                                             Malacothrix squalida
                                                   [Malacothrix foliosa var. squalida]
                                                   [Malacothrix insularis var. squalida]
                                             Malacothrix stebbinsii
                                                   [Malacothrix clevelandi var. stebbinsii]
                                                   [Malacothrix clevelandii var. stebbinsii]
                                             Malacothrix torreyi
                                                   [Malacothrix sonchoides var. torreyi]
                                             Malacothrix xanti
                                     Mallinoa
                                     Malperia
                                             Malperia tenuis
                                                   [Hofmeisteria tenuis]
                                     Mantisalca
                                             Mantisalca delestrei
                                             Mantisalca salmantica
                                                   [Centaurea salmantica]
                                                   [Microlonchus salmanticus]
                                     Mariana
                                               Digitalis mariana subsp. mariana
                                                     [Digitalis purpurea subsp. mariana]
                                     Marsea
                                     Marshallia
                                             Marshallia caespitosa
                                                   [Marshallia caespitosa var. signata]
                                             Marshallia graminifolia
                                               Marshallia graminifolia subsp. tenuifolia
                                                     [Marshallia tenuifolia]
                                             Marshallia grandiflora
                                             Marshallia obovata
                                                   [Marshallia obovata var. platyphylla]
                                     Maruta
                                     Matricaria
                                             Matricaria ambigua
                                             Matricaria aurea
                                             Matricaria chamomilla
                                                   [Chamomilla chamomilla]
                                                   [Chamomilla recutita]
                                                   [Chrysanthemum chamomilla]
                                                   [Matricaria recutita]
                                             Matricaria discoidea
                                                   [Akylopsis suaveolens]
                                                   [Chamomilla discoidea]
                                                   [Chamomilla suaveolens]
                                                   [Chrysanthemum suaveolens]
                                                   [Lepidanthus suaveolens]
                                                   [Matricaria suaveolens]
                                                   [Santolina suaveolens]
                                                   [Tanacetum suaveolens]
                                             Matricaria matricarioides
                                                   [Artemisia matricarioides]
                                                   [Cotula matricarioides]
                                             Matricaria occidentalis
                                                   [Chamomilla occidentalis]
                                     Mauchia
                                     Mauranthemum
                                             Mauranthemum paludosum
                                                   [Chrysanthemum paludosum]
                                                   [Leucanthemum paludosum]
                                                   [Leucoglossum paludosum]
                                               Mauranthemum paludosum subsp. paludosum
                                     Medranoa
                                             Medranoa palmeri
                                                   [Ericameria austrotexana]
                                                   [Neonesomia palmeri]
                                                   [Xylothamia palmeri]
                                             Medranoa parrasana
                                                   [Ericameria parrasana]
                                                   [Haplopappus parrasanus]
                                                   [Xylothamia parrasana]
                                             Medranoa pseudobaccharis
                                                   [Xylothamia pseudobaccharis]
                                             Medranoa purpusii
                                                   [Ericameria purpusii]
                                     Megalodonta
                                     Melampodium
                                             Melampodium americanum
                                             Melampodium appendiculatum
                                             Melampodium arenicola
                                             Melampodium aureum
                                             Melampodium bibracteatum
                                             Melampodium cinereum
                                                   [Melampodium cinereum var. hirtellum]
                                                   [Melampodium cinereum var. ramosissimum]
                                               Melampodium cinereum var. cinereum
                                             Melampodium cupulatum
                                             Melampodium dicoelocarpum
                                             Melampodium diffusum
                                             Melampodium divaricatum
                                             Melampodium glabrum
                                             Melampodium gracile
                                             Melampodium leucanthum
                                             Melampodium linearilobum
                                                   [Melampodium canescens]
                                             Melampodium longicorne
                                             Melampodium longifolium
                                             Melampodium longipilum
                                             Melampodium microcephalum
                                             Melampodium montanum
                                                   [Melampodium montanum var. viridulum]
                                             Melampodium nayaritense
                                             Melampodium nutans
                                             Melampodium paniculatum
                                             Melampodium parvulum
                                             Melampodium perfoliatum
                                                   [Alcina perfoliata]
                                             Melampodium pilosum
                                             Melampodium repens
                                                   [Melampodium arvense]
                                             Melampodium rosei
                                             Melampodium sericeum
                                                   [Melampodium hispidum]
                                             Melampodium sinaloense
                                             Melampodium sinuatum
                                             Melampodium strigosum
                                             Melampodium tenellum
                                             Melampodium tepicense
                                     Melanoseris
                                             Melanoseris atropurpurea
                                                   [Chaetoseris grandiflora]
                                             Melanoseris cyanea
                                                   [Chaetoseris hastata]
                                             Melanoseris graciliflora
                                                   [Stenoseris graciliflora]
                                     Melanthera
                                             Melanthera angustifolia
                                             Melanthera aspera
                                             Melanthera nivea
                                                   [Melanthera deltoidea]
                                                   [Melanthera hastata]
                                             Melanthera parvifolia
                                                   [Melanthera radiata]
                                     Mesoligus
                                     Metalasia
                                             Metalasia agathosmoides
                                             Metalasia aurea
                                             Metalasia bodkinii
                                             Metalasia brevifolia
                                             Metalasia cephalotes
                                             Metalasia erubescens
                                             Metalasia massonii
                                                   [Metalasia langebergensis]
                                             Metalasia muricata
                                             Metalasia pallida
                                             Metalasia pulcherrima
                                             Metalasia tenuifolia
                                     Mexerion
                                             Mexerion mexicanum
                                             Mexerion sarmentosum
                                                   [Gnaphalium sarmentosum]
                                     Mexianthus
                                             Mexianthus mexicanus
                                     Microbahia
                                     Microglossa
                                             Microglossa afzelii
                                             Microglossa densiflora
                                             Microglossa mespilifolia
                                             Microglossa pyrifolia
                                             Microglossa pyrrhopappa
                                     Microlonchus
                                     Micropus
                                             Micropus amphibolus
                                                   [Gnaphalodes amphibola]
                                                   [Stylocline amphibola]
                                             Micropus californicus
                                                   [Bombycilaena californica]
                                                   [Gnaphalodes californica]
                                               Micropus californicus var. californicus
                                               Micropus californicus var. subvestitus
                                             Micropus erectus
                                     Microseris
                                             Microseris acuminata
                                             Microseris aphantocarpha
                                             Microseris bigelovii
                                                   [Calais bigelovii]
                                             Microseris borealis
                                                   [Apargia borealis]
                                                   [Apargidium boreale]
                                                   [Leontodon borealis]
                                                   [Scorzonella borealis]
                                             Microseris callicarpha
                                             Microseris campestris
                                             Microseris cuspidata
                                                   [Nothocalais cuspidata]
                                             Microseris douglasii
                                                   [Calais douglasii]
                                               Microseris douglasii subsp. douglasii
                                                     [Calais cyclocarpha]
                                                     [Calais eriocarpha]
                                                     [Calais kelloggii]
                                                     [Microseris attenuata]
                                                     [Microseris douglasii var. douglasii]
                                                     [Microseris leucocarpha]
                                                     [Microseris parishii]
                                                     [Microseris parvula]
                                                     [Microseris proxima]
                                               Microseris douglasii subsp. platycarpha
                                                     [Calais platycarpha]
                                                     [Microseris douglasii var. platycarpha]
                                                     [Microseris platycarpha]
                                               Microseris douglasii subsp. tenella
                                                     [Calais aphantocarpha]
                                                     [Calais tenella]
                                                     [Microseris douglasii var. tenella]
                                                     [Microseris indivisa]
                                                     [Microseris tenella var. aphantocarpha]
                                                     [Microseris tenella]
                                             Microseris elegans
                                                   [Microseris aphantocarpha var. elegans]
                                                   [Microseris aphantocarpha var. mariposana]
                                             Microseris howellii
                                                   [Scorzonella howellii]
                                             Microseris laciniata
                                                   [Calais laciniata]
                                                   [Hymenonema laciniatum]
                                                   [Scorzonella laciniata]
                                               Microseris laciniata subsp. detlingii
                                               Microseris laciniata subsp. laciniata
                                                     [Calais glauca var. procera]
                                                     [Calais glauca]
                                                     [Microseris laciniata var. laciniata]
                                                     [Scorzonella arguta]
                                                     [Scorzonella megacephala]
                                                     [Scorzonella pratensis]
                                                     [Scorzonella procera]
                                               Microseris laciniata subsp. leptosepala
                                                     [Calais bolanderi]
                                                     [Microseris bolanderi]
                                                     [Microseris leptosepala]
                                                     [Scorzonella glauca]
                                               Microseris laciniata subsp. siskiyouensis
                                                     [Microseris laciniata var. siskiyouensis]
                                             Microseris nigrescens
                                                   [Nothocalais nigrescens]
                                             Microseris nutans
                                                   [Calais nutans]
                                                   [Crepis nutans]
                                                   [Ptilocalais nutans]
                                                   [Ptilophora nutans]
                                                   [Scorzonella nutans var. laciniata]
                                                   [Scorzonella nutans]
                                             Microseris oligantha
                                             Microseris paludosa
                                                   [Scorzonella paludosa var. integrifolia]
                                                   [Scorzonella paludosa]
                                             Microseris sylvatica
                                                   [Calais sylvatica]
                                                   [Scorzonella lepidota]
                                                   [Scorzonella montana]
                                                   [Scorzonella sylvatica]
                                     Microspermum
                                             Microspermum debile
                                                   [Microspermum debile var. arsenei]
                                               Microspermum debile var. debile
                                             Microspermum flaccidum
                                             Microspermum gonzalezii
                                             Microspermum gracillimum
                                             Microspermum hintonii
                                             Microspermum michoacanum
                                                   [Piqueriopsis michoacana]
                                             Microspermum nummulariifolium
                                             Microspermum tenue
                                     Mikania
                                           [Pericalia]
                                             Mikania amara
                                             Mikania amblyolepis
                                             Mikania banisteriae
                                                   [Mikania antioquiensis var. subcuneata]
                                                   [Mikania antioquiensis]
                                             Mikania bulbisetifera
                                             Mikania chenopodifolia
                                                   [Mikania capensis]
                                             Mikania citriodora
                                             Mikania congesta
                                             Mikania cordata
                                             Mikania cordifolia
                                             Mikania decora
                                                   [Mikania melastomacea]
                                             Mikania fragilis
                                             Mikania fulva
                                                   [Mikania hassleriana f. cuneifolia]
                                                   [Mikania hassleriana]
                                             Mikania globosa
                                             Mikania gonzalezii
                                             Mikania guaco
                                                   [Mikania napensis]
                                             Mikania hookeriana
                                                   [Mikania vitrea]
                                             Mikania houstoniana
                                             Mikania iodotricha
                                             Mikania leiostachya
                                             Mikania megalophylla
                                             Mikania mendocina
                                             Mikania micrantha
                                                   [Mikania batatifolia]
                                             Mikania natalensis
                                             Mikania parviflora
                                                   [Eupatorium parviflorum]
                                             Mikania periplocifolia
                                             Mikania porosa
                                             Mikania psilostachya
                                             Mikania pterocaula
                                             Mikania pyramidata
                                                   [Mikania eriophora]
                                             Mikania rimachii
                                             Mikania rufa
                                             Mikania scandens
                                             Mikania swartziana
                                             Mikania sylvatica
                                             Mikania tonduzii
                                             Mikania vitifolia
                                     Milleria
                                             Milleria quinqueflora
                                                   [Milleria peruviana]
                                     Minuria
                                             Minuria cunninghamii
                                             Minuria integerrima
                                             Minuria leptophylla
                                     Mniodes
                                             Mniodes coarctata
                                     Monolopia
                                             Monolopia congdonii
                                                   [Eatonella congdonii]
                                                   [Lembertia congdoni]
                                                   [Lembertia congdonii]
                                             Monolopia gracilens
                                                   [Monolopia major var. gracilens]
                                             Monolopia lanceolata
                                                   [Monolopia major var. lanceolata]
                                             Monolopia major
                                             Monolopia stricta
                                     Monoptilon
                                             Monoptilon bellidiforme
                                             Monoptilon bellioides
                                                   [Eremiastrum bellioides]
                                                   [Eremiastrum orcuttii]
                                     Monosis
                                             Monosis volkameriifolia
                                                   [Vernonia volkameriifolia]
                                     Monothrix
                                     Montanoa
                                             Montanoa andersonii
                                             Montanoa atriplicifolia
                                                   [Montanoa schottii]
                                             Montanoa bipinnatifida
                                                   [Montanoa pyramidata]
                                             Montanoa echinacea
                                             Montanoa frutescens
                                             Montanoa gigas
                                             Montanoa grandiflora
                                             Montanoa guatemalensis
                                             Montanoa hexagona
                                             Montanoa hibiscifolia
                                             Montanoa karwinskii
                                             Montanoa laskowskii
                                             Montanoa leucantha
                                               Montanoa leucantha subsp. arborescens
                                                     [Montanoa arborescens]
                                                     [Montanoa leucantha var. arborescens]
                                                     [Montanoa patens]
                                                     [Montanoa uncinata]
                                                     [Polymnia nervata]
                                               Montanoa leucantha subsp. leucantha
                                                     [Montanoa purpurascens]
                                               Montanoa leucantha var. leucantha
                                             Montanoa mollissima
                                             Montanoa pteropoda
                                             Montanoa quadrangularis
                                             Montanoa revealii
                                             Montanoa speciosa
                                             Montanoa tomentosa
                                               Montanoa tomentosa subsp. rosei
                                                     [Montanoa rosei]
                                               Montanoa tomentosa subsp. tomentosa
                                               Montanoa tomentosa subsp. xanthiifolia
                                                     [Montanoa myriocephala]
                                                     [Montanoa seleriana]
                                     Monticalia
                                             Monticalia andicola
                                                   [Pentacalia andicola]
                                             Monticalia peruviana
                                             Monticalia rosmarinifolia
                                                   [Senecio romeroides]
                                             Monticalia vaccinioides
                                     Moquiniastrum
                                             Moquiniastrum hatschbachii
                                                   [Gochnatia hatschbachii]
                                     Moscharia
                                             Moscharia pinnatifida
                                             Moscharia solbrigii
                                     Mulgedium
                                     Munnozia
                                             Munnozia hastifolia
                                             Munnozia liaboides
                                             Munnozia senecionidis
                                             Munnozia wilburii
                                     Munzothamnus
                                             Munzothamnus blairii
                                                   [Malacothrix blairii]
                                                   [Stephanomeria blairii]
                                     Mutisia
                                             Mutisia acuminata
                                             Mutisia decurrens
                                             Mutisia grandiflora
                                             Mutisia ilicifolia
                                             Mutisia latifolia
                                             Mutisia mathewsii
                                                   [Mutisia weberbaueri]
                                               Mutisia mathewsii var. anomala
                                             Mutisia microphylla
                                             Mutisia oligodon
                                             Mutisia rosea
                                                   [Mutisia berteroana]
                                             Mutisia sinuata
                                             Mutisia spinosa
                                             Mutisia subulata
                              Mutisioideae
                                     Mycelis
                                             Mycelis muralis
                                                   [Cicerbita muralis]
                                                   [Lactuca muralis]
                                     Myriactis
                                             Myriactis mindanaensis
                                             Myriactis nepalensis
                                             Myriactis wallichii
                                             Myriactis wightii
                                     Nabalus
                                             Nabalus alatus
                                                   [Nabalus hastatus]
                                                   [Prenanthes alata]
                                             Nabalus albus
                                                   [Prenanthes alba]
                                             Nabalus asper
                                                   [Prenanthes aspera]
                                             Nabalus autumnalis
                                                   [Prenanthes virgata]
                                             Nabalus racemosus
                                                   [Prenanthes racemosa]
                                             Nabalus sagittatus
                                             Nabalus serpentarius
                                                   [Prenanthes crepidinea]
                                                   [Prenanthes serpentaria]
                                             Nabalus trifoliolatus
                                                   [Prenanthes trifoliolata]
                                               Nabalus trifoliolatus var. nanus
                                                     [Prenanthes nana]
                                     Nahuatlea
                                             Nahuatlea arborescens
                                                   [Gochnatia arborescens]
                                             Nahuatlea hypoleuca
                                                   [Gochnatia hypoleuca]
                                             Nahuatlea obtusata
                                                   [Gochnatia obtusata]
                                             Nahuatlea purpusii
                                                   [Gochnatia purpusii]
                                     Nardophyllum
                                             Nardophyllum armatum
                                                   [Ocyroe armata]
                                             Nardophyllum bryoides
                                                   [Nardophyllum obtusifolium]
                                             Nardophyllum deserticola
                                                   [Aylacophora deserticola]
                                     Nassauvia
                                             Nassauvia abbreviata
                                             Nassauvia ameghinoi
                                             Nassauvia darwinii
                                             Nassauvia dentata
                                             Nassauvia glomerulosa
                                     Neblinaea
                                             Neblinaea promontoriorum
                                     Nelsonianthus
                                             Nelsonianthus epiphyticus
                                                   [Senecio armentalis]
                                     Nemoseris
                                     Neocabreria
                                             Neocabreria mexiae
                                     Neoceis
                                     Neohintonia
                                     Neomirandea
                                             Neomirandea allenii
                                             Neomirandea angularis
                                             Neomirandea araliifolia
                                                   [Eupatorium altiscandens]
                                             Neomirandea homogama
                                             Neomirandea ovandensis
                                             Neomirandea parasitica
                                     Neomolina
                                     Neonesomia
                                     Nestotus
                                             Nestotus macleanii
                                             Nestotus stenophyllus
                                                   [Aster stenophyllus]
                                                   [Haplopappus stenophyllus]
                                                   [Hoorebekia stenophylla]
                                                   [Stenotus stenophyllus]
                                     Neurolaena
                                             Neurolaena cobanensis
                                             Neurolaena lobata
                                                   [Neurolaena fulva]
                                                   [Pluchea symphytifolia]
                                             Neurolaena macrophylla
                                             Neurolaena oaxacana
                                             Neurolaena venturana
                                     Nicolletia
                                             Nicolletia edwardsii
                                             Nicolletia occidentalis
                                             Nicolletia trifida
                                     Nidorella
                                             Nidorella aegyptiaca
                                                   [Conyza aegyptiaca]
                                             Nidorella anomala
                                             Nidorella attenuata
                                             Nidorella auriculata
                                             Nidorella elliotii
                                             Nidorella foetida
                                             Nidorella hottentotica
                                             Nidorella ivifolia
                                                   [Conyza scabrida]
                                             Nidorella linifolia
                                             Nidorella microcephala
                                             Nidorella pinnata
                                                   [Conyza pinnata]
                                             Nidorella podocephala
                                                   [Conyza podocephala]
                                             Nidorella resedifolia
                                               Nidorella resedifolia subsp. resedifolia
                                             Nidorella spartioides
                                             Nidorella undulata
                                     Nocca
                                     Nordenstamia
                                             Nordenstamia tuestae
                                                   [Gynoxys tuestae]
                                     Nothocalais
                                             Nothocalais alpestris
                                                   [Agoseris alpestris]
                                                   [Microseris alpestris]
                                                   [Troximon alpestre]
                                             Nothocalais troximoides
                                                   [Microseris troximoides]
                                                   [Nothocalais suksdorfii]
                                                   [Scorzonella troximoides]
                                     Noticastrum
                                             Noticastrum adscendens
                                                   [Aster adscendens]
                                     Notopappus
                                             Notopappus ameghinoi
                                                   [Haplopappus ameghinoi]
                                             Notopappus pectinatus
                                                   [Haplopappus pectinatus]
                                     Notoptera
                                     Notoseris
                                             Notoseris scandens
                                                   [Prenanthes scandens]
                                             Notoseris yakoensis
                                     Oclemena
                                             Oclemena acuminata
                                                   [Aster acuminatus]
                                             Oclemena reticulata
                                     Odontotrichum
                                     Oedera
                                             Oedera capensis
                                             Oedera corymbosa
                                             Oedera genistifolia
                                             Oedera humilis
                                             Oedera longipes
                                                   [Leysera longipes]
                                             Oedera squarrosa
                                             Oedera uniflora
                                             Oedera virgata
                                                   [Comborhiza virgata]
                                     Oglifa
                                     Oldenburgia
                                             Oldenburgia grandis
                                                   [Oldenburgia arbuscula]
                                             Oldenburgia paradoxa
                                     Olearia
                                             Olearia albida
                                             Olearia algida
                                             Olearia angulata
                                             Olearia arborescens
                                             Olearia argophylla
                                             Olearia axillaris
                                             Olearia ballii
                                             Olearia brachyphylla
                                             Olearia canescens
                                             Olearia cheesemanii
                                             Olearia erubescens
                                                   [Olearia myrsinoides var. erubescens]
                                             Olearia exiguifolia
                                             Olearia furfuracea
                                             Olearia glandulosa
                                             Olearia gravis
                                             Olearia haastii
                                             Olearia heterocarpa
                                             Olearia hygrophila
                                             Olearia ilicifolia
                                             Olearia lepidophylla
                                             Olearia lyrata
                                             Olearia macrodonta
                                             Olearia muricata
                                             Olearia myrsinoides
                                             Olearia nummularifolia
                                             Olearia odorata
                                             Olearia paniculata
                                             Olearia pannosa
                                             Olearia passerinoides
                                             Olearia paucidentata
                                             Olearia phlogopappa
                                             Olearia pinifolia
                                             Olearia ramulosa
                                             Olearia revoluta
                                             Olearia stellulata
                                             Olearia thomsonii
                                             Olearia traversiorum
                                                   [Olearia traversii]
                                             Olearia virgata
                                             Olearia viscosa
                                     Oligactis
                                     Oligoneuron
                                     Olivaea
                                     Omalotes
                                     Omalotheca
                                             Omalotheca hoppeana
                                               Omalotheca hoppeana subsp. hoppeana
                                                     [Gnaphalium hoppeanum]
                                                     [Gnaphalium supinum]
                                             Omalotheca norvegica
                                                   [Gnaphalium norvegicum]
                                             Omalotheca sylvatica
                                                   [Gnaphalium sylvaticum]
                                     Oncosiphon
                                             Oncosiphon grandiflorus
                                             Oncosiphon pilulifer
                                                   [Cotula globifera]
                                                   [Cotula pilulifer]
                                                   [Cotula pilulifera]
                                                   [Matricaria globifera]
                                                   [Matricaria pilulifera]
                                                   [Oncosiphon piluliferum]
                                                   [Pentzia globifera]
                                             Oncosiphon piluliferum
                                                   [Cotula globifera]
                                                   [Cotula pilulifera]
                                                   [Matricaria globifera]
                                                   [Matricaria pilulifera]
                                                   [Pentzia globifera]
                                             Oncosiphon suffruticosum
                                             Oncosiphon suffruticosus
                                     Onopordum
                                             Onopordum acanthium
                                               Onopordum acanthium subsp. acanthium
                                             Onopordum acaulon
                                             Onopordum arenarium
                                             Onopordum dissectum
                                             Onopordum illyricum
                                             Onopordum macracanthum
                                             Onopordum tauricum
                                     Onoseris
                                             Onoseris albicans
                                             Onoseris donnell-smithii
                                                   [Pereziopsis donnell-smithii]
                                             Onoseris gnaphalioides
                                             Onoseris hyssopifolia
                                             Onoseris onoseroides
                                     Oonopsis
                                             Oonopsis engelmannii
                                             Oonopsis foliosa
                                                   [Haplopappus fremontii]
                                               Oonopsis foliosa var. monocephala
                                                     [Oonopsis monocephala]
                                             Oonopsis multicaulis
                                                   [Haplopappus multicaulis]
                                                   [Oonopsis argillacea]
                                             Oonopsis wardii
                                     Ophryosporus
                                             Ophryosporus galioides
                                             Ophryosporus paradoxus
                                             Ophryosporus peruvianus
                                             Ophryosporus triangularis
                                     Oreastrum
                                     Oreochrysum
                                             Oreochrysum parryi
                                                   [Haplopappus parryi]
                                                   [Solidago parryi]
                                     Oreostemma
                                             Oreostemma alpigenum
                                                   [Aster alpigenus]
                                                   [Oreostemma alpigenum subsp. andersonii]
                                               Oreostemma alpigenum var. alpigenum
                                               Oreostemma alpigenum var. andersonii
                                                     [Aster alpigenus subsp. andersonii]
                                                     [Aster alpigenus var. andersonii]
                                                     [Erigeron andersonii]
                                                     [Oreostemma alpigenum subsp. andersonii]
                                               Oreostemma alpigenum var. haydenii
                                                     [Oreostemma alpigenum subsp. haydenii]
                                             Oreostemma elatum
                                                   [Aster elatus]
                                                   [Oreastrum elatum]
                                             Oreostemma peirsonii
                                                   [Aster peirsonii]
                                     Oritrophium
                                             Oritrophium aciculifolium
                                             Oritrophium blepharophyllum
                                                   [Erigeron blepharophyllus]
                                             Oritrophium limnophilum
                                               Oritrophium limnophilum subsp. limnophilum
                                                     [Erigeron frigidum]
                                             Oritrophium nevadense
                                                   [Erigeron nevadensis]
                                     Orochaenactis
                                             Orochaenactis thysanocarpha
                                                   [Chaenactis thysanocarpha]
                                     Orthopappus
                                             Orthopappus angustifolius
                                                   [Elephantopus angustifolius]
                                     Osbertia
                                             Osbertia stolonifera
                                                   [Erigeron heleniastrum]
                                                   [Haplopappus stolonifer]
                                     Osmadenia
                                             Osmadenia tenella
                                                   [Calycadenia tenella]
                                                   [Hemizonia tenella]
                                     Osteospermum
                                             Osteospermum amplectens
                                             Osteospermum armatum
                                             Osteospermum bidens
                                             Osteospermum calendulaceum
                                             Osteospermum ciliatum
                                             Osteospermum corymbosum
                                             Osteospermum elsieae
                                             Osteospermum grandidentatum
                                             Osteospermum grandiflorum
                                             Osteospermum hyoseroides
                                             Osteospermum ilicifolium
                                             Osteospermum imbricatum
                                             Osteospermum incanum
                                               Osteospermum incanum subsp. incanum
                                                     [Chrysanthemoides incana]
                                             Osteospermum junceum
                                             Osteospermum leptolobum
                                             Osteospermum microcarpum
                                             Osteospermum microphyllum
                                             Osteospermum moniliferum
                                                   [Chrysanthemoides monilifera subsp. monilifera]
                                                   [Chrysanthemoides monilifera]
                                                   [Osteospermum moniliferum subsp. moniliferum]
                                               Osteospermum moniliferum subsp. rotundatum
                                                     [Chrysanthemoides monilifera subsp. rotundata]
                                               Osteospermum moniliferum subsp. septentrionale
                                                     [Chrysanthemoides monilifera subsp. septentrionalis]
                                             Osteospermum monstrosum
                                                   [Osteospermum clandestinum]
                                             Osteospermum montanum
                                             Osteospermum muricatum
                                             Osteospermum polypterum
                                                   [Dimorphotheca polyptera]
                                             Osteospermum rigidum
                                             Osteospermum sinuatum
                                             Osteospermum spinescens
                                                   [Osteospermum pachypteris]
                                             Osteospermum subulatum
                                     Oteiza
                                             Oteiza acuminata
                                                   [Perymenium acuminatum]
                                             Oteiza scandens
                                     Othonna
                                             Othonna coronopifolia
                                             Othonna cuneata
                                             Othonna furcata
                                             Othonna multicaulis
                                             Othonna parviflora
                                             Othonna pavonia
                                             Othonna perfoliata
                                             Othonna quinquedentata
                                             Othonna ramulosa
                                             Othonna triplinervia
                                     Otopappus
                                             Otopappus acuminatus
                                             Otopappus brevipes
                                             Otopappus curviflorus
                                                   [Notoptera scabridula]
                                             Otopappus epaleaceus
                                             Otopappus guatemalensis
                                                   [Salmea gaumeri]
                                             Otopappus hirsutus
                                             Otopappus imbricatus
                                                   [Otopappus xanthocarphus]
                                             Otopappus koelzii
                                             Otopappus microcephalus
                                             Otopappus scaber
                                             Otopappus serboana
                                             Otopappus tequilanus
                                             Otopappus verbesinoides
                                     Oxylobus
                                             Oxylobus arbutifolius
                                             Oxylobus oaxacanus
                                     Oxypappus
                                             Oxypappus scaber
                                                   [Oxypappus seemannii]
                                     Oxyphyllum
                                             Oxyphyllum ulicinum
                                     Oxytenia
                                     Oxyura
                                     Oyedaea
                                             Oyedaea verbesinoides
                                     Ozothamnus
                                             Ozothamnus diosmifolius
                                                   [Helichrysum diosmifolium]
                                             Ozothamnus hookeri
                                                   [Helichrysum hookeri]
                                             Ozothamnus ledifolius
                                                   [Helichrysum ledifolium]
                                             Ozothamnus leptophyllus
                                                   [Cassinia retorta]
                                             Ozothamnus lycopodioides
                                             Ozothamnus reticulatus
                                                   [Helichrysum reticulatum]
                                             Ozothamnus rosmarinifolius
                                             Ozothamnus rufescens
                                                   [Helichrysum rufescens]
                                             Ozothamnus secundiflorus
                                             Ozothamnus vagans
                                                   [Helichrysum vagans]
                                     Pachystegia
                                             Pachystegia insignis
                                             Pachystegia rufa
                                     Pachythamnus
                                     Packera
                                             Packera actinella
                                                   [Senecio actinella]
                                             Packera anonyma
                                                   [Senecio anonymus]
                                                   [Senecio smallii]
                                             Packera antennariifolia
                                             Packera aurea
                                                   [Senecio aureus]
                                             Packera bellidifolia
                                             Packera bernardina
                                                   [Senecio bernardinus]
                                                   [Senecio ionophyllus var. bernardinus]
                                                   [Senecio sparsilobatus]
                                             Packera bolanderi
                                                   [Senecio bolanderi]
                                               Packera bolanderi var. bolanderi
                                                     [Packera bolanderi]
                                                     [Senecio bolanderi var. bolanderi]
                                                     [Senecio bolanderi]
                                               Packera bolanderi var. harfordii
                                                     [Senecio harfordii]
                                             Packera breweri
                                                   [Senecio breweri]
                                             Packera cana
                                                   [Senecio canus]
                                                   [Senecio harbourii]
                                                   [Senecio howellii var. lithophilus]
                                                   [Senecio howellii]
                                                   [Senecio oreopolus var. aphanactis]
                                                   [Senecio oreopolus]
                                             Packera candidissima
                                                   [Senecio candidissimus]
                                             Packera cardamine
                                                   [Senecio cardamine]
                                             Packera clevelandii
                                                   [Packera clevelandii var. heterophylla]
                                                   [Senecio clevelandii var. clevelandii]
                                                   [Senecio clevelandii var. heterophyllus]
                                                   [Senecio clevelandii]
                                             Packera coahuilensis
                                                   [Senecio cyclophyllus]
                                             Packera contermina
                                             Packera crocata
                                                   [Senecio crocatus]
                                                   [Senecio pyrrhochrous]
                                             Packera cymbalaria
                                                   [Senecio resedifolius]
                                             Packera cynthioides
                                                   [Senecio cynthioides]
                                             Packera debilis
                                                   [Senecio debilis]
                                             Packera dimorphophylla
                                                   [Senecio dimorphophyllus]
                                               Packera dimorphophylla var. dimorphophylla
                                               Packera dimorphophylla var. intermedia
                                               Packera dimorphophylla var. paysonii
                                                     [Senecio dimorphophyllus var. paysonii]
                                             Packera eurycephala
                                                   [Senecio austinae]
                                                   [Senecio eurycephalus var. eurycephalus]
                                                   [Senecio eurycephalus]
                                               Packera eurycephala var. eurycephala
                                                     [Senecio eurycephalus var. eurycephalus]
                                               Packera eurycephala var. lewisrosei
                                                     [Senecio eurycephalus var. lewisrosei]
                                                     [Senecio lewisrosei]
                                             Packera fendleri
                                                   [Senecio fendleri]
                                                   [Senecio nelsonii]
                                             Packera flettii
                                             Packera franciscana
                                             Packera ganderi
                                                   [Senecio ganderi]
                                             Packera glabella
                                                   [Senecio glabellus]
                                             Packera greenei
                                                   [Senecio greenei]
                                             Packera hartiana
                                                   [Senecio hartianus]
                                                   [Senecio quaerens]
                                             Packera hesperia
                                                   [Senecio auleticus]
                                                   [Senecio hesperius]
                                             Packera hintoniorum
                                             Packera hyperborealis
                                             Packera indecora
                                                   [Senecio idahoensis]
                                                   [Senecio indecorus]
                                             Packera ionophylla
                                                   [Senecio ionophyllus]
                                             Packera layneae
                                                   [Senecio fastigiatus var. layneae]
                                                   [Senecio layneae]
                                             Packera macounii
                                                   [Senecio fastigiatus subsp. macounii]
                                                   [Senecio fastigiatus]
                                                   [Senecio ligulifolius]
                                                   [Senecio macounii]
                                             Packera malmstenii
                                                   [Senecio malmstenii]
                                             Packera millefolia
                                             Packera millelobata
                                                   [Senecio millelobatus]
                                             Packera montereyana
                                             Packera moranii
                                                   [Senecio moranii]
                                             Packera multilobata
                                                   [Senecio aureus var. multilobatus]
                                                   [Senecio leucoreus]
                                                   [Senecio lynceus]
                                                   [Senecio multilobatus]
                                                   [Senecio prolixus]
                                                   [Senecio stygius]
                                             Packera musiniensis
                                             Packera neomexicana
                                                   [Senecio neomexicanus var. neomexicanus]
                                                   [Senecio neomexicanus]
                                               Packera neomexicana var. mutabilis
                                                     [Senecio metcalfei]
                                                     [Senecio mutabilis]
                                                     [Senecio neomexicanus var. mutabilis]
                                               Packera neomexicana var. neomexicana
                                               Packera neomexicana var. toumeyi
                                                     [Senecio blumeri]
                                             Packera obovata
                                                   [Senecio obovatus var. rotundus]
                                                   [Senecio obovatus]
                                             Packera ogotorukensis
                                             Packera pauciflora
                                                   [Senecio aureus var. pauciflorus]
                                                   [Senecio lemberti]
                                                   [Senecio pauciflorus]
                                             Packera paupercula
                                                   [Senecio multnomensis]
                                                   [Senecio pauperculus var. thomsoniensis]
                                                   [Senecio pauperculus]
                                               Packera paupercula var. appalachiana
                                               Packera paupercula var. savannarum
                                             Packera plattensis
                                                   [Senecio plattensis]
                                             Packera porteri
                                                   [Senecio porteri]
                                             Packera pseudaurea
                                                   [Senecio pseudaureus]
                                               Packera pseudaurea var. flavula
                                                     [Senecio pseudaureus var. flavulus]
                                               Packera pseudaurea var. pseudaurea
                                                     [Packera pseudaurea subsp. pseudaurea]
                                                     [Senecio pauciflorus var. jucundulus]
                                                     [Senecio pseudaureus subsp. pseudaureus]
                                                     [Senecio pseudaureus var. pseudaureus]
                                               Packera pseudaurea var. semicordata
                                             Packera quebradensis
                                                   [Senecio quebradensis]
                                             Packera quercetorum
                                                   [Senecio quercetorum]
                                             Packera rosei
                                                   [Senecio rosei]
                                             Packera sanguisorbae
                                                   [Senecio sanguisorbae]
                                             Packera sanguisorboides
                                                   [Senecio sanguisorboides]
                                             Packera scalaris
                                                   [Senecio scalaris]
                                               Packera scalaris var. parrasiana
                                             Packera schweinitziana
                                             Packera serpenticola
                                             Packera streptanthifolia
                                                   [Packera cymbalarioides]
                                                   [Senecio jonesii]
                                                   [Senecio laetiflorus]
                                                   [Senecio streptanthifolius var. borealis]
                                                   [Senecio streptanthifolius var. laetiflorus]
                                                   [Senecio streptanthifolius var. streptanthifolius]
                                                   [Senecio streptanthifolius]
                                                   [Senecio suksdorfii]
                                               Packera streptanthifolia var. streptanthifolia
                                                     [Packera streptanthifolia var. rubricaulis]
                                                     [Packera streptanthifolia]
                                                     [Senecio cymbalarioides var. streptanthifolius]
                                             Packera subnuda
                                                   [Packera buekii]
                                                   [Senecio cymbalarioides]
                                                   [Senecio subnudus]
                                               Packera subnuda var. moresbiensis
                                               Packera subnuda var. subnuda
                                                     [Packera cymbalarioides]
                                                     [Senecio cymbalarioides]
                                             Packera tampicana
                                                   [Senecio greggii]
                                                   [Senecio imparipinnatus]
                                                   [Senecio tampicanus]
                                             Packera texensis
                                             Packera thurberi
                                                   [Senecio densus]
                                                   [Senecio thurberi]
                                             Packera toluccana
                                                   [Senecio toluccanus]
                                             Packera tomentosa
                                             Packera tridenticulata
                                                   [Senecio tridenticulatus]
                                             Packera umbraculifera
                                                   [Senecio umbraculifera]
                                             Packera werneriifolia
                                                   [Packera werneriaefolia]
                                                   [Senecio aureus var. werneriaefolius]
                                                   [Senecio aureus var. werneriifolius]
                                                   [Senecio muirii]
                                                   [Senecio pterocaulis]
                                                   [Senecio saxosus var. toiyabensis]
                                                   [Senecio saxosus]
                                                   [Senecio speculicola]
                                                   [Senecio werneriaefolius]
                                                   [Senecio werneriifolius]
                                     Palaeocyanus
                                     Palafoxia
                                             Palafoxia arenaria
                                             Palafoxia arida
                                                   [Palafoxia arida var. gigantea]
                                                   [Palafoxia linearis var. gigantea]
                                               Palafoxia arida var. arida
                                               Palafoxia arida var. gigantea
                                                     [Palafoxia linearis var. gigantea]
                                             Palafoxia callosa
                                             Palafoxia feayi
                                             Palafoxia hookeriana
                                                   [Palafoxia hookeriana var. minor]
                                             Palafoxia lindenii
                                             Palafoxia linearis
                                                   [Palafoxia leucophylla]
                                               Palafoxia linearis var. glandulosa
                                               Palafoxia linearis var. linearis
                                                     [Palafoxia linearis var. leucophylla]
                                             Palafoxia reverchonii
                                             Palafoxia rosea
                                                   [Palafoxia rosea var. macrolepis]
                                             Palafoxia sphacelata
                                             Palafoxia texana
                                                   [Othake robustum]
                                                   [Palafoxia texana var. ambigua]
                                                   [Palafoxia texana var. robusta]
                                               Palafoxia texana var. texana
                                     Pallenis
                                             Pallenis cuspidata
                                               Pallenis cuspidata subsp. cuspidata
                                                     [Asteriscus cuspidatus]
                                             Pallenis hierochuntica
                                                   [Asteriscus hierochunticus]
                                             Pallenis maritima
                                               Pallenis maritima subsp. maritima
                                                     [Asteriscus maritimus]
                                             Pallenis spinosa
                                               Pallenis spinosa subsp. maroccana
                                                     [Asteriscus spinosus subsp. maroccanus]
                                               Pallenis spinosa subsp. spinosa
                                                     [Asteriscus spinosus]
                                     Pappobolus
                                           [Helianthopsis]
                                             Pappobolus acutifolius
                                             Pappobolus amoenus
                                             Pappobolus andinus
                                             Pappobolus hutchisonii
                                             Pappobolus imbaburensis
                                             Pappobolus lanatus
                                               Pappobolus lanatus var. sanctae
                                             Pappobolus nigrescens
                                                   [Helianthus nigrescens]
                                             Pappobolus robinsonii
                                             Pappobolus sagasteguii
                                                   [Helianthopsis sagasteguii]
                                             Pappobolus sanchezii
                                             Pappobolus storkhortonianus
                                     Paraprenanthes
                                             Paraprenanthes polypodifolia
                                             Paraprenanthes sororia
                                                   [Lactuca sororia]
                                             Paraprenanthes triflora
                                                   [Stenoseris triflora]
                                     Parasenecio
                                             Parasenecio adenostyloides
                                                   [Cacalia adenostyloides]
                                             Parasenecio auriculata
                                                   [Cacalia auriculata]
                                                   [Koyamacalia auriculata]
                                             Parasenecio hastiformis
                                             Parasenecio palmatisectus
                                             Parasenecio quinquelobus
                                     Parastrephia
                                     Parthenice
                                             Parthenice mollis
                                               Parthenice mollis var. mollis
                                               Parthenice mollis var. peninsularis
                                     Parthenium
                                             Parthenium alpinum
                                             Parthenium argentatum
                                             Parthenium bipinnatifidum
                                             Parthenium confertum
                                               Parthenium confertum var. lyratum
                                               Parthenium confertum var. microcephalum
                                             Parthenium fruticosum
                                             Parthenium hispidum
                                             Parthenium hysterophorus
                                             Parthenium incanum
                                             Parthenium integrifolium
                                             Parthenium ligulatum
                                                   [Parthenium alpinum var. ligulatum]
                                             Parthenium lozanoanum
                                             Parthenium rollinsianum
                                             Parthenium schottii
                                             Parthenium tetraneuris
                                                   [Parthenium alpinum var. tetraneuris]
                                             Parthenium tomentosum
                                               Parthenium tomentosum var. stramonium
                                                     [Parthenium stramonium]
                                     Pectis
                                             Pectis angustifolia
                                                   [Pectis papposa var. sessilis]
                                               Pectis angustifolia var. angustifolia
                                               Pectis angustifolia var. fastigiata
                                               Pectis angustifolia var. tenella
                                             Pectis arida
                                             Pectis barberi
                                                   [Pectis multiflora]
                                             Pectis berlandieri
                                             Pectis bonplandiana
                                                   [Pectis panamensis]
                                             Pectis brevipedunculata
                                             Pectis cajamarcana
                                             Pectis capillipes
                                                   [Pectis erecta]
                                             Pectis coulteri
                                             Pectis cubensis
                                             Pectis cylindrica
                                             Pectis decemcarinata
                                             Pectis depressa
                                             Pectis diffusa
                                             Pectis elongata
                                                   [Pectis elongata var. fasciculiflora]
                                                   [Pectis oerstediana]
                                             Pectis ericifolia
                                             Pectis exilis
                                             Pectis exserta
                                             Pectis filipes
                                               Pectis filipes var. filipes
                                               Pectis filipes var. subnuda
                                             Pectis floridana
                                             Pectis guaranitica
                                             Pectis haenkeana
                                             Pectis holochaeta
                                               Pectis holochaeta var. cana
                                             Pectis imberbis
                                             Pectis incisifolia
                                             Pectis latisquama
                                             Pectis leavenworthii
                                             Pectis liebmannii
                                             Pectis linearifolia
                                             Pectis linearis
                                                   [Pectis capillaris]
                                             Pectis linifolia
                                                   [Pectis linifolia var. hirtella]
                                               Pectis linifolia var. linifolia
                                             Pectis longipes
                                             Pectis multiceps
                                             Pectis multiflosculosa
                                             Pectis multiseta
                                               Pectis multiseta var. ambigua
                                                     [Pectis ambigua]
                                               Pectis multiseta var. multiseta
                                             Pectis odorata
                                                   [Pectis odorata f. major]
                                             Pectis papposa
                                               Pectis papposa var. grandis
                                               Pectis papposa var. papposa
                                             Pectis peruviana
                                             Pectis pringlei
                                             Pectis propetes
                                             Pectis prostrata
                                                   [Pectis prostrata var. urceolata]
                                             Pectis pumila
                                             Pectis purpurea
                                               Pectis purpurea var. lancifolia
                                               Pectis purpurea var. sonorae
                                             Pectis repens
                                             Pectis rusbyi
                                                   [Pectis palmeri]
                                             Pectis saturejoides
                                                   [Pectis polyantha]
                                             Pectis sessiliflora
                                             Pectis sinaloensis
                                             Pectis stenophylla
                                               Pectis stenophylla var. biaristata
                                               Pectis stenophylla var. puberula
                                                     [Pectis puberula]
                                                     [Pectis scabra]
                                               Pectis stenophylla var. rosei
                                               Pectis stenophylla var. stenophylla
                                             Pectis subsquarrosa
                                                   [Pectis glabra]
                                                   [Pectis hookeri]
                                             Pectis substriata
                                             Pectis tenuifolia
                                             Pectis uniaristata
                                               Pectis uniaristata var. holostemma
                                                     [Pectis dichotoma]
                                               Pectis uniaristata var. jangadensis
                                               Pectis uniaristata var. uniaristata
                                             Pectis vandevenderi
                                             Pectis vollmeri
                                     Pegolettia
                                             Pegolettia oxyodonta
                                             Pegolettia pinnatilobata
                                             Pegolettia retrofracta
                                             Pegolettia senegalensis
                                     Pelucha
                                             Pelucha trifida
                                     Pembertonia
                                             Pembertonia latisquamea
                                                   [Brachyscome latisquamea]
                                     Pentacalia
                                             Pentacalia breviligulata
                                             Pentacalia campii
                                                   [Senecio campii]
                                             Pentacalia epidendra
                                                   [Senecio epidendrus]
                                             Pentacalia gibbiflora
                                                   [Senecio gibbiflorus]
                                             Pentacalia huilensis
                                             Pentacalia jelskii
                                             Pentacalia loretensis
                                                   [Senecio loretensis]
                                             Pentacalia lucidissima
                                                   [Senecio lucidissimus]
                                             Pentacalia luteynorum
                                             Pentacalia morazensis
                                                   [Senecio morazensis]
                                             Pentacalia parasitica
                                             Pentacalia phorodendroides
                                                   [Senecio phorodendroides]
                                             Pentacalia ruficaulis
                                                   [Senecio ruficaulis]
                                             Pentacalia venturae
                                                   [Senecio venturae]
                                     Pentachaeta
                                             Pentachaeta alsinoides
                                                   [Chaetopappa alsinoides]
                                             Pentachaeta aurea
                                                   [Chaetopappa aurea]
                                               Pentachaeta aurea subsp. allenii
                                               Pentachaeta aurea subsp. aurea
                                                     [Chaetopappa aurea]
                                             Pentachaeta bellidiflora
                                                   [Chaetopappa bellidiflora]
                                             Pentachaeta exilis
                                                   [Aphantochaeta exilis]
                                                   [Chaetopappa exilis]
                                               Pentachaeta exilis subsp. aeolica
                                               Pentachaeta exilis subsp. exilis
                                                     [Pentachaeta exilis var. exilis]
                                             Pentachaeta fragilis
                                                   [Chaetopappa fragilis]
                                             Pentachaeta laxa
                                             Pentachaeta lyonii
                                                   [Chaetopappa lyonii]
                                               Thymophylla pentachaeta var. hartwegii
                                                     [Dyssodia berlandieri]
                                               Thymophylla pentachaeta var. puberula
                                                     [Dyssodia pentachaeta var. puberula]
                                     Pentanema
                                             Pentanema bifrons
                                                   [Inula bifrons]
                                             Pentanema conyzae
                                                   [Inula conyzae]
                                             Pentanema ensifolium
                                                   [Inula ensifolia]
                                             Pentanema montanum
                                             Pentanema rigidum
                                                   [Inula rigida]
                                             Pentanema strictum
                                                   [Inula stricta]
                                             Pentanema verbascifolium
                                               Pentanema verbascifolium subsp. methanaeum
                                                     [Inula attica]
                                     Pentzia
                                             Pentzia calcarea
                                             Pentzia cooperi
                                             Pentzia dentata
                                             Pentzia globosa
                                             Pentzia incana
                                             Pentzia lanata
                                             Pentzia monocephala
                                             Pentzia monodiana
                                             Pentzia punctata
                                             Pentzia sphaerocephala
                                             Pentzia spinescens
                                     Perezia
                                             Perezia foliosa
                                             Perezia magellanica
                                             Perezia pungens
                                             Perezia recurvata
                                     Pereziopsis
                                     Pericallis
                                             Pericallis appendiculata
                                             Pericallis cruenta
                                                   [Senecio cruentus]
                                             Pericallis hybrida
                                                   [Pericallis]
                                                   [Senecio hybridus]
                                             Pericallis lanata
                                             Pericallis malvifolia
                                               Pericallis malvifolia subsp. malvifolia
                                                     [Cineraria bracteata]
                                             Pericallis webbii
                                     Pericome
                                             Pericome caudata
                                                   [Pericome caudata var. glandulosa]
                                                   [Pericome glandulosa]
                                             Pericome macrocephala
                                     Perityle
                                             Perityle aglossa
                                             Perityle ambrosiifolia
                                             Perityle angustifolia
                                             Perityle aurea
                                             Perityle batopilensis
                                             Perityle bisetosa
                                               Perityle bisetosa var. spathulata
                                             Perityle californica
                                             Perityle canescens
                                             Perityle castillonii
                                             Perityle cernua
                                             Perityle ciliata
                                             Perityle cinerea
                                             Perityle cochisensis
                                             Perityle congesta
                                                   [Laphamia congesta]
                                             Perityle cordifolia
                                             Perityle coronopifolia
                                             Perityle crassifolia
                                               Perityle crassifolia var. crassifolia
                                               Perityle crassifolia var. robusta
                                                     [Perityle robusta]
                                             Perityle cuneata
                                               Perityle cuneata var. cuneata
                                               Perityle cuneata var. marginata
                                                     [Perityle marginata]
                                             Perityle dissecta
                                             Perityle emoryi
                                                   [Perityle fitchii]
                                                   [Perityle grayi]
                                                   [Perityle greenei]
                                             Perityle feddemae
                                             Perityle gentryi
                                             Perityle gilensis
                                                   [Laphamia gilensis]
                                               Perityle gilensis var. gilensis
                                               Perityle gilensis var. salensis
                                             Perityle gracilis
                                                   [Laphamia fastigiata]
                                                   [Laphamia gracilis]
                                             Perityle grandifolia
                                             Perityle huecoensis
                                             Perityle incana
                                             Perityle incompta
                                             Perityle jaliscana
                                             Perityle lemmonii
                                             Perityle leptoglossa
                                             Perityle lindheimeri
                                               Perityle lindheimeri var. halimifolia
                                                     [Laphamia halimifolia]
                                               Perityle lindheimeri var. lindheimeri
                                             Perityle lobata
                                                   [Leptopharynx lobata]
                                             Perityle macromeres
                                             Perityle microcephala
                                             Perityle microglossa
                                                   [Perityle acmella]
                                                   [Perityle plumigera]
                                               Perityle microglossa var. microglossa
                                               Perityle microglossa var. saxosa
                                                     [Perityle saxosa]
                                             Perityle montana
                                                   [Correllia montana]
                                             Perityle palmeri
                                             Perityle parryi
                                             Perityle quinqueflora
                                                   [Laphamia quinqueflora]
                                             Perityle rupestris
                                               Perityle rupestris var. albiflora
                                               Perityle rupestris var. rupestris
                                             Perityle saxicola
                                                   [Laphamia saxicola]
                                             Perityle scopulorum
                                                   [Laphamia scopulorum]
                                             Perityle socorrosensis
                                             Perityle stansburii
                                             Perityle staurophylla
                                                   [Laphamia staurophylla]
                                             Perityle tenella
                                                   [Laphamia palmeri var. tenella]
                                                   [Laphamia palmeri]
                                             Perityle trichodonta
                                             Perityle turneri
                                             Perityle vaseyi
                                             Perityle warnockii
                                     Pertya
                                             Pertya bodinieri
                                             Pertya discolor
                                             Pertya glabrescens
                                             Pertya phylicoides
                                             Pertya robusta
                                                   [Macroclinidium robustum]
                                             Pertya scandens
                                     Perymenium
                                             Perymenium alticola
                                             Perymenium asperifolium
                                             Perymenium berlandieri
                                             Perymenium buphthalmoides
                                                   [Perymenium buphthalmoides var. occidentale]
                                                   [Perymenium buphthalmoides var. tenellum]
                                               Perymenium buphthalmoides var. buphthalmoides
                                             Perymenium chloroleucum
                                             Perymenium cornutum
                                             Perymenium cualense
                                             Perymenium discolor
                                             Perymenium episcopale
                                             Perymenium featherstonei
                                             Perymenium ghiesbreghtii
                                                   [Perymenium purpusii]
                                             Perymenium glandulosum
                                             Perymenium globosum
                                             Perymenium gracile
                                             Perymenium grande
                                               Perymenium grande var. grande
                                               Perymenium grande var. nelsonii
                                                     [Perymenium nelsonii]
                                             Perymenium gymnolomoides
                                             Perymenium hintonii
                                             Perymenium jaliscense
                                             Perymenium klattianum
                                             Perymenium macrocephalum
                                             Perymenium mendezii
                                               Perymenium mendezii var. angustifolium
                                                     [Perymenium angustifolium]
                                               Perymenium mendezii var. mendezii
                                               Perymenium mendezii var. verbesinoides
                                                     [Perymenium verbesinoides]
                                             Perymenium nicaraguense
                                             Perymenium oaxacanum
                                             Perymenium ovatum
                                             Perymenium oxycarphum
                                             Perymenium parvifolium
                                             Perymenium pinetorum
                                             Perymenium pringlei
                                               Perymenium pringlei var. croceum
                                               Perymenium pringlei var. lancifolium
                                                     [Perymenium lancifolium]
                                             Perymenium reticulatum
                                             Perymenium rogmacvaughii
                                             Perymenium rude
                                             Perymenium stenophyllum
                                             Perymenium tehuacanum
                                     Petasites
                                             Petasites albus
                                             Petasites frigidus
                                               Petasites frigidus subsp. frigidus
                                                     [Petasites hyperboreus]
                                               Petasites frigidus var. frigidus
                                               Petasites frigidus var. palmatus
                                                     [Petasites palmatus]
                                                     [Petasites speciosus]
                                               Petasites frigidus var. sagittatus
                                                     [Petasites sagittatus]
                                             Petasites hybridus
                                             Petasites japonicus
                                             Petasites pyrenaicus
                                                   [Petasites fragrans]
                                             Petasites tricholobus
                                     Peteravenia
                                             Peteravenia phoenicolepis
                                             Peteravenia schultzii
                                                   [Eupatorium schultzii]
                                     Petradoria
                                             Petradoria pumila
                                                   [Solidago petradoria]
                                               Petradoria pumila var. pumila
                                                     [Petradoria pumila subsp. pumila]
                                     Peucephyllum
                                           [Inyonia]
                                             Peucephyllum schottii
                                                   [Inyonia dysodioides]
                                                   [Peucephyllum schottii var. latisetum]
                                                   [Psathyrotes schottii]
                                     Phaenocoma
                                             Phaenocoma prolifera
                                     Phagnalon
                                             Phagnalon calycinum
                                             Phagnalon graecum
                                                   [Phagnalon rupestre subsp. graecum]
                                             Phagnalon rupestre
                                             Phagnalon saxatile
                                             Phagnalon sordidum
                                             Phagnalon viridifolium
                                     Phalacroseris
                                             Phalacroseris bolanderi
                                                   [Phalacroseris bolanderi var. bolanderi]
                                                   [Phalacroseris bolanderi var. coronata]
                                     Philactis
                                             Philactis fayi
                                             Philactis liebmannii
                                                   [Melanthera fruticosa]
                                             Philactis nelsonii
                                             Philactis zinnioides
                                     Philoglossa
                                     Phymaspermum
                                             Phymaspermum acerosum
                                                   [Athanasia acerosa]
                                             Phymaspermum athanasioides
                                             Phymaspermum bolusii
                                             Phymaspermum parvifolium
                                     Picradenia
                                     Picradeniopsis
                                             Picradeniopsis absinthifolia
                                                   [Bahia absinthifolia var. absinthifolia]
                                                   [Bahia absinthifolia var. dealbata]
                                                   [Bahia absinthifolia]
                                             Picradeniopsis bigelovii
                                                   [Bahia bigelovii]
                                             Picradeniopsis multiflora
                                                   [Achyropappus neomexicanus]
                                                   [Amblyopappus neomexicanus]
                                                   [Bahia neomexicana]
                                                   [Cephalobembix neomexicana]
                                                   [Schkuhria multiflora var. multiflora]
                                                   [Schkuhria multiflora]
                                                   [Schkuhria neomexicana]
                                             Picradeniopsis oppositifolia
                                                   [Bahia oppositifolia]
                                             Picradeniopsis pringlei
                                                   [Bahia pringlei]
                                             Picradeniopsis schaffneri
                                                   [Bahia schaffneri]
                                             Picradeniopsis woodhousei
                                                   [Bahia woodhousei]
                                             Picradeniopsis xylopoda
                                                   [Bahia ehrenbergii]
                                                   [Bahia xylopoda]
                                     Picris
                                             Picris asplenioides
                                               Picris asplenioides subsp. asplenioides
                                             Picris divaricata
                                             Picris hieracioides
                                             Picris hispanica
                                             Picris japonica
                                               Picris japonica subsp. japonica
                                                     [Picris hieracioides subsp. japonica]
                                     Picrothamnus
                                     Pilosella
                                             Pilosella arguta
                                                   [Hieracium argutum var. argutum]
                                                   [Hieracium argutum var. parishii]
                                                   [Hieracium argutum]
                                             Pilosella aurantiaca
                                               Pilosella aurantiaca subsp. aurantiaca
                                                     [Hieracium aurantiacum]
                                             Pilosella bifurca
                                                   [Hieracium cinereum]
                                             Pilosella caespitosa
                                               Pilosella caespitosa subsp. caespitosa
                                                     [Hieracium caespitosum]
                                                     [Hieracium pratense]
                                             Pilosella cana
                                                   [Hieracium canum]
                                             Pilosella cymosa
                                               Pilosella cymosa subsp. vaillantii
                                                     [Pilosella cymigera]
                                             Pilosella echioides
                                               Pilosella echioides subsp. echioides
                                                     [Hieracium echioides]
                                             Pilosella fallacina
                                                   [Hieracium germanicum subsp. prantlii]
                                                   [Hieracium germanicum]
                                             Pilosella floribunda
                                                   [Hieracium auricula]
                                                   [Hieracium floribundum]
                                                   [Hieracium islandicum]
                                             Pilosella friesii
                                                   [Hieracium liebmannii]
                                                   [Hieracium schultzii]
                                             Pilosella glomerata
                                                   [Hieracium glomeratum]
                                                   [Hieracium griseum]
                                                   [Hieracium haraldii]
                                             Pilosella irasuensis
                                                   [Hieracium irasuense]
                                             Pilosella lactucella
                                               Pilosella lactucella subsp. lactucella
                                                     [Hieracium lactucella]
                                             Pilosella longipila
                                                   [Hieracium longipilum]
                                             Pilosella magellanica
                                                   [Hieracium antarcticum]
                                             Pilosella mexicana
                                                   [Hieracium mexicanum]
                                             Pilosella occidentalis
                                                   [Hieracium occidentale]
                                             Pilosella officinarum
                                             Pilosella piloselloides
                                               Pilosella piloselloides subsp. piloselloides
                                                     [Hieracium florentinum]
                                                     [Hieracium piloselloides]
                                               Pilosella piloselloides subsp. praealta
                                                     [Hieracium praealtum]
                                             Pilosella prussica
                                                   [Hieracium prussicum subsp. strehlenense]
                                                   [Hieracium prussicum]
                                             Pilosella scouleri
                                                   [Hieracium absonum]
                                                   [Hieracium albertinum]
                                                   [Hieracium chapacanum]
                                                   [Hieracium cynoglossoides]
                                             Pilosella tristis
                                                   [Hieracium gracile]
                                                   [Hieracium triste]
                                             Pilosella venosa
                                                   [Hieracium venosum]
                                               Psychotria pilosella subsp. erythrotricha
                                                     [Psychotria erythrotricha]
                                     Piloselloides
                                             Piloselloides cordata
                                                   [Gerbera cordata]
                                             Piloselloides hirsuta
                                                   [Gerbera piloselloides]
                                     Pinaropappus
                                             Pinaropappus junceus
                                             Pinaropappus multicaulis
                                             Pinaropappus parvus
                                             Pinaropappus roseus
                                               Pinaropappus roseus subsp. roseus
                                                     [Pinaropappus roseus var. foliosus]
                                               Pinaropappus roseus var. maculatus
                                               Pinaropappus roseus var. roseus
                                             Pinaropappus spathulatus
                                                   [Pinaropappus caespitosus]
                                                   [Pinaropappus spathulatus var. chiapensis]
                                     Pionocarpus
                                     Pippenalia
                                             Pippenalia delphinifolia
                                                   [Odontotrichum delphinifolium]
                                     Piptocarpha
                                             Piptocarpha poeppigiana
                                                   [Piptocarpha chontalensis]
                                             Piptocarpha rotundifolia
                                               Piptocarpha rotundifolia subsp. hatschbachii
                                             Piptocarpha tetrantha
                                     Piptocoma
                                             Piptocoma discolor
                                     Piptothrix
                                     Piqueria
                                             Piqueria laxiflora
                                             Piqueria pilosa
                                                   [Piqueria pringlei]
                                             Piqueria serrata
                                             Piqueria triflora
                                             Piqueria trinervia
                                                   [Mikania anomala]
                                                   [Piqueria serrata var. angustifolia]
                                     Piqueriopsis
                                     Pittocaulon
                                             Pittocaulon bombycophole
                                                   [Senecio bombycopholis]
                                             Pittocaulon filare
                                                   [Senecio filaris]
                                             Pittocaulon praecox
                                                   [Senecio praecox]
                                             Pittocaulon velatum
                                               Pittocaulon velatum var. tzimolensis
                                                     [Senecio praecox var. tzimolensis]
                                     Pityopsis
                                             Pityopsis aspera
                                               Pityopsis aspera var. adenolepis
                                             Pityopsis falcata
                                                   [Chrysopsis falcata]
                                             Pityopsis flexuosa
                                             Pityopsis graminifolia
                                                   [Chrysopsis graminifolia]
                                                   [Chrysopsis nervosa]
                                                   [Chrysopsis oligantha]
                                                   [Heterotheca graminifolia]
                                                   [Heterotheca nervosa]
                                               Pityopsis graminifolia var. aequilifolia
                                               Pityopsis graminifolia var. graminifolia
                                               Pityopsis graminifolia var. latifolia
                                               Pityopsis graminifolia var. tenuifolia
                                               Pityopsis graminifolia var. tracyi
                                             Pityopsis pinifolia
                                                   [Chrysopsis pinifolia]
                                     Platyschkuhria
                                             Platyschkuhria integrifolia
                                                   [Bahia desertorum]
                                                   [Bahia nudicaulis var. desertorum]
                                                   [Bahia nudicaulis var. oblongifolia]
                                                   [Bahia nudicaulis var. ourolepis]
                                                   [Bahia nudicaulis]
                                                   [Bahia oblongifolia]
                                                   [Bahia ourolepis]
                                                   [Platyschkuhria integrifolia var. desertorum]
                                                   [Platyschkuhria integrifolia var. oblongifolia]
                                                   [Platyschkuhria integrifolia var. ourolepis]
                                     Plecostachys
                                             Plecostachys polifolia
                                             Plecostachys serpyllifolia
                                                   [Gnaphalium serpyllifolium]
                                                   [Helichrysum orbiculare]
                                                   [Helichrysum serpyllifolium]
                                     Plectocephalus
                                             Plectocephalus americanus
                                                   [Centaurea americana]
                                             Plectocephalus chilensis
                                                   [Centaurea chilensis]
                                             Plectocephalus rothrockii
                                                   [Centaurea rothrockii]
                                     Pleiacanthus
                                             Pleiacanthus spinosus
                                                   [Lygodesmia spinosa]
                                                   [Stephanomeria spinosa]
                                     Pleocarphus
                                             Pleocarphus revolutus
                                     Pleurocoronis
                                             Pleurocoronis gentryi
                                                   [Hofmeisteria gentryi]
                                             Pleurocoronis laphamioides
                                                   [Hofmeisteria laphamioides var. laphamioides]
                                                   [Hofmeisteria laphamioides var. pauciseta]
                                                   [Hofmeisteria laphamioides]
                                                   [Hofmeisteria pluriseta var. pauciseta]
                                                   [Pleurocoronis laphamioides var. pauciseta]
                                               Pleurocoronis laphamioides var. laphamioides
                                             Pleurocoronis pluriseta
                                                   [Hofmeisteria pluriseta]
                                     Pluchea
                                             Pluchea baccharis
                                                   [Pluchea rosea]
                                             Pluchea camphorata
                                             Pluchea carolinensis
                                             Pluchea dentex
                                             Pluchea dioscoridis
                                             Pluchea foetida
                                                   [Pluchea imbricata]
                                             Pluchea indica
                                             Pluchea mexicana
                                             Pluchea oblongifolia
                                             Pluchea odorata
                                                   [Pluchea purpurascens]
                                               Pluchea odorata var. odorata
                                               Pluchea odorata var. succulenta
                                             Pluchea ovalis
                                             Pluchea polygonata
                                             Pluchea rubelliflora
                                             Pluchea sagittalis
                                                   [Pluchea suaveolens]
                                             Pluchea salicifolia
                                                   [Pluchea adnata var. parvifolia]
                                                   [Pluchea adnata]
                                                   [Pluchea parvifolia]
                                                   [Pluchea subdecurrens var. parvifolia]
                                               Pluchea salicifolia var. canescens
                                             Pluchea sarcophylla
                                             Pluchea sericea
                                                   [Berthelotia sericea]
                                                   [Eremohylema sericea]
                                                   [Polypappus sericeus]
                                                   [Tessaria borealis]
                                                   [Tessaria sericea]
                                             Pluchea sordida
                                             Pluchea tetranthera
                                     Plummera
                                     Podachaenium
                                             Podachaenium chiapanum
                                             Podachaenium eminens
                                             Podachaenium pachyphyllum
                                                   [Verbesina pachyphylla]
                                     Podanthus
                                             Podanthus mitiqui
                                             Podanthus ovatifolius
                                     Podolepis
                                             Podolepis arachnoidea
                                                   [Podolepis rutidochlamys]
                                             Podolepis capillaris
                                             Podolepis gardneri
                                             Podolepis gracilis
                                             Podolepis kendallii
                                             Podolepis rugata
                                     Podospermum
                                             Podospermum canum
                                                   [Scorzonera cana]
                                             Podospermum laciniatum
                                               Podospermum laciniatum subsp. laciniatum
                                                     [Scorzonera laciniata]
                                     Pojarkovia
                                             Pojarkovia pojarkovae
                                                   [Ligularia stenocephalus]
                                     Polyachyrus
                                             Polyachyrus fuscus
                                             Polyachyrus poeppigii
                                     Polyanthina
                                             Polyanthina nemorosa
                                     Polymnia
                                             Polymnia canadensis
                                             Polymnia macvaughii
                                     Polypappus
                                     Polypteris
                                     Porophyllum
                                             Porophyllum angustissimum
                                             Porophyllum calcicola
                                             Porophyllum coloratum
                                                   [Porophyllum simplex]
                                             Porophyllum gracile
                                                   [Porophyllum caesium]
                                                   [Porophyllum confertum var. ochroleucum]
                                                   [Porophyllum confertum]
                                                   [Porophyllum nodosum]
                                                   [Porophyllum ochroleucum]
                                                   [Porophyllum pinifolium]
                                                   [Porophyllum vaseyi]
                                             Porophyllum hasslerianum
                                             Porophyllum lanceolatum
                                             Porophyllum leiocarpum
                                             Porophyllum linaria
                                             Porophyllum lindenii
                                                   [Porophyllum purpureum]
                                                   [Porophyllum rotundifolium]
                                             Porophyllum maritimum
                                                   [Porophyllum porfyreum]
                                             Porophyllum nelsonii
                                             Porophyllum pausodynum
                                             Porophyllum pringlei
                                                   [Porophyllum quinqueflorum]
                                             Porophyllum punctatum
                                                   [Porophyllum jorullense]
                                                   [Porophyllum oblongum]
                                             Porophyllum pygmaeum
                                             Porophyllum ruderale
                                               Porophyllum ruderale subsp. ruderale
                                               Porophyllum ruderale var. macrocephalum
                                                     [Porophyllum macrocephalum]
                                                     [Porophyllum ruderale subsp. macrocephalum]
                                               Porophyllum ruderale var. ruderale
                                             Porophyllum scoparium
                                                   [Porophyllum fruticulosum]
                                             Porophyllum tagetoides
                                             Porophyllum viridiflorum
                                                   [Porophyllum nutans]
                                             Porophyllum warnockii
                                     Praxelis
                                             Praxelis clematidea
                                                   [Eupatorium urticifolium var. clematideum]
                                             Praxelis kleinioides
                                                   [Eupatorium kleinioides var. latifolium]
                                                   [Eupatorium kleinioides]
                                     Prenanthella
                                             Prenanthella exigua
                                                   [Lygodesmia exigua]
                                                   [Prenanthes exigua]
                                     Prenanthes
                                             Prenanthes purpurea
                                     Prionopsis
                                     Proustia
                                             Proustia cuneifolia
                                             Proustia ilicifolia
                                               Proustia ilicifolia f. baccharoides
                                             Proustia pyrifolia
                                     Psacaliopsis
                                             Psacaliopsis paneroi
                                               Psacaliopsis paneroi var. juxtlahuacensis
                                             Psacaliopsis pinetorum
                                                   [Senecio pinetorum]
                                     Psacalium
                                             Psacalium amplifolium
                                             Psacalium amplum
                                                   [Odontotrichum amplum]
                                             Psacalium beamanii
                                             Psacalium brachycomum
                                             Psacalium calvum
                                                   [Cacalia calva]
                                             Psacalium cirsiifolium
                                                   [Odontotrichum cirsiifolium]
                                             Psacalium decompositum
                                                   [Cacalia decomposita]
                                                   [Odontotrichum decompositum]
                                             Psacalium eriocarpum
                                                   [Cacalia eriocarpa]
                                             Psacalium globosum
                                                   [Odontotrichum globosum]
                                             Psacalium goldsmithii
                                                   [Odontotrichum goldsmithii]
                                             Psacalium hintonii
                                                   [Psacalium peltigerum var. hintonii]
                                             Psacalium laxiflorum
                                             Psacalium megaphyllum
                                             Psacalium nanum
                                             Psacalium napellifolium
                                             Psacalium pachyphyllum
                                                   [Odontotrichum pachyphyllum]
                                             Psacalium palmeri
                                                   [Cacalia palmeri]
                                                   [Odontotrichum palmeri]
                                             Psacalium paucicapitatum
                                                   [Odontotrichum paucicapitatum]
                                             Psacalium peltatum
                                               Psacalium peltatum var. adenophorum
                                               Psacalium peltatum var. conzattii
                                                     [Cacalia peltata var. conzattii]
                                             Psacalium peltigerum
                                             Psacalium platylepis
                                                   [Cacalia platylepis]
                                                   [Odontotrichum platylepis]
                                             Psacalium poculiferum
                                             Psacalium pringlei
                                                   [Cacalia pringlei]
                                                   [Odontotrichum pringlei]
                                             Psacalium purpusii
                                                   [Odontotrichum purpusii]
                                             Psacalium radulifolium
                                             Psacalium silphiifolium
                                                   [Odontotrichum silphiifolium]
                                             Psacalium sinuatum
                                                   [Odontotrichum sinuatum]
                                             Psacalium tabulare
                                                   [Cacalia tabularis]
                                             Psacalium tussilaginoides
                                                   [Odontotrichum tussilaginoides]
                                             Psacalium villosum
                                     Psathyrotes
                                             Psathyrotes annua
                                                   [Bulbostylis annua]
                                             Psathyrotes pilifera
                                             Psathyrotes ramosissima
                                                   [Tetradymia ramosissima]
                                     Psathyrotopsis
                                             Psathyrotopsis purpusii
                                                   [Psathyrotes purpusii]
                                             Psathyrotopsis scaposa
                                                   [Psathyrotes scaposa]
                                     Psephellus
                                             Psephellus hypoleucus
                                                   [Centaurea hypoleuca]
                                             Psephellus simplicicaulis
                                                   [Centaurea bella]
                                     Pseudelephantopus
                                             Pseudelephantopus spicatus
                                                   [Elephantopus spicatus]
                                             Pseudelephantopus spiralis
                                     Pseudobahia
                                             Pseudobahia bahiifolia
                                                   [Eriophyllum bahiifolium]
                                                   [Lasthenia bahiifolia]
                                                   [Monolopia bahiifolia]
                                                   [Pseudobahia bahiifolia var. bahiifolia]
                                             Pseudobahia heermannii
                                                   [Eriophyllum heermanni]
                                                   [Eriophyllum heermannii]
                                                   [Monolopia bahiifolia var. pinnatifida]
                                                   [Monolopia heermannii]
                                                   [Pseudobahia bahiifolia var. pinnatifida]
                                                   [Pseudobahia heermanni]
                                             Pseudobahia peirsonii
                                     Pseudobravoa
                                     Pseudoclappia
                                             Pseudoclappia arenaria
                                     Pseudoconyza
                                             Pseudoconyza viscosa
                                                   [Conyza chiapensis]
                                                   [Conyza lyrata]
                                                   [Pseudoconyza lyrata]
                                     Pseudognaphalium
                                             Pseudognaphalium adnatum
                                             Pseudognaphalium affine
                                                   [Gnaphalium luteoalbum subsp. affine]
                                             Pseudognaphalium altamiranum
                                                   [Gnaphalium altamiranum]
                                             Pseudognaphalium attenuatum
                                                   [Gnaphalium attenuatum]
                                             Pseudognaphalium beneolens
                                                   [Gnaphalium beneolens]
                                                   [Gnaphalium canescens subsp. beneolens]
                                                   [Pseudognaphalium canescens subsp. beneolens]
                                             Pseudognaphalium biolettii
                                                   [Gnaphalium bicolor]
                                                   [Pseudognaphalium bicolor]
                                             Pseudognaphalium bourgovii
                                                   [Gnaphalium bourgovii]
                                             Pseudognaphalium brachyphyllum
                                             Pseudognaphalium brachypterum
                                             Pseudognaphalium cacachilense
                                             Pseudognaphalium californicum
                                                   [Gnaphalium californicum]
                                                   [Gnaphalium decurrens var. californicum]
                                             Pseudognaphalium canescens
                                                   [Gnaphalium canescens subsp. canescens]
                                                   [Gnaphalium canescens]
                                                   [Gnaphalium wrightii]
                                                   [Pseudognaphalium canescens subsp. canescens]
                                             Pseudognaphalium chartaceum
                                                   [Gnaphalium chartaceum]
                                             Pseudognaphalium cheiranthifolium
                                                   [Gnaphalium viscosum]
                                             Pseudognaphalium cymatoides
                                                   [Gnaphalium cheiranthifolium]
                                             Pseudognaphalium ehrenbergianum
                                                   [Gnaphalium ehrenbergianum]
                                             Pseudognaphalium elegans
                                                   [Gnaphalium elegans]
                                             Pseudognaphalium gaudichaudianum
                                                   [Gnaphalium gaudichaudianum]
                                             Pseudognaphalium greenmannii
                                                   [Gnaphalium greenmanii]
                                             Pseudognaphalium helleri
                                                   [Gnaphalium helleri]
                                             Pseudognaphalium heterotrichum
                                             Pseudognaphalium hypoleucum
                                                   [Gnaphalium hypoleucum]
                                             Pseudognaphalium jaliscense
                                                   [Gnaphalium jaliscense]
                                             Pseudognaphalium leucocephalum
                                                   [Gnaphalium leucocephalum]
                                             Pseudognaphalium liebmannii
                                                   [Gnaphalium liebmannii]
                                                   [Gnaphalium vulcanicum var. monticola]
                                                   [Gnaphalium vulcanicum]
                                             Pseudognaphalium luteoalbum
                                                   [Gnaphalium luteo-album]
                                                   [Gnaphalium luteoalbum]
                                                   [Helichrysum luteoalbum]
                                                   [Laphangium luteoalbum]
                                                   [Pseudognaphalium luteo-album]
                                             Pseudognaphalium macounii
                                                   [Gnaphalium macounii]
                                             Pseudognaphalium martirense
                                             Pseudognaphalium microcephalum
                                                   [Gnaphalium albidum]
                                                   [Gnaphalium canescens subsp. microcephalum]
                                                   [Gnaphalium microcephalum subsp. microcephalum]
                                                   [Gnaphalium microcephalum var. microcephalum]
                                                   [Gnaphalium microcephalum]
                                                   [Pseudognaphalium canescens subsp. microcephalum]
                                                   [Pseudognaphalium microcephalum var. microcephalum]
                                             Pseudognaphalium montevidense
                                                   [Gnaphalium chilense]
                                                   [Gnaphalium sprengelii]
                                             Pseudognaphalium nubicola
                                                   [Gnaphalium nubicola]
                                             Pseudognaphalium obtusifolium
                                                   [Gnaphalium obtusifolium]
                                             Pseudognaphalium oligandrum
                                             Pseudognaphalium oxyphyllum
                                                   [Gnaphalium oxyphyllum]
                                             Pseudognaphalium pringlei
                                                   [Gnaphalium pringlei]
                                             Pseudognaphalium priscum
                                             Pseudognaphalium ramosissimum
                                                   [Gnaphalium ramosissimum]
                                             Pseudognaphalium rebmanii
                                             Pseudognaphalium roseum
                                                   [Gnaphalium roseum]
                                             Pseudognaphalium semiamplexicaule
                                                   [Gnaphalium semiamplexicaule]
                                             Pseudognaphalium semilanatum
                                             Pseudognaphalium stramineum
                                                   [Gnaphalium chilense]
                                                   [Gnaphalium stramineum]
                                             Pseudognaphalium sylvicola
                                                   [Gnaphalium attenuatum var. sylvicola]
                                             Pseudognaphalium thermale
                                                   [Gnaphalium canescens subsp. thermale]
                                                   [Gnaphalium microcephalum subsp. thermale]
                                                   [Gnaphalium microcephalum var. thermale]
                                                   [Gnaphalium thermale]
                                                   [Pseudognaphalium canescens subsp. thermale]
                                                   [Pseudognaphalium microcephalum var. thermale]
                                             Pseudognaphalium undulatum
                                             Pseudognaphalium viravira
                                                   [Gnaphalium viravira]
                                             Pseudognaphalium viscosum
                                     Pseudogynoxys
                                             Pseudogynoxys chenopodioides
                                                   [Pseudogynoxys berlandieri]
                                                   [Senecio chenopodioides]
                                                   [Senecio confusus]
                                             Pseudogynoxys fragrans
                                             Pseudogynoxys haenkei
                                             Pseudogynoxys scabra
                                             Pseudogynoxys sonchoides
                                     Pseudokyrsteniopsis
                                     Psiadia
                                             Psiadia altissima
                                             Psiadia angustifolia
                                             Psiadia coarctata
                                             Psiadia glutinosa
                                             Psiadia leucophylla
                                                   [Vernonia leucophylla]
                                             Psiadia punctulata
                                             Psiadia serrata
                                     Psilactis
                                             Psilactis asteroides
                                                   [Machaeranthera boltoniae]
                                             Psilactis brevilingulata
                                                   [Aster brevilingulatus]
                                             Psilactis gentryi
                                                   [Machaeranthera mexicana]
                                             Psilactis heterocarpa
                                                   [Machaeranthera heterocarpa]
                                             Psilactis tenuis
                                                   [Machaeranthera tenuis]
                                     Psilocarphus
                                             Psilocarphus brevissimus
                                               Psilocarphus brevissimus var. brevissimus
                                                     [Psilocarphus globifer]
                                                     [Psilocarphus oregonus var. brevissimus]
                                               Psilocarphus brevissimus var. multiflorus
                                             Psilocarphus chilensis
                                                   [Bezanilla chilensis]
                                                   [Micropus globiferus]
                                                   [Psilocarphus globiferus]
                                                   [Psilocarphus tenellus var. globiferus]
                                                   [Psilocarphus tenellus var. tenuis]
                                                   [Psilocarphus tenuis]
                                             Psilocarphus elatior
                                                   [Psilocarphus oregonus var. elatior]
                                             Psilocarphus oregonus
                                             Psilocarphus tenellus
                                                   [Psilocarphus tenellus var. tenellus]
                                     Psilochenia
                                     Psilostrophe
                                             Psilostrophe bakeri
                                             Psilostrophe cooperi
                                                   [Riddellia cooperi]
                                             Psilostrophe gnaphalioides
                                                   [Riddellia arachnoidea]
                                               Psilostrophe gnaphalioides var. mexicana
                                                     [Psilostrophe mexicana]
                                             Psilostrophe sparsiflora
                                             Psilostrophe tagetina
                                                   [Psilostrophe tagetina var. lanata]
                                                   [Riddellia tagetina var. pumila]
                                                   [Riddellia tagetina]
                                               Psilostrophe tagetina var. tagetina
                                             Psilostrophe villosa
                                                   [Psilostrophe tagetina var. cerifera]
                                     Pterocaulon
                                             Pterocaulon polystachyum
                                             Pterocaulon pycnostachyum
                                                   [Pterocaulon undulatum]
                                             Pterocaulon redolens
                                                   [Gnaphalium polycephalum]
                                             Pterocaulon sphacelatum
                                             Pterocaulon sphaeranthoides
                                             Pterocaulon virgatum
                                     Pteronia
                                             Pteronia camphorata
                                             Pteronia divaricata
                                             Pteronia incana
                                     Ptilepida
                                     Ptilocalais
                                     Ptilomeris
                                     Ptilonella
                                     Ptilophora
                                     Ptiloria
                                     Pugiopappus
                                     Pulicaria
                                             Pulicaria arabica
                                               Pulicaria arabica subsp. arabica
                                             Pulicaria dysenterica
                                             Pulicaria inuloides
                                             Pulicaria paludosa
                                                   [Pulicaria hispanica]
                                     Pycnosorus
                                             Pycnosorus globosus
                                             Pycnosorus pleiocephalus
                                     Pyrethrum
                                     Pyrrhopappus
                                             Pyrrhopappus carolinianus
                                                   [Sitilias carolinianus]
                                             Pyrrhopappus grandiflorus
                                                   [Sitilias grandiflora]
                                             Pyrrhopappus pauciflorus
                                                   [Pyrrhopappus multicaulis]
                                                   [Sitilias multicaulis]
                                             Pyrrhopappus rothrockii
                                     Pyrrocoma
                                             Pyrrocoma apargioides
                                                   [Aster apargioides]
                                                   [Haplopappus apargioides]
                                                   [Pyrrocoma demissa]
                                             Pyrrocoma balsamitae
                                             Pyrrocoma carthamoides
                                                   [Haplopappus carthamoides]
                                               Pyrrocoma carthamoides var. carthamoides
                                               Pyrrocoma carthamoides var. cusickii
                                                     [Haplopappus carthamoides subsp. cusickii]
                                                     [Haplopappus carthamoides var. cusickii]
                                                     [Hoorebekia carthamoides subsp. cusickii]
                                             Pyrrocoma clementis
                                             Pyrrocoma crocea
                                                   [Haplopappus croceus]
                                               Pyrrocoma crocea var. crocea
                                               Pyrrocoma crocea var. genuflexus
                                                     [Pyrrocoma genuflexa]
                                             Pyrrocoma cuspidata
                                             Pyrrocoma hirta
                                                   [Haplopappus hirtus]
                                                   [Hoorebekia hirta]
                                               Pyrrocoma hirta var. hirta
                                                     [Haplopappus hirtus subsp. hirtus]
                                               Pyrrocoma hirta var. lanulosa
                                                     [Haplopappus hirtus subsp. lanulosus]
                                                     [Haplopappus hirtus var. lanulosus]
                                                     [Pyrrocoma lanulosa]
                                               Pyrrocoma hirta var. sonchifolia
                                             Pyrrocoma integrifolia
                                                   [Haplopappus integrifolius]
                                             Pyrrocoma kennedyi
                                             Pyrrocoma lanceolata
                                                   [Donia lanceolata]
                                                   [Haplopappus lanceolatus var. strictus]
                                                   [Haplopappus lanceolatus var. sublanatus]
                                                   [Haplopappus lanceolatus var. tenuicaulis]
                                                   [Haplopappus lanceolatus]
                                                   [Haplopappus tenuicaulis]
                                                   [Hoorebekia lanceolata]
                                               Pyrrocoma lanceolata subsp. lanceolata
                                               Pyrrocoma lanceolata var. lanceolata
                                                     [Haplopappus lanceolatus subsp. tenuicaulis]
                                                     [Haplopappus lanceolatus]
                                                     [Hoorebekia lanceolata]
                                               Pyrrocoma lanceolata var. subviscosa
                                                     [Haplopappus lanceolatus subsp. subviscosus]
                                             Pyrrocoma liatriformis
                                             Pyrrocoma linearis
                                             Pyrrocoma lucida
                                                   [Haplopappus lucidus]
                                                   [Haplopappus racemosus subsp. lucidus]
                                             Pyrrocoma microdonta
                                             Pyrrocoma racemosa
                                                   [Haplopappus racemosus]
                                                   [Homopappus racemosus]
                                                   [Hoorebekia racemosa]
                                                   [Pyrrocoma arguta]
                                               Pyrrocoma racemosa var. congesta
                                                     [Haplopappus racemosus subsp. congestus]
                                                     [Pyrrocoma congesta]
                                               Pyrrocoma racemosa var. paniculata
                                                     [Haplopappus paniculatus var. stenocephalus]
                                                     [Haplopappus racemosus subsp. glomeratus]
                                                     [Homopappus glomeratus]
                                                     [Homopappus paniculatus]
                                                     [Pyrrocoma brachycephala]
                                                     [Pyrrocoma duriuscula]
                                                     [Pyrrocoma halophila]
                                                     [Pyrrocoma prionophylla]
                                               Pyrrocoma racemosa var. pinetorum
                                                     [Haplopappus racemosus subsp. pinetorum]
                                                     [Haplopappus racemosus var. pinetorum]
                                               Pyrrocoma racemosa var. racemosa
                                                     [Pyrrocoma elata]
                                                     [Pyrrocoma longifolia]
                                               Pyrrocoma racemosa var. sessiliflora
                                                     [Haplopappus racemosus subsp. sessiliflorus]
                                                     [Haplopappus racemosus var. sessiliflorus]
                                                     [Pyrrocoma sessiliflora]
                                             Pyrrocoma radiata
                                             Pyrrocoma rigida
                                             Pyrrocoma turbinella
                                             Pyrrocoma uniflora
                                                   [Aster uniflorus]
                                                   [Donia uniflora]
                                                   [Haplopappus howellii]
                                                   [Haplopappus uniflorus]
                                                   [Homopappus uniflorus]
                                                   [Hoorebekia uniflora]
                                                   [Pyrrocoma howellii]
                                               Pyrrocoma uniflora var. gossypina
                                                     [Haplopappus uniflorus subsp. gossypinus]
                                                     [Pyrrocoma gossypina]
                                               Pyrrocoma uniflora var. uniflora
                                     Quechualia
                                             Quechualia fulta
                                                   [Vernonia fulta]
                                             Quechualia trixioides
                                                   [Vernonia trixioides]
                                     Rafinesquia
                                             Rafinesquia californica
                                                   [Nemoseris californica]
                                             Rafinesquia neomexicana
                                                   [Nemoseris neomexicana]
                                     Raillardella
                                             Raillardella argentea
                                                   [Raillardella minima]
                                                   [Raillardia argentea]
                                                   [Railliardia argentea]
                                             Raillardella nevadensis
                                             Raillardella pringlei
                                             Raillardella scaposa
                                                   [Raillardia scaposa]
                                                   [Railliardia scaposa]
                                     Raillardia
                                     Raillardiopsis
                                     Rainiera
                                             Rainiera stricta
                                                   [Luina stricta]
                                     Ratibida
                                             Ratibida columnifera
                                                   [Lepachys columnaris]
                                                   [Lepachys columnifera]
                                                   [Ratibida columnaris var. pulcherrima]
                                                   [Ratibida columnaris]
                                                   [Ratibida columnifera f. pulcherrima]
                                                   [Rudbeckia columnifera]
                                               Ratibida columnifera var. pulcherrima
                                                     [Ratibida columnaris var. pulcherrima]
                                             Ratibida latipalearis
                                             Ratibida mexicana
                                                   [Lepachys mexicana]
                                             Ratibida peduncularis
                                             Ratibida pinnata
                                                   [Lepachys pinnata]
                                             Ratibida tagetes
                                     Rayjacksonia
                                             Rayjacksonia annua
                                                   [Machaeranthera annua]
                                             Rayjacksonia aurea
                                             Rayjacksonia phyllocephala
                                                   [Haplopappus rubiginosus]
                                     Reichardia
                                             Reichardia picroides
                                             Reichardia tingitana
                                     Relhania
                                     Remya
                                             Remya mauiensis
                                     Rensonia
                                             Rensonia salvadorica
                                     Revealia
                                     Rhagadiolus
                                             Rhagadiolus stellatus
                                                   [Lapsana stellata]
                                     Rhaponticoides
                                             Rhaponticoides alpina
                                                   [Centaurea linaresii]
                                     Rhaponticum
                                             Rhaponticum repens
                                                   [Acroptilon repens]
                                                   [Centaurea repens]
                                             Rhaponticum uniflorum
                                               Rhaponticum uniflorum subsp. uniflorum
                                                     [Centaurea monanthos]
                                     Rhodanthe
                                             Rhodanthe anthemoides
                                                   [Helipterum anthemoides]
                                             Rhodanthe charsleyae
                                             Rhodanthe chlorocephala
                                               Rhodanthe chlorocephala subsp. rosea
                                               Rhodanthe chlorocephala subsp. splendida
                                             Rhodanthe citrina
                                             Rhodanthe condensata
                                             Rhodanthe craspedioides
                                                   [Helipterum craspedioides]
                                             Rhodanthe floribunda
                                             Rhodanthe haigii
                                             Rhodanthe humboldtiana
                                             Rhodanthe manglesii
                                                   [Helipterum manglesii]
                                             Rhodanthe maryonii
                                             Rhodanthe nullarborensis
                                             Rhodanthe propinqua
                                             Rhodanthe sphaerocephala
                                             Rhodanthe sterilescens
                                             Rhodanthe stricta
                                     Rhysolepis
                                     Rhytidospermum
                                     Riddellia
                                     Rigiopappus
                                             Rigiopappus leptocladus
                                     Rojasianthe
                                             Rojasianthe superba
                                     Roldana
                                             Roldana acutangula
                                                   [Senecio acutangulus]
                                             Roldana albonervia
                                                   [Senecio albonervius]
                                             Roldana angulifolia
                                                   [Senecio angulifolius var. ingens]
                                                   [Senecio angulifolius]
                                             Roldana anisophylla
                                             Roldana aschenborniana
                                                   [Senecio aschenbornianus]
                                             Roldana barba-johannis
                                                   [Senecio barba-johannis]
                                             Roldana chapalensis
                                                   [Senecio chapalensis]
                                             Roldana cordovensis
                                             Roldana cristobalensis
                                                   [Roldana petasitis var. cristobalensis]
                                             Roldana ehrenbergiana
                                                   [Senecio semperamatae]
                                             Roldana eriophylla
                                             Roldana gentryi
                                             Roldana gilgii
                                             Roldana gonzaleziae
                                             Roldana greenmanii
                                             Roldana guadalajarensis
                                                   [Senecio guadalajarensis]
                                             Roldana hartwegii
                                                   [Cacalia tepicana]
                                                   [Senecio hartwegii]
                                                   [Senecio seemannii]
                                               Roldana hartwegii var. carlomasonii
                                                     [Roldana carlomasonii]
                                                     [Senecio carlomasonii]
                                               Roldana hartwegii var. subcymosa
                                                     [Roldana subcymosa]
                                             Roldana heterogama
                                             Roldana hirsuticaulis
                                                   [Senecio hirsuticaulis]
                                             Roldana jurgensenii
                                                   [Senecio jurgensenii]
                                             Roldana kerberi
                                                   [Senecio kerberi]
                                             Roldana lanicaulis
                                                   [Senecio lanicaulis]
                                             Roldana lineolata
                                                   [Senecio sinuatus]
                                             Roldana lobata
                                                   [Senecio roldana]
                                             Roldana metepecus
                                             Roldana mexicana
                                                   [Senecio mexicanus]
                                             Roldana michoacana
                                                   [Cacalia michoacana]
                                                   [Cacalia trigonophylla]
                                                   [Pericalia michoacana]
                                             Roldana oaxacana
                                                   [Roldana petasitis var. oaxacana]
                                                   [Senecio hederoides]
                                             Roldana petasitis
                                                   [Cineraria petasitis]
                                                   [Senecio petasitis]
                                               Roldana petasitis var. sartorii
                                             Roldana platanifolia
                                                   [Senecio platanifolius]
                                             Roldana reticulata
                                             Roldana riparia
                                             Roldana schaffneri
                                             Roldana sessilifolia
                                                   [Senecio sessilifolius]
                                             Roldana suffulta
                                                   [Cacalia suffulta]
                                                   [Senecio suffultus]
                                             Roldana uxordecora
                                     Rudbeckia
                                             Rudbeckia alpicola
                                             Rudbeckia amplexicaulis
                                                   [Dracopis amplexicaulis]
                                             Rudbeckia californica
                                                   [Rudbeckia californica var. californica]
                                               Rudbeckia californica var. californica
                                             Rudbeckia fulgida
                                               Rudbeckia fulgida var. fulgida
                                             Rudbeckia glaucescens
                                                   [Rudbeckia californica var. glauca]
                                             Rudbeckia graminifolia
                                             Rudbeckia grandiflora
                                             Rudbeckia hirta
                                               Rudbeckia hirta var. angustifolia
                                                     [Rudbeckia divergens]
                                               Rudbeckia hirta var. floridana
                                               Rudbeckia hirta var. hirta
                                               Rudbeckia hirta var. pulcherrima
                                             Rudbeckia klamathensis
                                                   [Rudbeckia californica var. intermedia]
                                             Rudbeckia laciniata
                                                   [Rudbeckia laciniata var. hortensia]
                                               Rudbeckia laciniata var. ampla
                                                     [Rudbeckia ampla]
                                             Rudbeckia maxima
                                             Rudbeckia missouriensis
                                             Rudbeckia mohrii
                                             Rudbeckia mollis
                                             Rudbeckia montana
                                                   [Rudbeckia occidentalis var. montana]
                                             Rudbeckia nitida
                                                   [Rudbeckia nitida var. longifolia]
                                             Rudbeckia occidentalis
                                                   [Rudbeckia occidentalis var. occidentalis]
                                               Rudbeckia occidentalis var. occidentalis
                                             Rudbeckia scabrifolia
                                             Rudbeckia speciosa
                                             Rudbeckia subtomentosa
                                             Rudbeckia sullivantii
                                                   [Rudbeckia fulgida var. sullivantii]
                                             Rudbeckia triloba
                                               Rudbeckia triloba var. pinnatiloba
                                     Rumfordia
                                             Rumfordia connata
                                             Rumfordia exauriculata
                                             Rumfordia floribunda
                                                   [Rumfordia floribunda var. australis]
                                                   [Rumfordia floribunda var. jaliscensis]
                                             Rumfordia guatemalensis
                                             Rumfordia penninervis
                                     Rutidosis
                                             Rutidosis helichrysoides
                                     Rydbergia
                                     Sabazia
                                             Sabazia breedlovei
                                             Sabazia durangensis
                                             Sabazia humilis
                                                   [Sabazia anomala]
                                             Sabazia lapsensis
                                             Sabazia macdonaldii
                                             Sabazia microspermoides
                                             Sabazia mullerae
                                             Sabazia multiradiata
                                                   [Calea multiradiata]
                                             Sabazia purpusii
                                             Sabazia sarmentosa
                                                   [Calea sabazioides]
                                     Salmea
                                             Salmea orthocephala
                                             Salmea scandens
                                     Sampera
                                             Sampera pichinchensis
                                                   [Oligactis pichinchensis]
                                     Santolina
                                             Santolina chamaecyparissus
                                             Santolina pectinata
                                             Santolina rosmarinifolia
                                             Santolina virens
                                                   [Santolina viridis]
                                             Santolina viscosa
                                     Sanvitalia
                                             Sanvitalia abertii
                                                   [Sanvitalia aberti]
                                             Sanvitalia angustifolia
                                             Sanvitalia fruticosa
                                             Sanvitalia ocymoides
                                             Sanvitalia procumbens
                                     Sartwellia
                                             Sartwellia flaveriae
                                                   [Sartwellia puberula]
                                             Sartwellia mexicana
                                     Saussurea
                                             Saussurea alpina
                                                   [Saussurea monticola]
                                             Saussurea americana
                                             Saussurea angustifolia
                                               Saussurea angustifolia subsp. angustifolia
                                               Saussurea angustifolia var. viscida
                                                     [Saussurea viscida]
                                               Saussurea angustifolia var. yukonensis
                                                     [Saussurea angustifolia subsp. yukonensis]
                                             Saussurea columnaris
                                             Saussurea discolor
                                             Saussurea euodonta
                                             Saussurea hylophila
                                             Saussurea involucrata
                                             Saussurea laniceps
                                             Saussurea leontodontoides
                                             Saussurea leucoma
                                             Saussurea limprichtii
                                             Saussurea luae
                                             Saussurea nuda
                                             Saussurea obvallata
                                             Saussurea pachyneura
                                             Saussurea picridifolia
                                                   [Diplazoptilon picridifolium]
                                             Saussurea scabrida
                                                   [Saussurea pseudoleontodon]
                                             Saussurea tanakae
                                             Saussurea taraxacifolia
                                             Saussurea tilesii
                                             Saussurea triangulata
                                             Saussurea umbrosa
                                                   [Saussurea karoi]
                                     Scabrethia
                                             Scabrethia scabra
                                               Scabrethia scabra subsp. canescens
                                                     [Wyethia scabra var. canescens]
                                               Scabrethia scabra subsp. scabra
                                                     [Wyethia scabra]
                                     Scalesia
                                             Scalesia affinis
                                               Scalesia affinis subsp. gummifera
                                                     [Scalesia narbonensis]
                                             Scalesia aspera
                                             Scalesia atractyloides
                                               Scalesia atractyloides var. atractyloides
                                               Scalesia atractyloides var. darwinii
                                             Scalesia baurii
                                               Scalesia baurii subsp. hopkinsii
                                                     [Scalesia hopkinsii]
                                             Scalesia cordata
                                             Scalesia crockeri
                                             Scalesia divisa
                                             Scalesia gordilloi
                                             Scalesia helleri
                                             Scalesia incisa
                                                   [Scalesia snodgrassii]
                                             Scalesia microcephala
                                             Scalesia pedunculata
                                                   [Scalesia pedunculata var. indurata]
                                                   [Scalesia pedunculata var. parviflora]
                                             Scalesia retroflexa
                                             Scalesia stewartii
                                             Scalesia villosa
                                                   [Scalesia villosa var. championensis]
                                     Schistocarpha
                                             Schistocarpha bicolor
                                             Schistocarpha calzadana
                                             Schistocarpha eupatorioides
                                             Schistocarpha longiligula
                                             Schistocarpha matudae
                                             Schistocarpha pedicellata
                                             Schistocarpha platyphylla
                                     Schkuhria
                                             Schkuhria pinnata
                                                   [Schkuhria anthemoidea f. flava]
                                                   [Schkuhria anthemoidea var. anthemoidea]
                                                   [Schkuhria anthemoidea var. wrightii]
                                                   [Schkuhria anthemoidea]
                                                   [Schkuhria pringlei]
                                               Schkuhria pinnata var. pinnata
                                               Schkuhria pinnata var. wislizenii
                                                     [Schkuhria anthemoidea var. wislizenii]
                                                     [Schkuhria pinnata var. guatemalensis]
                                                     [Schkuhria pinnata var. virgata]
                                                     [Schkuhria virgata]
                                                     [Schkuhria wislizeni var. frustrata]
                                                     [Schkuhria wislizeni var. wrightii]
                                                     [Schkuhria wislizenii]
                                                     [Schkuhria wrightii]
                                             Schkuhria schkuhrioides
                                                   [Bahia schkuhrioides]
                                             Schkuhria wislizeni
                                     Schlagintweitia
                                             Schlagintweitia intybacea
                                                   [Hieracium intybaceum]
                                     Sciadocephala
                                             Sciadocephala dressleri
                                     Sclerocarpus
                                             Sclerocarpus africanus
                                             Sclerocarpus divaricatus
                                                   [Sclerocarpus triunfonis]
                                             Sclerocarpus papposus
                                             Sclerocarpus phyllocephalus
                                             Sclerocarpus sessilifolius
                                             Sclerocarpus spatulatus
                                             Sclerocarpus uniserialis
                                               Sclerocarpus uniserialis var. frutescens
                                                     [Sclerocarpus frutescens]
                                               Sclerocarpus uniserialis var. uniserialis
                                     Sclerolepis
                                             Sclerolepis uniflora
                                     Scolymus
                                             Scolymus hispanicus
                                             Scolymus maculatus
                                     Scorzonella
                                     Scorzonera
                                             Scorzonera calcitrapifolia
                                             Scorzonera hispanica
                                     Scorzoneroides
                                             Scorzoneroides autumnalis
                                               Scorzoneroides autumnalis subsp. autumnalis
                                                     [Leontodon autumnale]
                                                     [Leontodon autumnalis var. coronopifolius]
                                                     [Leontodon autumnalis]
                                             Scorzoneroides muelleri
                                               Scorzoneroides muelleri subsp. muelleri
                                                     [Leontodon muelleri]
                                     Selloa
                                     Senecio
                                           [Cineraria]
                                             Senecio abrotanifolius
                                             Senecio acerifolius
                                             Senecio adenotrichius
                                             Senecio alpinus
                                             Senecio alvarezensis
                                             Senecio ambrosioides
                                             Senecio ammophilus
                                             Senecio amplectens
                                               Senecio amplectens var. holmii
                                             Senecio ampullaceus
                                             Senecio andersonii
                                             Senecio angulatus
                                             Senecio angustifolius
                                                   [Jacobaea angustifolia]
                                             Senecio aphanactis
                                                   [Senecio cymbalarioides var. aphanactis]
                                             Senecio arenarius
                                             Senecio argutus
                                             Senecio arizonicus
                                             Senecio aronicoides
                                             Senecio astephanus
                                             Senecio atratus
                                             Senecio barbatus
                                             Senecio bigelovii
                                                   [Senecio rusbyi]
                                               Senecio bigelovii var. bigelovii
                                               Senecio bigelovii var. hallii
                                             Senecio billieturneri
                                             Senecio blochmaniae
                                                   [Senecio blochmanae]
                                             Senecio bombayensis
                                                   [Senecio reticulatus]
                                             Senecio bracteatus
                                             Senecio brasiliensis
                                             Senecio bupleuroides
                                             Senecio cacaliaster
                                             Senecio californicus
                                                   [Senecio californicus var. ammophilus]
                                                   [Senecio coronopus]
                                               Senecio californicus var. californicus
                                             Senecio callosus
                                             Senecio canaliculatus
                                             Senecio cedrorum
                                             Senecio cedrosensis
                                             Senecio chihuahuensis
                                             Senecio chilensis
                                             Senecio chionophilus
                                             Senecio chrysanthemoides
                                             Senecio cinerarioides
                                             Senecio cinerascens
                                             Senecio clarkianus
                                             Senecio comosus
                                             Senecio compactus
                                             Senecio conzattii
                                             Senecio coronatus
                                             Senecio crassiflorus
                                             Senecio crassissimus
                                             Senecio crassulus
                                             Senecio ctenophyllus
                                             Senecio cuneatus
                                             Senecio darwinii
                                             Senecio decaryi
                                             Senecio densiflorus
                                             Senecio deppeanus
                                             Senecio doratophyllus
                                             Senecio doria
                                             Senecio doronicum
                                             Senecio elegans
                                             Senecio elmeri
                                             Senecio elquiensis
                                             Senecio emirnensis
                                             Senecio eremophilus
                                               Senecio eremophilus var. kingii
                                               Senecio eremophilus var. macdougalii
                                                     [Senecio macdougalii]
                                             Senecio ertterae
                                             Senecio erubescens
                                               Senecio erubescens var. dichotomus
                                             Senecio erucifolius
                                             Senecio filaginoides
                                             Senecio flaccidus
                                                   [Senecio douglasii var. jamesii]
                                                   [Senecio douglasii var. longilobus]
                                                   [Senecio longilobus]
                                               Senecio flaccidus var. douglasii
                                                     [Senecio douglasii var. douglasii]
                                                     [Senecio douglasii var. tularensis]
                                                     [Senecio douglasii]
                                               Senecio flaccidus var. durangensis
                                                     [Senecio durangensis var. atrapiculatus]
                                                     [Senecio durangensis]
                                               Senecio flaccidus var. flaccidus
                                               Senecio flaccidus var. monoensis
                                                     [Senecio douglasii var. monoensis]
                                                     [Senecio monoensis]
                                             Senecio floccosus
                                             Senecio fodinarum
                                             Senecio francoisii
                                             Senecio fremontii
                                                   [Senecio occidentalis]
                                                   [Senecio spartioides var. fremontii]
                                               Senecio fremontii var. blitoides
                                                     [Senecio carthamoides]
                                               Senecio fremontii var. fremontii
                                                     [Senecio fremontii subsp. fremontii]
                                               Senecio fremontii var. occidentalis
                                                     [Senecio fremontii subsp. occidentalis]
                                             Senecio glaberrimus
                                             Senecio glabratus
                                             Senecio glanduloso-pilosus
                                                   [Senecio leontodontis]
                                             Senecio glastifolius
                                             Senecio glomeratus
                                                   [Erechtites arguta]
                                                   [Erechtites glomerata subsp. glomerata]
                                                   [Erechtites glomerata]
                                                   [Erechtites glomeratus]
                                               Senecio glomeratus subsp. glomeratus
                                                     [Erechtites argutus]
                                             Senecio godmanii
                                             Senecio goldmanii
                                             Senecio gossypinus
                                             Senecio hamersleyensis
                                             Senecio helodes
                                             Senecio hildebrandtii
                                             Senecio hydrophiloides
                                                   [Senecio foetidus var. hydrophiloides]
                                                   [Senecio foetidus]
                                             Senecio hydrophilus
                                                   [Senecio hydrophilus var. pacificus]
                                             Senecio hygrophilus
                                             Senecio hypoleucus
                                             Senecio inaequidens
                                             Senecio inexpectatus
                                             Senecio integerrimus
                                               Senecio integerrimus var. exaltatus
                                                     [Senecio columbianus]
                                                     [Senecio exaltatus]
                                                     [Senecio integerrimus var. vaseyi]
                                                     [Senecio lugens var. exaltatus]
                                               Senecio integerrimus var. integerrimus
                                               Senecio integerrimus var. major
                                                     [Senecio caulanthifolius]
                                                     [Senecio eurycephalus var. major]
                                                     [Senecio lugens var. megacephalus]
                                                     [Senecio major]
                                                     [Senecio mendocinensis]
                                                     [Senecio whippleanus]
                                               Senecio integerrimus var. ochroleucus
                                                     [Senecio lugens var. ochroleucus]
                                             Senecio jacalensis
                                                   [Senecio rzedowskii]
                                             Senecio jacobaea
                                                   [Jacobaea vulgaris]
                                             Senecio kotschyanus
                                             Senecio lacustrinus
                                             Senecio latifolius
                                             Senecio lautus
                                             Senecio lemmonii
                                             Senecio leucanthemifolius
                                             Senecio leucomallus
                                             Senecio leucostachys
                                             Senecio linearifolius
                                               Senecio linearifolius var. linearifolius
                                             Senecio lugens
                                                   [Senecio lugens var. blaisdellii]
                                             Senecio lyonii
                                                   [Senecio lyoni]
                                             Senecio lyratus
                                                   [Senecio masonii]
                                             Senecio macrocephalus
                                             Senecio macrospermus
                                             Senecio madagascariensis
                                             Senecio magnificus
                                             Senecio mairetianus
                                             Senecio martirensis
                                             Senecio mbuluzensis
                                             Senecio megacephalus
                                             Senecio mesadenia
                                             Senecio mesembryanthemoides
                                             Senecio meuselii
                                             Senecio microphyllus
                                             Senecio minimus
                                                   [Erechtites minima]
                                                   [Erechtites minimus]
                                             Senecio mitophyllus
                                                   [Senecio filifolius]
                                             Senecio mohavensis
                                             Senecio morrisonensis
                                               Senecio morrisonensis var. dentatus
                                             Senecio multidentatus
                                               Senecio multidentatus var. huachucanus
                                                     [Senecio huachucanus]
                                             Senecio murorum
                                             Senecio nemorensis
                                             Senecio neowebsteri
                                             Senecio nigrocinctus
                                             Senecio oerstedianus
                                             Senecio otites
                                             Senecio ovatus
                                               Senecio ovatus subsp. ovatus
                                                     [Senecio fuchsii]
                                             Senecio oxyriifolius
                                             Senecio panduratus
                                             Senecio parryi
                                             Senecio parvifolius
                                             Senecio pattersonensis
                                                   [Senecio revolutus]
                                             Senecio picridis
                                             Senecio pinacatensis
                                             Senecio pinnatifidus
                                             Senecio pinnatifolius
                                               Senecio pinnatifolius var. alpinus
                                             Senecio piptocoma
                                             Senecio platensis
                                             Senecio platypus
                                             Senecio polyanthemoides
                                             Senecio polyodon
                                               Senecio polyodon var. polyodon
                                             Senecio prionophyllus
                                             Senecio prionopterus
                                             Senecio provincialis
                                                   [Senecio gerardii]
                                             Senecio pseudalmeidae
                                             Senecio pudicus
                                             Senecio purtschelleri
                                             Senecio quadridentatus
                                                   [Erechtites quadridentata]
                                                   [Erechtites quadridentatus]
                                             Senecio quaylei
                                             Senecio radiolatus
                                               Senecio radiolatus subsp. antipodus
                                                     [Senecio antipodus]
                                             Senecio rapifolius
                                             Senecio rhyncholaenus
                                             Senecio richardsonii
                                             Senecio riddellii
                                             Senecio rigidus
                                             Senecio roseus
                                             Senecio sacramentanus
                                             Senecio sandersii
                                             Senecio scandens
                                               Senecio scandens var. incisus
                                             Senecio scitus
                                             Senecio scorzonella
                                                   [Senecio covillei var. scorzonella]
                                                   [Senecio covillei]
                                             Senecio seminivea
                                             Senecio serra
                                                   [Senecio millikenii]
                                               Senecio serra var. admirabilis
                                               Senecio serra var. serra
                                             Senecio sinuatilobus
                                             Senecio smithii
                                             Senecio sociorum
                                             Senecio soldanella
                                             Senecio spanomerus
                                                   [Senecio lautus subsp. dissectifolius]
                                             Senecio spartioides
                                                   [Senecio multicapitatus]
                                                   [Senecio serra var. sanctus]
                                                   [Senecio spartioides var. granularis]
                                                   [Senecio spartioides var. multicapitatus]
                                                   [Senecio spartioides var. spartioides]
                                                   [Senecio toiyabensis]
                                               Senecio spartioides var. spartioides
                                             Senecio sphaerocephalus
                                             Senecio squalidus
                                             Senecio stoechadiformis
                                             Senecio subvestitus
                                             Senecio sylvaticus
                                             Senecio tomentosus
                                             Senecio torrehuasensis
                                             Senecio triangularis
                                                   [Senecio triangularis var. angustifolius]
                                               Senecio triangularis var. triangularis
                                             Senecio tricephalus
                                             Senecio tricuspidatus
                                             Senecio triodontiphyllus
                                             Senecio uintahensis
                                             Senecio umbrosus
                                             Senecio uspallatensis
                                             Senecio velleioides
                                             Senecio venosus
                                             Senecio vernalis
                                             Senecio viejoanus
                                             Senecio viravira
                                                   [Senecio argentinus]
                                             Senecio viscosus
                                             Senecio vulgaris
                                             Senecio warnockii
                                             Senecio warszewiczii
                                             Senecio wightii
                                             Senecio wootonii
                                     Sericocarpus
                                             Sericocarpus asteroides
                                                   [Aster paternus]
                                                   [Sericocarpus conyzoides]
                                             Sericocarpus linifolius
                                             Sericocarpus oregonensis
                                                   [Aster oregonensis]
                                               Sericocarpus oregonensis subsp. californicus
                                                     [Aster oregonensis subsp. californicus]
                                                     [Sericocarpus oregonensis var. californicus]
                                                     [Sericocarpus rigidus var. californicus]
                                               Sericocarpus oregonensis subsp. oregonensis
                                                     [Aster oregonensis subsp. oregonensis]
                                                     [Sericocarpus oregonensis var. oregonensis]
                                             Sericocarpus rigidus
                                             Sericocarpus sipei
                                             Sericocarpus tortifolius
                                                   [Aster tortifolius]
                                                   [Sericocarpus bifoliatus]
                                     Serinia
                                     Seriphidium
                                             Seriphidium aucheri
                                                   [Artemisia aucheri]
                                             Seriphidium canum
                                     Serratula
                                             Serratula tinctoria
                                     Shangwua
                                             Shangwua denticulata
                                                   [Saussurea forrestii]
                                     Shinnersia
                                             Shinnersia rivularis
                                     Sideranthus
                                     Sidneya
                                             Sidneya pinnatilobata
                                                   [Viguiera pinnatilobata]
                                               Sidneya pinnatilobata var. megaphylla
                                                     [Viguiera pinnatilobata var. megaphylla]
                                             Sidneya tenuifolia
                                                   [Viguiera stenoloba var. chihuahuensis]
                                                   [Viguiera stenoloba]
                                     Sigesbeckia
                                             Sigesbeckia agrestis
                                             Sigesbeckia glabrescens
                                             Sigesbeckia jorullensis
                                             Sigesbeckia orientalis
                                             Sigesbeckia pubescens
                                             Sigesbeckia repens
                                     Siloxerus
                                             Siloxerus humifusus
                                                   [Angianthus humifusus]
                                             Siloxerus tomentosus
                                                   [Angianthus tomentosus]
                                     Silphium
                                             Silphium albiflorum
                                             Silphium asteriscus
                                               Silphium asteriscus subsp. asteriscus
                                                     [Silphium asteriscus var. scabrum]
                                                     [Silphium scaberrimum]
                                               Silphium asteriscus var. asteriscus
                                               Silphium asteriscus var. dentatum
                                                     [Silphium asteriscus var. angustatum]
                                                     [Silphium asteriscus var. laevicaule]
                                               Silphium asteriscus var. trifoliatum
                                                     [Silphium trifoliatum]
                                             Silphium compositum
                                             Silphium integrifolium
                                               Silphium integrifolium var. asperrimum
                                               Silphium integrifolium var. integrifolium
                                               Silphium integrifolium var. laeve
                                             Silphium laciniatum
                                             Silphium perfoliatum
                                             Silphium radula
                                               Silphium radula var. radula
                                             Silphium terebinthinaceum
                                     Silybum
                                             Silybum marianum
                                                   [Carduus marianus]
                                                   [Mariana mariana]
                                     Simsia
                                             Simsia amplexicaulis
                                             Simsia annectens
                                               Simsia annectens var. annectens
                                               Simsia annectens var. grayi
                                                     [Simsia grayi]
                                             Simsia calva
                                                   [Encelia calva]
                                                   [Encelia subaristata]
                                             Simsia chaseae
                                             Simsia cronquistii
                                             Simsia dombeyana
                                             Simsia eurylepis
                                                   [Simsia submollicoma]
                                             Simsia foetida
                                             Simsia fruticulosa
                                             Simsia ghiesbreghtii
                                             Simsia hintonii
                                             Simsia lagascaeformis
                                                   [Simsia exaristata]
                                                   [Simsia lagasceiformis]
                                                   [Simsia lagasciformis]
                                             Simsia molinae
                                             Simsia ovata
                                                   [Viguiera ovata]
                                             Simsia rhombifolia
                                                   [Encelia rhombifolia]
                                             Simsia sanguinea
                                                   [Aspilia grosseserrata]
                                                   [Simsia triloba]
                                             Simsia santarosensis
                                             Simsia setosa
                                             Simsia subsetosa
                                             Simsia sylvicola
                                             Simsia tenuis
                                                   [Encelia tenuis]
                                             Simsia villasenorii
                                     Sinclairia
                                             Sinclairia andrieuxii
                                                   [Liabum andrieuxii]
                                             Sinclairia caducifolia
                                                   [Liabum caducifolium]
                                             Sinclairia deamii
                                             Sinclairia dimidia
                                             Sinclairia discolor
                                             Sinclairia glabra
                                                   [Liabum glabrum]
                                                   [Liabum sublobatum]
                                               Sinclairia glabra var. hypoleuca
                                                     [Liabum glabrum var. hypoleucum]
                                             Sinclairia hypochlora
                                             Sinclairia ismaelis
                                             Sinclairia klattii
                                             Sinclairia palmeri
                                                   [Liabum palmeri]
                                             Sinclairia platylepis
                                             Sinclairia polyantha
                                             Sinclairia pringlei
                                                   [Liabum pringlei]
                                             Sinclairia sericolepis
                                             Sinclairia vagans
                                     Sinosenecio
                                             Sinosenecio euosmus
                                             Sinosenecio oldhamianus
                                                   [Senecio oldhamianus]
                                     Sitilias
                                     Smallanthus
                                             Smallanthus connatus
                                                   [Polymnia connata]
                                             Smallanthus maculatus
                                                   [Polymnia maculata]
                                             Smallanthus mcvaughii
                                                   [Polymnia mcvaughii]
                                             Smallanthus oaxacanus
                                             Smallanthus riparius
                                             Smallanthus sonchifolius
                                                   [Polymnia edulis]
                                             Smallanthus uvedalia
                                                   [Polymnia uvedalia]
                                     Solidago
                                             Solidago aestivalis
                                                   [Solidago rugosa var. sphagnophila]
                                             Solidago albopilosa
                                             Solidago altiplanities
                                             Solidago altissima
                                                   [Solidago altissima var. pluricephala]
                                               Solidago altissima subsp. altissima
                                                     [Solidago altissima var. altissima]
                                                     [Solidago canadensis var. scabra]
                                               Solidago altissima subsp. gilvocanescens
                                                     [Solidago canadensis var. gilvocanescens]
                                               Solidago altissima var. gilvocanescens
                                             Solidago arenicola
                                             Solidago arguta
                                               Solidago arguta var. boottii
                                                     [Solidago boottii]
                                             Solidago arizonica
                                             Solidago auriculata
                                             Solidago bicolor
                                             Solidago brachyphylla
                                             Solidago caesia
                                             Solidago canadensis
                                               Solidago canadensis var. canadensis
                                             Solidago chilensis
                                             Solidago confertiflora
                                             Solidago confinis
                                                   [Solidago spectabilis var. confinis]
                                             Solidago curtisii
                                             Solidago delicatula
                                             Solidago drummondii
                                             Solidago elongata
                                                   [Aster elongatus]
                                                   [Solidago canadensis subsp. elongata]
                                                   [Solidago canadensis var. elongata]
                                                   [Solidago lepida var. elongata]
                                             Solidago erecta
                                                   [Solidago speciosa var. erecta]
                                             Solidago fallax
                                                   [Solidago elongata var. fallax]
                                                   [Solidago lepida var. fallax]
                                             Solidago fistulosa
                                             Solidago flexicaulis
                                             Solidago garrettii
                                                   [Solidago canadensis var. arizonica]
                                             Solidago gigantea
                                                   [Solidago gigantea subsp. serotina]
                                                   [Solidago gigantea var. leiophylla]
                                                   [Solidago gigantea var. serotina]
                                                   [Solidago pitcheri]
                                                   [Solidago serotina var. gigantea]
                                                   [Solidago serotina]
                                             Solidago gillmani
                                             Solidago glomerata
                                             Solidago glutinosa
                                                   [Solidago neomexicana]
                                             Solidago guiradonis
                                                   [Aster guiradonis]
                                                   [Solidago guiradonis var. guiradonis]
                                             Solidago hintoniorum
                                             Solidago hispida
                                             Solidago jejunifolia
                                                   [Solidago speciosa var. jejunifolia]
                                             Solidago juliae
                                             Solidago juncea
                                             Solidago lanceolata
                                             Solidago latissimifolia
                                                   [Solidago elliottii]
                                             Solidago leavenworthii
                                             Solidago lepida
                                                   [Solidago canadensis var. lepida]
                                                   [Solidago canadensis var. subserrata]
                                                   [Solidago lepida f. glandulosa]
                                               Solidago lepida var. lepida
                                               Solidago lepida var. salebrosa
                                                     [Solidago canadensis subsp. salebrosa]
                                                     [Solidago canadensis var. salebrosa]
                                                     [Solidago salebrosa]
                                             Solidago ludoviciana
                                             Solidago macrophylla
                                             Solidago mexicana
                                                   [Solidago petiolata]
                                             Solidago missouriensis
                                                   [Aster missouriensis]
                                                   [Solidago glaberrima]
                                                   [Solidago hapemaniana]
                                                   [Solidago missouriensis var. fasciculata]
                                                   [Solidago missouriensis var. missouriensis]
                                                   [Solidago missouriensis var. tenuissima]
                                                   [Solidago tolmieana]
                                             Solidago mollis
                                             Solidago multiradiata
                                                   [Aster multiradiatus]
                                                   [Solidago multiradiata var. scopulorum]
                                                   [Solidago virgaurea var. multiradiata]
                                               Solidago multiradiata subsp. multiradiata
                                                     [Solidago algida]
                                                     [Solidago ciliosa]
                                                     [Solidago corymbosa]
                                                     [Solidago cusickii]
                                                     [Solidago multiradiata var. scopulorum]
                                               Solidago multiradiata var. multiradiata
                                             Solidago nana
                                             Solidago nemoralis
                                               Solidago nemoralis subsp. decemflora
                                                     [Solidago longipetiolata]
                                                     [Solidago nemoralis var. decemflora]
                                                     [Solidago nemoralis var. longipetiolata]
                                                     [Solidago pulcherrima]
                                             Solidago nitida
                                             Solidago odora
                                                   [Solidago suaveolens]
                                             Solidago ohioensis
                                             Solidago pallida
                                                   [Solidago speciosa var. pallida]
                                             Solidago patula
                                               Solidago patula subsp. strictula
                                                     [Solidago patula var. strictula]
                                             Solidago petiolaris
                                                   [Solidago lindheimeriana]
                                               Solidago petiolaris var. angusta
                                               Solidago petiolaris var. petiolaris
                                             Solidago pinetorum
                                             Solidago ptarmicoides
                                                   [Aster ptarmicoides]
                                                   [Oligoneuron album]
                                                   [Unamia alba]
                                             Solidago puberula
                                             Solidago pulverulenta
                                             Solidago pumila
                                             Solidago radula
                                                   [Solidago pendula]
                                             Solidago riddellii
                                                   [Oligoneuron riddellii]
                                             Solidago rigida
                                               Solidago rigida subsp. glabrata
                                               Solidago rigida subsp. humilis
                                                     [Solidago rigida var. humilis]
                                               Solidago rigida subsp. rigida
                                                     [Solidago asperula]
                                               Solidago rigida var. rigida
                                             Solidago rigidiuscula
                                                   [Solidago speciosa var. angustata]
                                                   [Solidago speciosa var. rigidiuscula]
                                             Solidago roanensis
                                                   [Solidago roanensis var. monticola]
                                             Solidago rugosa
                                               Solidago rugosa var. aspera
                                                     [Solidago aspera]
                                               Solidago rugosa var. celtidifolia
                                               Solidago rugosa var. rugosa
                                             Solidago sempervirens
                                             Solidago shortii
                                             Solidago simplex
                                                   [Solidago decumbens]
                                                   [Solidago spathulata var. neomexicana]
                                               Solidago simplex var. nana
                                                     [Solidago spathulata var. nana]
                                               Solidago simplex var. racemosa
                                                     [Solidago racemosa]
                                               Solidago simplex var. simplex
                                             Solidago spathulata
                                                   [Homopappus spathulatus]
                                                   [Solidago simplex subsp. simplex]
                                                   [Solidago simplex var. spathulata]
                                                   [Solidago simplex]
                                                   [Solidago spathulata subsp. spathulata]
                                               Solidago spathulata var. spathulata
                                             Solidago speciosa
                                               Solidago speciosa var. speciosa
                                             Solidago spectabilis
                                                   [Solidago guiradonis var. spectabilis]
                                                   [Solidago spectabilis var. spectabilis]
                                               Solidago spectabilis var. spectabilis
                                             Solidago sphacelata
                                             Solidago squarrosa
                                             Solidago stricta
                                             Solidago tarda
                                             Solidago tortifolia
                                             Solidago uliginosa
                                                   [Solidago uliginosa var. linoides]
                                                   [Solidago uniligulata]
                                               Solidago uliginosa var. uliginosa
                                             Solidago ulmifolia
                                             Solidago velutina
                                                   [Aster velutinus]
                                               Solidago velutina subsp. californica
                                                     [Aster californicus]
                                                     [Solidago californica var. californica]
                                                     [Solidago californica]
                                                     [Solidago velutina var. californica]
                                               Solidago velutina subsp. sparsiflora
                                                     [Aster sparsiflorus]
                                                     [Solidago californica var. nevadensis]
                                                     [Solidago sparsiflora]
                                                     [Solidago trinervata]
                                               Solidago velutina subsp. velutina
                                                     [Solidago scabrida]
                                               Solidago velutina var. nevadensis
                                             Solidago verna
                                             Solidago virgaurea
                                                   [Solidago vulgaris]
                                               Solidago virgaurea subsp. asiatica
                                                     [Solidago japonica]
                                               Solidago virgaurea subsp. minuta
                                               Solidago virgaurea subsp. virgaurea
                                                     [Solidago latifolia]
                                                     [Solidago minor]
                                             Solidago wrightii
                                                   [Solidago bigelovii]
                                                   [Solidago wrightii var. adenophora]
                                               Solidago wrightii var. guadalupensis
                                               Solidago wrightii var. wrightii
                                     Soliva
                                             Soliva anthemifolia
                                                   [Gymnostyles anthemifolia]
                                             Soliva sessilis
                                                   [Soliva daucifolia]
                                                   [Soliva pterosperma]
                                             Soliva stolonifera
                                                   [Gymnostyles nasturtiifolia]
                                     Sonchella
                                             Sonchella stenoma
                                                   [Youngia stenoma]
                                     Sonchus
                                             Sonchus arboreus
                                             Sonchus arvensis
                                                   [Hieracium arvense]
                                               Sonchus arvensis subsp. arvensis
                                                     [Sonchus arvensis var. arvensis]
                                               Sonchus arvensis subsp. uliginosus
                                                     [Sonchus arvensis var. glabrescens]
                                                     [Sonchus arvensis var. uliginosus]
                                                     [Sonchus uliginosus]
                                               Sonchus arvensis var. arvensis
                                               Sonchus arvensis var. uliginosus
                                             Sonchus asper
                                               Sonchus asper subsp. asper
                                                     [Sonchus oleraceus var. asper]
                                             Sonchus brachylobus
                                             Sonchus brachyotus
                                             Sonchus brassicifolius
                                                   [Dendroseris litoralis]
                                             Sonchus canariensis
                                               Sonchus canariensis subsp. canariensis
                                                     [Sonchus pinnatus var. canariensis]
                                             Sonchus congestus
                                                   [Sonchus abbreviatus]
                                                   [Sonchus jacquinii]
                                                   [Sonchus macranthus]
                                             Sonchus crassifolius
                                             Sonchus fauces-orci
                                             Sonchus fruticosus
                                             Sonchus laceratus
                                                   [Thamnoseris lobata]
                                             Sonchus leptocephalus
                                             Sonchus maritimus
                                             Sonchus micranthus
                                                   [Dendroseris micrantha]
                                             Sonchus oleraceus
                                             Sonchus palmensis
                                             Sonchus pendulus
                                               Sonchus pendulus subsp. pendulus
                                                     [Prenanthes pendula]
                                             Sonchus pinnatus
                                             Sonchus platylepis
                                             Sonchus pruinatus
                                                   [Dendroseris pruinata]
                                             Sonchus radicatus
                                             Sonchus regius
                                                   [Dendroseris regia]
                                             Sonchus tenerrimus
                                               Sonchus tenerrimus subsp. tenerrimus
                                                     [Sonchus tenuifolius]
                                             Sonchus transcaspicus
                                             Sonchus ustulatus
                                             Sonchus wightianus
                                     Soroseris
                                             Soroseris depressa
                                               Soroseris depressa subsp. depressa
                                                     [Youngia depressa]
                                     Sphaeranthus
                                             Sphaeranthus africanus
                                             Sphaeranthus cotuloides
                                             Sphaeranthus indicus
                                             Sphaeranthus senegalensis
                                             Sphaeranthus steetzii
                                     Sphaeromeria
                                             Sphaeromeria cana
                                                   [Artemisia albicans]
                                                   [Tanacetum canum]
                                             Sphaeromeria capitata
                                             Sphaeromeria potentilloides
                                                   [Artemisia potentilloides]
                                                   [Tanacetum potentilloides]
                                                   [Vesicarpa potentilloides]
                                               Sphaeromeria potentilloides var. nitrophila
                                                     [Artemisia potentilloides var. nitrophila]
                                                     [Tanacetum potentilloides var. nitrophilum]
                                                     [Vesicarpa potentilloides var. nitrophilum]
                                               Sphaeromeria potentilloides var. potentilloides
                                                     [Artemisia potentilloides var. potentilloides]
                                                     [Vesicarpa potentilloides var. potentilloides]
                                     Sphagneticola
                                             Sphagneticola gracilis
                                                   [Complaya gracilis]
                                             Sphagneticola trilobata
                                                   [Complaya trilobata]
                                                   [Wedelia trilobata]
                                     Spilanthes
                                             Spilanthes nervosa
                                                   [Spilanthes urens var. nervosa]
                                             Spilanthes urens
                                                   [Spilanthes palustris]
                                     Spiracantha
                                             Spiracantha cornifolia
                                     Squamopappus
                                             Squamopappus skutchii
                                                   [Calea skutchii]
                                     Staehelina
                                             Staehelina baetica
                                             Staehelina dubia
                                     Stebbinsoseris
                                             Stebbinsoseris decipiens
                                                   [Microseris decipiens]
                                             Stebbinsoseris heterocarpa
                                                   [Microseris heterocarpa]
                                                   [Uropappus heterocarpus]
                                                   [Uropappus leucocarpus]
                                     Stenactis
                                     Stenocarpha
                                             Stenocarpha filiformis
                                                   [Galinsoga filiformis]
                                     Stenocephalum
                                             Stenocephalum hexanthum
                                                   [Vernonia hexantha var. nivea]
                                                   [Vernonia hexantha]
                                             Stenocephalum hystrix
                                                   [Vernonia hystrix]
                                             Stenocephalum jucundum
                                                   [Vernonia jucunda]
                                             Stenocephalum megapotamicum
                                                   [Vernonia megapotamica]
                                     Stenocline
                                     Stenopadus
                                             Stenopadus campestris
                                             Stenopadus talaumifolius
                                                   [Stenopadus neblinensis]
                                     Stenoseris
                                     Stenotopsis
                                     Stenotus
                                             Stenotus acaulis
                                                   [Chrysopsis acaulis]
                                                   [Haplopappus acaulis var. glabratus]
                                                   [Haplopappus acaulis]
                                                   [Hoorebekia acaulis]
                                                   [Stenotus acaulis var. glabratus]
                                                   [Stenotus acaulis var. kennedyi]
                                               Stenotus acaulis var. acaulis
                                             Stenotus armerioides
                                                   [Haplopappus armerioides]
                                               Stenotus armerioides var. armerioides
                                               Stenotus armerioides var. gramineus
                                                     [Haplopappus armerioides var. gramineus]
                                             Stenotus lanuginosus
                                                   [Haplopappus lanuginosus]
                                               Stenotus lanuginosus var. andersonii
                                                     [Haplopappus lanuginosus var. andersonii]
                                               Stenotus lanuginosus var. lanuginosus
                                             Stenotus pulvinatus
                                                   [Haplopappus pulvinatus]
                                     Stephanomeria
                                             Stephanomeria cichoriacea
                                             Stephanomeria diegensis
                                             Stephanomeria elata
                                             Stephanomeria exigua
                                                   [Ptiloria exigua]
                                               Stephanomeria exigua subsp. carotifera
                                                     [Stephanomeria carotifera]
                                               Stephanomeria exigua subsp. coronaria
                                                     [Stephanomeria coronaria]
                                                     [Stephanomeria exigua var. coronaria]
                                               Stephanomeria exigua subsp. deanei
                                                     [Stephanomeria exigua var. deanei]
                                               Stephanomeria exigua subsp. exigua
                                                     [Stephanomeria exigua var. exigua]
                                                     [Stephanomeria exigua var. pentachaeta]
                                                     [Stephanomeria oregonensis]
                                                     [Stephanomeria pentachaeta]
                                                     [Stephanomeria schottii]
                                               Stephanomeria exigua subsp. macrocarpa
                                               Stephanomeria exigua var. exigua
                                             Stephanomeria fluminea
                                             Stephanomeria guadalupensis
                                             Stephanomeria lactucina
                                             Stephanomeria malheurensis
                                             Stephanomeria mexiae
                                             Stephanomeria monocephala
                                             Stephanomeria paniculata
                                                   [Ptiloria paniculata]
                                             Stephanomeria parryi
                                                   [Ptiloria parryi]
                                             Stephanomeria pauciflora
                                                   [Jamesia pauciflora]
                                                   [Lygodesmia pauciflora]
                                                   [Prenanthes pauciflora]
                                                   [Ptiloria pauciflora]
                                                   [Stephanomeria cinerea]
                                                   [Stephanomeria haleyi]
                                                   [Stephanomeria pauciflora var. parishii]
                                                   [Stephanomeria pauciflora var. pauciflora]
                                                   [Stephanomeria runcinata var. parishii]
                                             Stephanomeria runcinata
                                             Stephanomeria tenuifolia
                                                   [Lygodesmia minor]
                                                   [Lygodesmia tenuifolia]
                                                   [Ptiloria filifolia]
                                                   [Ptiloria tenuifolia]
                                                   [Stephanomeria minor var. minor]
                                                   [Stephanomeria minor var. myrioclada]
                                                   [Stephanomeria minor]
                                                   [Stephanomeria myrioclada]
                                                   [Stephanomeria tenuifolia var. myrioclada]
                                                   [Stephanomeria tenuifolia var. uintaensis]
                                                   [Stephanomeria wrightii]
                                               Stephanomeria tenuifolia var. tenuifolia
                                             Stephanomeria thurberi
                                             Stephanomeria virgata
                                                   [Ptiloria virgata]
                                               Stephanomeria virgata subsp. pleurocarpa
                                                     [Stephanomeria virgata var. pleurocarpa]
                                               Stephanomeria virgata subsp. virgata
                                                     [Ptiloria tomentosa]
                                                     [Stephanomeria tomentosa]
                                                     [Stephanomeria virgata var. tomentosa]
                                                     [Stephanomeria virgata var. virgata]
                                     Stevia
                                             Stevia alatipes
                                             Stevia amblyolepis
                                                   [Stevia amblyolepis var. umbratilis]
                                             Stevia amplexicaulis
                                             Stevia anadenotricha
                                             Stevia andina
                                             Stevia aschenborniana
                                                   [Stevia diffusa]
                                             Stevia berlandieri
                                             Stevia caracasana
                                             Stevia chiapensis
                                             Stevia clinopodioides
                                             Stevia connata
                                             Stevia cruzii
                                             Stevia cuneata
                                             Stevia decumbens
                                                   [Stevia elatior var. decumbens]
                                             Stevia deltoidea
                                             Stevia dictyophylla
                                             Stevia elatior
                                                   [Stevia elongata]
                                             Stevia ephemera
                                             Stevia eupatoria
                                             Stevia glandulosa
                                                   [Stevia glandulosa var. gentryi]
                                               Stevia glandulosa var. glandulosa
                                             Stevia hirsuta
                                             Stevia iltisiana
                                             Stevia incognita
                                             Stevia jaliscensis
                                             Stevia jorullensis
                                             Stevia latifolia
                                             Stevia lemmonii
                                             Stevia leptophylla
                                                   [Stevia guaranitica]
                                             Stevia lucida
                                               Stevia lucida var. oaxacana
                                             Stevia mexicana
                                             Stevia micradenia
                                             Stevia micrantha
                                             Stevia microchaeta
                                             Stevia monardifolia
                                                   [Stevia monardifolia var. macrophylla]
                                             Stevia myricoides
                                             Stevia nelsonii
                                             Stevia occidentalis
                                                   [Stevia aschenborniana var. occidentalis]
                                             Stevia origanoides
                                             Stevia ovata
                                                   [Stevia rhombifolia]
                                               Stevia ovata var. ovata
                                               Stevia ovata var. texana
                                             Stevia palmeri
                                             Stevia pelophila
                                             Stevia pilosa
                                             Stevia plummerae
                                                   [Stevia plummerae var. durangensis]
                                               Stevia plummerae var. plummerae
                                             Stevia polycephala
                                                   [Stevia polycephala var. oaxacensis]
                                             Stevia porphyrea
                                             Stevia purpusii
                                             Stevia rebaudiana
                                             Stevia reclinata
                                             Stevia reticulata
                                             Stevia rosei
                                             Stevia rzedowskii
                                             Stevia salicifolia
                                                   [Stevia flourensioides]
                                               Stevia salicifolia var. collodes
                                                     [Stevia collodes]
                                               Stevia salicifolia var. salicifolia
                                               Stevia salicifolia var. virgulifera
                                             Stevia scabrella
                                             Stevia seemannii
                                             Stevia seemannioides
                                             Stevia serrata
                                                   [Stevia serrata var. arguta]
                                                   [Stevia serrata var. linoides]
                                               Stevia serrata var. serrata
                                             Stevia strotheriana
                                                   [Stevia lemmonii var. hispidula]
                                             Stevia suaveolens
                                                   [Stevia nepetifolia]
                                             Stevia subpubescens
                                               Stevia subpubescens var. intermedia
                                               Stevia subpubescens var. opaca
                                               Stevia subpubescens var. subpubescens
                                             Stevia tephra
                                             Stevia tephrophylla
                                             Stevia tomentosa
                                             Stevia trifida
                                             Stevia triflora
                                             Stevia velutinella
                                             Stevia vernicosa
                                             Stevia villaregalis
                                             Stevia viscida
                                                   [Stevia purpurea]
                                     Steviopsis
                                             Steviopsis amblyolepis
                                                   [Brickellia amblyolepis]
                                             Steviopsis dryophila
                                             Steviopsis vigintiseta
                                                   [Brickellia pulcherrima]
                                     Stifftia
                                             Stifftia chrysantha
                              Stifftioideae
                                     Eurydochus
                                             Eurydochus bracteatus
                                     Stoebe
                                             Stoebe aethiopica
                                             Stoebe alopecuroides
                                             Stoebe capitata
                                             Stoebe cryptophylla
                                             Stoebe plumosa
                                                   [Seriphium plumosum]
                                     Stokesia
                                             Stokesia laevis
                                                   [Stokesia cyanea]
                                     Stramentopappus
                                             Stramentopappus pooleae
                                                   [Vernonia pooleae]
                                     Streptoglossa
                                             Streptoglossa cylindriceps
                                             Streptoglossa decurrens
                                                   [Pterigeron decurrens]
                                             Streptoglossa liatroides
                                     Strobocalyx
                                             Strobocalyx bockiana
                                                   [Pluchea rubicunda]
                                             Strobocalyx esculenta
                                                   [Vernonia esculenta]
                                     Strongylosperma
                                     Strotheria
                                             Strotheria gypsophila
                                     Struchium
                                             Struchium sparganophorum
                                     Stylocline
                                             Stylocline citroleum
                                             Stylocline gnaphaloides
                                                   [Stylocline gnaphalioides]
                                             Stylocline intertexta
                                             Stylocline masonii
                                             Stylocline micropoides
                                             Stylocline psilocarphoides
                                             Stylocline sonorensis
                                     Stylopappus
                                     Symphyopappus
                                             Symphyopappus angustifolius
                                             Symphyopappus brasiliensis
                                             Symphyopappus compressus
                                             Symphyopappus lymansmithii
                                     Symphyotrichum
                                             Symphyotrichum anomalum
                                                   [Aster anomalus]
                                             Symphyotrichum ascendens
                                                   [Aster adscendens]
                                                   [Aster ascendens]
                                                   [Aster chilensis subsp. adscendens]
                                                   [Aster chilensis subsp. ascendens]
                                                   [Virgulaster ascendens]
                                             Symphyotrichum batesii
                                                   [Aster batesii]
                                             Symphyotrichum boreale
                                                   [Aster junciformis]
                                             Symphyotrichum bracteolatum
                                                   [Aster bracteolatus]
                                                   [Aster eatonii]
                                                   [Aster foliaceus var. eatonii]
                                                   [Symphyotrichum eatonii]
                                             Symphyotrichum bullatum
                                                   [Aster bullatus]
                                             Symphyotrichum campestre
                                                   [Aster campestris var. bloomeri]
                                                   [Aster campestris]
                                                   [Symphyotrichum campestre var. bloomeri]
                                                   [Symphyotrichum campestre var. campestre]
                                                   [Virgulus campestris]
                                             Symphyotrichum carnerosanum
                                             Symphyotrichum chilense
                                                   [Aster chilensis subsp. chilensis]
                                                   [Aster chilensis var. chilensis]
                                                   [Aster chilensis var. invenustus]
                                                   [Aster chilensis var. medius]
                                                   [Aster chilensis]
                                                   [Aster invenustus]
                                                   [Symphyotrichum chilense var. chilense]
                                                   [Symphyotrichum chilense var. invenustum]
                                                   [Symphyotrichum chilense var. medium]
                                               Symphyotrichum chilense var. chilense
                                             Symphyotrichum ciliatum
                                                   [Aster brachyactis]
                                                   [Aster ciliatus]
                                             Symphyotrichum ciliolatum
                                                   [Aster ciliolatus]
                                                   [Aster lindleyanus]
                                             Symphyotrichum concolor
                                                   [Aster concolor]
                                             Symphyotrichum cordifolium
                                                   [Aster lowrieanus]
                                                   [Aster sagittifolius]
                                             Symphyotrichum defoliatum
                                                   [Aster bernardinus]
                                                   [Aster chilensis var. bernardinus]
                                                   [Aster defoliatus]
                                                   [Virgulaster bernardinus]
                                             Symphyotrichum depauperatum
                                             Symphyotrichum drummondii
                                             Symphyotrichum dumosum
                                                   [Aster dumosus]
                                             Symphyotrichum elliottii
                                             Symphyotrichum ericoides
                                                   [Aster ericoides]
                                                   [Aster pilosus]
                                                   [Aster subulatus var. subulatus]
                                                   [Aster subulatus]
                                                   [Symphyotrichum ericoides var. prostratum]
                                               Symphyotrichum ericoides var. ericoides
                                               Symphyotrichum ericoides var. pansum
                                                     [Aster stricticaulis]
                                             Symphyotrichum eulae
                                             Symphyotrichum falcatum
                                                   [Aster falcatus]
                                               Symphyotrichum falcatum var. commutatum
                                                     [Aster commutatus var. commutatus]
                                                     [Aster commutatus]
                                                     [Aster falcatus var. commutatus]
                                               Symphyotrichum falcatum var. falcatum
                                             Symphyotrichum fendleri
                                                   [Aster fendleri]
                                             Symphyotrichum firmum
                                                   [Aster puniceus]
                                             Symphyotrichum foliaceum
                                                   [Aster foliaceus var. foliaceus]
                                                   [Aster foliaceus]
                                               Symphyotrichum foliaceum var. apricum
                                                     [Aster foliaceus subsp. apricus]
                                                     [Aster foliaceus var. apricus]
                                               Symphyotrichum foliaceum var. canbyi
                                                     [Aster foliaceus var. canbyi]
                                               Symphyotrichum foliaceum var. cusickii
                                                     [Aster foliaceus var. lyallii]
                                                     [Symphyotrichum cusickii]
                                               Symphyotrichum foliaceum var. foliaceum
                                                     [Aster foliaceus var. foliaceus]
                                               Symphyotrichum foliaceum var. parryi
                                                     [Aster adscendens var. parryi]
                                                     [Aster ascendens var. parryi]
                                                     [Aster foliaceus var. parryi]
                                             Symphyotrichum frondosum
                                                   [Aster ensatus]
                                                   [Aster frondosus]
                                                   [Brachyactis ciliata var. carnosula]
                                                   [Brachyactis frondosa]
                                                   [Tripolium frondosum]
                                             Symphyotrichum georgianum
                                             Symphyotrichum grandiflorum
                                             Symphyotrichum greatae
                                                   [Aster greatae]
                                                   [Aster greatai]
                                                   [Aster greatei]
                                                   [Symphyotrichum greatai]
                                                   [Symphyotrichum greatei]
                                             Symphyotrichum hallii
                                                   [Aster hallii]
                                             Symphyotrichum hendersonii
                                                   [Aster foliaceus var. lyallii]
                                                   [Aster foliaceus]
                                                   [Aster hendersonii]
                                             Symphyotrichum jessicae
                                             Symphyotrichum laeve
                                                   [Aster laevis var. amplifolius]
                                                   [Aster pickettianus]
                                               Symphyotrichum laeve var. concinnum
                                               Symphyotrichum laeve var. geyeri
                                                     [Aster laevis subsp. geyeri]
                                                     [Aster laevis var. geyeri]
                                               Symphyotrichum laeve var. laeve
                                             Symphyotrichum lanceolatum
                                                   [Aster lanceolatus]
                                               Symphyotrichum lanceolatum subsp. lanceolatum
                                               Symphyotrichum lanceolatum var. hesperium
                                                     [Aster foliaceus var. hesperius]
                                                     [Aster hesperius var. hesperius]
                                                     [Aster hesperius]
                                                     [Aster lanceolatus subsp. hesperius]
                                                     [Symphyotrichum hesperium]
                                                     [Symphyotrichum lanceolatum subsp. hesperium]
                                               Symphyotrichum lanceolatum var. lanceolatum
                                             Symphyotrichum lateriflorum
                                                   [Aster lateriflorus var. lateriflorus]
                                                   [Aster lateriflorus var. pendulus]
                                                   [Aster lateriflorus]
                                             Symphyotrichum lentum
                                                   [Aster chilensis var. lentus]
                                                   [Aster chilensis var. sonomensis]
                                                   [Aster lentus var. sonomensis]
                                                   [Aster lentus]
                                             Symphyotrichum molle
                                             Symphyotrichum moranense
                                                   [Aster lima]
                                                   [Aster moranensis]
                                             Symphyotrichum novae-angliae
                                                   [Aster novae-angliae]
                                             Symphyotrichum novi-belgii
                                                   [Aster longifolius]
                                                   [Aster novi-belgii]
                                                   [Aster tardiflorus]
                                             Symphyotrichum oblongifolium
                                                   [Aster kumleinii]
                                                   [Aster oblongifolius]
                                             Symphyotrichum ontarionis
                                                   [Aster ontarionis]
                                             Symphyotrichum oolentangiense
                                                   [Aster azureus]
                                                   [Aster oolentangiensis]
                                             Symphyotrichum patens
                                                   [Aster patens var. patens]
                                                   [Aster patens]
                                               Symphyotrichum patens var. gracile
                                               Symphyotrichum patens var. patentissimum
                                             Symphyotrichum patulum
                                                   [Aster patulus]
                                             Symphyotrichum phlogifolium
                                                   [Aster phlogifolius]
                                             Symphyotrichum pilosum
                                                   [Aster pilosus var. demotus]
                                               Symphyotrichum pilosum var. pilosum
                                               Symphyotrichum pilosum var. pringlei
                                             Symphyotrichum porteri
                                                   [Aster porteri]
                                             Symphyotrichum potosinum
                                                   [Aster potosinus]
                                             Symphyotrichum praealtum
                                                   [Aster coerulescens]
                                                   [Aster praealtus]
                                                   [Aster salicifolius var. stenophyllus]
                                             Symphyotrichum pratense
                                                   [Aster pratensis]
                                             Symphyotrichum prenanthoides
                                                   [Aster prenanthoides]
                                             Symphyotrichum priceae
                                             Symphyotrichum puniceum
                                               Symphyotrichum puniceum var. scabricaule
                                             Symphyotrichum purpurascens
                                             Symphyotrichum racemosum
                                                   [Aster fragilis]
                                                   [Aster glaber]
                                                   [Aster multiflorus]
                                                   [Aster vimineus]
                                             Symphyotrichum retroflexum
                                                   [Aster curtisii]
                                             Symphyotrichum salignum
                                                   [Aster cordifolius]
                                                   [Aster salignus]
                                             Symphyotrichum sericeum
                                                   [Aster sericeus]
                                             Symphyotrichum shortii
                                                   [Aster shortii]
                                             Symphyotrichum simmondsii
                                                   [Aster simmondsii]
                                             Symphyotrichum spathulatum
                                                   [Aster delectabilis]
                                                   [Aster occidentalis var. delectabilis]
                                                   [Aster occidentalis var. occidentalis]
                                                   [Aster occidentalis var. parishii]
                                                   [Aster occidentalis]
                                                   [Aster spathulatus]
                                               Symphyotrichum spathulatum subsp. spathulatum
                                               Symphyotrichum spathulatum var. intermedium
                                                     [Aster occidentalis subsp. intermedius]
                                                     [Aster occidentalis var. intermedius]
                                                     [Aster spathulatus var. intermedius]
                                                     [Symphyotrichum spathulatum subsp. intermedium]
                                               Symphyotrichum spathulatum var. spathulatum
                                                     [Aster fremontii var. parishii]
                                                     [Aster occidentalis var. delectabilis]
                                                     [Aster occidentalis var. occidentalis]
                                                     [Aster occidentalis var. parishii]
                                                     [Aster spathulatus var. spathulatus]
                                               Symphyotrichum spathulatum var. yosemitanum
                                                     [Aster adscendens var. yosemitanus]
                                                     [Aster ascendens var. yosemitanus]
                                                     [Aster occidentalis var. yosemitanus]
                                                     [Aster paludicola]
                                             Symphyotrichum subspicatum
                                                   [Aster subspicatus]
                                             Symphyotrichum subulatum
                                                   [Aster subulatus]
                                                   [Erigeron linifolius]
                                                   [Mesoligus subulatus]
                                                   [Tripolium subulatum]
                                               Symphyotrichum subulatum var. elongatum
                                                     [Aster bahamensis]
                                                     [Aster subulatus var. bahamensis]
                                                     [Aster subulatus var. elongatus]
                                                     [Symphyotrichum bahamense]
                                                     [Symphyotrichum subulatum subsp. elongatum]
                                               Symphyotrichum subulatum var. ligulatum
                                                     [Aster divaricatus]
                                                     [Aster exilis]
                                                     [Aster subulatus var. ligulatus]
                                                     [Symphyotrichum divaricatum]
                                               Symphyotrichum subulatum var. parviflorum
                                                     [Aster exilis]
                                                     [Aster subulatus var. cubensis]
                                                     [Erigeron expansus]
                                                     [Symphyotrichum expansum]
                                               Symphyotrichum subulatum var. squamatum
                                                     [Aster squamatum]
                                                     [Aster squamatus]
                                                     [Conyza squamata]
                                                     [Conyzanthus squamatus]
                                                     [Symphyotrichum squamatum]
                                               Symphyotrichum subulatum var. subulatum
                                             Symphyotrichum tenuifolium
                                                   [Aster tenuifolius]
                                               Symphyotrichum tenuifolium var. aphyllum
                                                     [Symphyotrichum bracei]
                                             Symphyotrichum tradescantii
                                                   [Aster tradescantii var. fragilis]
                                                   [Aster tradescantii]
                                             Symphyotrichum trilineatum
                                             Symphyotrichum turbinellum
                                             Symphyotrichum turneri
                                             Symphyotrichum undulatum
                                                   [Aster paniculatus]
                                             Symphyotrichum urophyllum
                                             Symphyotrichum vahlii
                                                   [Aster vahlii]
                                             Symphyotrichum versicolor
                                             Symphyotrichum walteri
                                             Symphyotrichum welshii
                                             Symphyotrichum yukonense
                                             Symphyotrichum × gravesii
                                                   [Aster gravesii]
                                     Syncarpha
                                             Syncarpha argyropsis
                                             Syncarpha canescens
                                               Syncarpha canescens subsp. canescens
                                                     [Helipterum canescens]
                                             Syncarpha eximia
                                                   [Helipterum eximium]
                                             Syncarpha milleflora
                                                   [Helipterum milleflorum]
                                             Syncarpha paniculata
                                                   [Helichrysum paniculatum]
                                             Syncarpha vestita
                                                   [Helichrysum vestitum]
                                     Synedrella
                                             Synedrella nodiflora
                                     Synotis
                                             Synotis acuminata
                                             Synotis alata
                                             Synotis cappa
                                             Synotis cordifolia
                                             Synotis glomerata
                                             Synotis lucorum
                                             Synotis saluenensis
                                             Synotis tetrantha
                                             Synotis xantholeuca
                                             Synotis yakoensis
                                     Syntrichopappus
                                             Syntrichopappus fremontii
                                             Syntrichopappus lemmonii
                                                   [Actinolepis lemmoni]
                                                   [Actinolepis lemmonii]
                                                   [Microbahia lemmoni]
                                                   [Microbahia lemmonii]
                                                   [Syntrichopappus lemmoni]
                                     Tagetes
                                             Tagetes arenicola
                                             Tagetes coronopifolia
                                             Tagetes elongata
                                             Tagetes erecta
                                                   [Tagetes excelsa]
                                                   [Tagetes heterocarpha]
                                                   [Tagetes patula]
                                             Tagetes filifolia
                                                   [Tagetes pusilla]
                                             Tagetes foetidissima
                                             Tagetes lacera
                                             Tagetes lemmonii
                                             Tagetes linifolia
                                             Tagetes lucida
                                             Tagetes lunulata
                                             Tagetes mandonii
                                             Tagetes micrantha
                                             Tagetes minuta
                                             Tagetes multiflora
                                             Tagetes nelsonii
                                             Tagetes oaxacana
                                             Tagetes palmeri
                                             Tagetes praetermissa
                                                   [Vilobia praetermissa]
                                             Tagetes pringlei
                                             Tagetes remotiflora
                                             Tagetes stenophylla
                                             Tagetes subulata
                                             Tagetes tenuifolia
                                                   [Tagetes microglossa]
                                             Tagetes terniflora
                                             Tagetes triradiata
                                                   [Tagetes jaliscensis]
                                             Tagetes zypaquirensis
                                     Tamaulipa
                                             Tamaulipa azurea
                                                   [Eupatorium azureum]
                                     Tanacetum
                                             Tanacetum balsamita
                                                   [Balsamita major]
                                                   [Chrysanthemum balsamita]
                                             Tanacetum bipinnatum
                                                   [Chrysanthemum bipinnatum]
                                                   [Omalanthus camphoratus]
                                                   [Omalotes camphorata]
                                                   [Tanacetum camphoratum]
                                               Tanacetum bipinnatum subsp. bipinnatum
                                                     [Tanacetum camphoratum]
                                                     [Tanacetum douglasii]
                                                     [Tanacetum huronense var. floccosum]
                                                     [Tanacetum huronense]
                                             Tanacetum cinerariifolium
                                                   [Chrysanthemum cinerariifolium]
                                             Tanacetum coccineum
                                               Tanacetum coccineum subsp. coccineum
                                                     [Chrysanthemum coccineum]
                                             Tanacetum dumosum
                                             Tanacetum microphyllum
                                             Tanacetum parthenium
                                                   [Chrysanthemum parthenium]
                                                   [Matricaria parthenium]
                                                   [Pyrethrum parthenium]
                                             Tanacetum tatsienense
                                                   [Pyrethrum tatsienense]
                                             Tanacetum vulgare
                                                   [Chrysanthemum vulgare subsp. vulgare]
                                                   [Chrysanthemum vulgare var. vulgare]
                                                   [Chrysanthemum vulgare]
                                                   [Pyrethrum vulgare]
                                               Tanacetum vulgare subsp. vulgare
                                                     [Tanacetum vulgare var. crispum]
                                     Taraxacum
                                             Taraxacum alaskanum
                                                   [Taraxacum lyratum]
                                             Taraxacum albidum
                                             Taraxacum britannicum
                                             Taraxacum californicum
                                                   [Taraxacum ceratophorum var. bernardinum]
                                             Taraxacum campylodes
                                             Taraxacum ceratophorum
                                                   [Leontodon ceratophorus]
                                                   [Taraxacum eriophorum]
                                                   [Taraxacum officinale subsp. ceratophorum]
                                                   [Taraxacum vulgare var. ceratophorum]
                                             Taraxacum erythrospermum
                                                   [Leontodon erythrospermum]
                                                   [Taraxacum laevigatum var. erythrospermum]
                                                   [Taraxacum officinale var. erythrospermum]
                                             Taraxacum expandens
                                             Taraxacum germanicum
                                                   [Taraxacum lividum]
                                             Taraxacum hamatum
                                             Taraxacum indicum
                                             Taraxacum kok-saghyz
                                             Taraxacum lateritium
                                             Taraxacum mexicanum
                                             Taraxacum officinale
                                                   [Leontodon laevigatus]
                                                   [Taraxacum laevigatum]
                                                   [Taraxacum officinale subsp. officinale]
                                                   [Taraxacum officinale var. laevigatum]
                                               Taraxacum officinale var. officinale
                                             Taraxacum parnassicum
                                             Taraxacum sibiricum
                                             Taraxacum tenejapense
                                             Taraxacum vulgare
                              Tarchonanthoideae
                                     Tarchonanthus
                                             Tarchonanthus camphoratus
                                             Tarchonanthus minor
                                     Tarlmounia
                                             Tarlmounia elliptica
                                                   [Vernonia elliptica]
                                     Telanthophora
                                             Telanthophora andrieuxii
                                                   [Senecio andrieuxii]
                                             Telanthophora cobanensis
                                             Telanthophora grandifolia
                                                   [Senecio chicharrensis]
                                                   [Senecio grandifolius]
                                                   [Telanthophora grandifolia var. serraquitchensis]
                                             Telanthophora jaliscana
                                             Telanthophora liebmannii
                                             Telanthophora uspantanensis
                                                   [Senecio uspantanensis]
                                     Tephroseris
                                             Tephroseris frigida
                                             Tephroseris helenitis
                                             Tephroseris integrifolia
                                               Tephroseris integrifolia subsp. atropurpurea
                                                     [Senecio atropurpureus]
                                               Tephroseris integrifolia subsp. tundricola
                                                     [Senecio tundricola]
                                                     [Tephroseris tundricola]
                                             Tephroseris kjellmanii
                                             Tephroseris lindstroemii
                                                   [Senecio tundricola subsp. lindstroemii]
                                             Tephroseris newcombei
                                                   [Senecio newcombei]
                                             Tephroseris palustris
                                                   [Senecio congestus]
                                                   [Senecio palustris]
                                             Tephroseris yukonensis
                                                   [Senecio yukonensis]
                                     Tessaria
                                             Tessaria absinthioides
                                                   [Pluchea absinthioides]
                                             Tessaria dodoneifolia
                                             Tessaria integrifolia
                                     Tetrachyron
                                             Tetrachyron brandegeei
                                             Tetrachyron grayi
                                             Tetrachyron manicatum
                                             Tetrachyron torresii
                                     Tetradymia
                                             Tetradymia argyraea
                                             Tetradymia axillaris
                                               Tetradymia axillaris var. axillaris
                                               Tetradymia axillaris var. longispina
                                                     [Tetradymia spinosa var. longispina]
                                             Tetradymia canescens
                                                   [Tetradymia inermis]
                                             Tetradymia comosa
                                             Tetradymia filifolia
                                             Tetradymia glabrata
                                             Tetradymia nuttallii
                                             Tetradymia spinosa
                                               Tetradymia spinosa var. spinosa
                                             Tetradymia stenolepis
                                             Tetradymia tetrameres
                                                   [Tetradymia comosa subsp. tetrameres]
                                     Tetragonotheca
                                             Tetragonotheca helianthoides
                                             Tetragonotheca repanda
                                             Tetragonotheca texana
                                     Tetramolopium
                                             Tetramolopium consanguineum
                                               Tetramolopium consanguineum subsp. leptophyllum
                                                     [Tetramolopium consanguineum var. kauense]
                                             Tetramolopium filiforme
                                             Tetramolopium humile
                                               Tetramolopium humile subsp. haleakalae
                                             Tetramolopium mitiaroense
                                             Tetramolopium rockii
                                             Tetramolopium sylvae
                                             Tetramolopium tenerrimum
                                                   [Erigeron copelandii]
                                     Tetraneuris
                                             Tetraneuris acaulis
                                                   [Actinea acaulis subsp. acaulis]
                                                   [Actinea acaulis]
                                                   [Actinella acaulis]
                                                   [Hymenoxys acaulis var. acaulis]
                                                   [Hymenoxys acaulis]
                                               Tetraneuris acaulis var. acaulis
                                                     [Actinea acaulis subsp. acaulis]
                                                     [Actinea acaulis var. acaulis]
                                                     [Hymenoxys acaulis var. acaulis]
                                               Tetraneuris acaulis var. arizonica
                                                     [Actinea acaulis subsp. arizonica]
                                                     [Actinea acaulis var. arizonica]
                                                     [Actinea arizonica]
                                                     [Hymenoxys acaulis var. arizonica]
                                                     [Hymenoxys acaulis var. nana]
                                                     [Tetraneuris acaulis var. nana]
                                               Tetraneuris acaulis var. caespitosa
                                                     [Hymenoxys acaulis var. caespitosa]
                                                     [Tetraneuris brevifolia]
                                               Tetraneuris acaulis var. epunctata
                                             Tetraneuris argentea
                                                   [Hymenoxys argentea var. thoreauensis]
                                                   [Hymenoxys argentea]
                                                   [Tetraneuris formosa]
                                             Tetraneuris epunctata
                                             Tetraneuris ivesiana
                                                   [Hymenoxys acaulis var. ivesiana]
                                                   [Hymenoxys ivesiana]
                                                   [Tetraneuris intermedia]
                                             Tetraneuris linearifolia
                                                   [Hymenoxys linearifolia]
                                             Tetraneuris scaposa
                                                   [Actinea scaposa]
                                                   [Hymenoxys scaposa var. linearis]
                                                   [Hymenoxys scaposa var. scaposa]
                                                   [Hymenoxys scaposa]
                                                   [Tetraneuris scaposa var. villosa]
                                               Tetraneuris scaposa var. scaposa
                                             Tetraneuris torreyana
                                                   [Hymenoxys torreyana]
                                             Tetraneuris turneri
                                                   [Hymenoxys turneri]
                                             Tetraneuris verdiensis
                                     Tetrastylis
                                     Thamnoseris
                                     Thelesperma
                                             Thelesperma ambiguum
                                                   [Thelesperma megapotamicum var. ambiguum]
                                             Thelesperma burridgeanum
                                             Thelesperma filifolium
                                                   [Thelesperma filifolium var. intermedium]
                                                   [Thelesperma trifidum]
                                               Thelesperma filifolium var. filifolium
                                             Thelesperma flavodiscum
                                             Thelesperma graminiformis
                                             Thelesperma longipes
                                             Thelesperma megapotamicum
                                                   [Bidens megapotamica]
                                                   [Isostigma megapotamicum]
                                                   [Thelesperma gracile]
                                               Thelesperma megapotamicum var. megapotamicum
                                             Thelesperma nuecense
                                             Thelesperma simplicifolium
                                                   [Thelesperma curvicarpum]
                                               Thelesperma simplicifolium var. simplicifolium
                                             Thelesperma subnudum
                                                   [Thelesperma marginatum]
                                     Thrincia
                                             Thrincia maroccana
                                               Thrincia maroccana subsp. maroccana
                                                     [Leontodon maroccanus]
                                             Thrincia tuberosa
                                                   [Leontodon tuberosus]
                                     Thurovia
                                             Thurovia triflora
                                     Thymophylla
                                             Thymophylla acerosa
                                                   [Dyssodia acerosa]
                                             Thymophylla aurantiaca
                                                   [Dyssodia aurantiaca]
                                                   [Hymenatherum aurantiacum]
                                             Thymophylla aurea
                                                   [Dyssodia aurea]
                                                   [Lowellia aurea]
                                             Thymophylla concinna
                                                   [Dyssodia concinna]
                                             Thymophylla gypsophila
                                                   [Dyssodia gypsophila]
                                             Thymophylla micropoides
                                                   [Dyssodia micropoides]
                                             Thymophylla mutica
                                                   [Dyssodia mutica]
                                             Thymophylla pentachaeta
                                                   [Dyssodia pentachaeta subsp. pentachaeta]
                                                   [Dyssodia pentachaeta var. pentachaeta]
                                                   [Dyssodia pentachaeta]
                                               Thymophylla pentachaeta var. belenidium
                                                     [Dyssodia pentachaeta var. belenidium]
                                                     [Dyssodia thurberi]
                                               Thymophylla pentachaeta var. pentachaeta
                                             Thymophylla setifolia
                                                   [Dyssodia setifolia var. setifolia]
                                                   [Dyssodia setifolia]
                                                   [Hymenatherum setifolium]
                                               Thymophylla setifolia var. radiata
                                                     [Dyssodia setifolia var. radiata]
                                                     [Hymenatherum setifolium var. radiatum]
                                                     [Thymophylla setifolia var. greggii]
                                             Thymophylla tenuifolia
                                                   [Dyssodia tenuifolia]
                                             Thymophylla tenuiloba
                                                   [Dyssodia tenuiloba subsp. tenuiloba]
                                                   [Dyssodia tenuiloba var. tenuiloba]
                                                   [Dyssodia tenuiloba]
                                               Thymophylla tenuiloba var. tenuiloba
                                               Thymophylla tenuiloba var. treculii
                                                     [Dyssodia tenuiloba var. treculii]
                                                     [Hymenatherum treculii]
                                               Thymophylla tenuiloba var. wrightii
                                                     [Dyssodia tenuiloba subsp. wrightii]
                                                     [Dyssodia wrightii]
                                                     [Hymenatherum wrightii]
                                             Thymophylla tephroleuca
                                     Tilesia
                                             Tilesia baccata
                                                   [Wulffia baccata]
                                               Tilesia baccata var. discoidea
                                                     [Wulffia baccata var. discoidea]
                                     Tithonia
                                             Tithonia brachypappa
                                             Tithonia calva
                                                   [Gymnolomia calva]
                                               Tithonia calva var. auriculata
                                                     [Gymnolomia auriculata]
                                               Tithonia calva var. lancifolia
                                                     [Gymnolomia calva var. lancifolia]
                                             Tithonia diversifolia
                                             Tithonia fruticosa
                                             Tithonia hondurensis
                                             Tithonia longiradiata
                                             Tithonia pedunculata
                                             Tithonia rotundifolia
                                             Tithonia thurberi
                                                   [Tithonia palmeri]
                                             Tithonia tubaeformis
                                             Tithonia tubiformis
                                     Toiyabea
                                             Toiyabea alpina
                                                   [Haplopappus alpinus]
                                     Tolpis
                                             Tolpis barbata
                                                   [Crepis barbata]
                                                   [Tolpis umbellata]
                                             Tolpis capensis
                                             Tolpis laciniata
                                             Tolpis staticifolia
                                             Tolpis succulenta
                                             Tolpis umbellata
                                             Tolpis webbii
                                     Tomentaurum
                                             Tomentaurum niveum
                                                   [Chrysopsis nivea]
                                     Tonestus
                                             Tonestus eximius
                                                   [Haplopappus eximius]
                                             Tonestus graniticus
                                                   [Haplopappus graniticus]
                                             Tonestus lyallii
                                                   [Haplopappus lyallii]
                                                   [Hoorebekia lyallii]
                                                   [Pyrrocoma lyallii]
                                                   [Stenotus lyallii]
                                             Tonestus peirsonii
                                                   [Haplopappus eximius subsp. peirsonii]
                                                   [Haplopappus peirsonii]
                                                   [Lorandersonia peirsonii]
                                             Tonestus pygmaeus
                                     Townsendia
                                             Townsendia annua
                                             Townsendia aprica
                                             Townsendia condensata
                                                   [Townsendia condensata var. condensata]
                                             Townsendia eximia
                                             Townsendia exscapa
                                                   [Townsendia sericea]
                                             Townsendia fendleri
                                             Townsendia florifera
                                             Townsendia formosa
                                             Townsendia glabella
                                             Townsendia grandiflora
                                             Townsendia hookeri
                                             Townsendia incana
                                                   [Townsendia incana var. ambigua]
                                             Townsendia jonesii
                                                   [Townsendia jonesii var. tumulosa]
                                                   [Townsendia mensana var. jonesii]
                                               Townsendia jonesii var. jonesii
                                             Townsendia leptotes
                                                   [Townsendia sericea var. leptotes]
                                             Townsendia mensana
                                             Townsendia mimina
                                                   [Townsendia montana var. minima]
                                             Townsendia montana
                                                   [Townsendia alpigena]
                                                   [Townsendia montana var. caelilinensis]
                                             Townsendia parryi
                                             Townsendia rothrockii
                                             Townsendia scapigera
                                             Townsendia smithii
                                             Townsendia strigosa
                                                   [Townsendia incana var. prolixa]
                                             Townsendia texensis
                                     Tracyina
                                             Tracyina rostrata
                                     Tragoceros
                                     Tragopogon
                                             Tragopogon dubius
                                                   [Tragopogon major subsp. dubius]
                                             Tragopogon hybridus
                                             Tragopogon lamottei
                                             Tragopogon major
                                             Tragopogon mirus
                                             Tragopogon miscellus
                                             Tragopogon porrifolius
                                             Tragopogon pratensis
                                     Trichocline
                                             Trichocline macrocephala
                                                   [Trichocline foliosa]
                                     Trichocoronis
                                             Trichocoronis wrightii
                                                   [Biolettia riparia]
                                                   [Trichocoronis wrightii var. wigginsii]
                                               Trichocoronis wrightii var. wrightii
                                                     [Biolettia riparia]
                                                     [Trichocoronis riparia]
                                     Trichocoryne
                                             Trichocoryne connata
                                     Trichogonia
                                             Trichogonia villosa
                                     Trichogoniopsis
                                             Trichogoniopsis podocarpa
                                     Trichoptilium
                                             Trichoptilium incisum
                                                   [Psathyrotes incisa]
                                     Trichymenia
                                     Tridax
                                             Tridax angustifolia
                                             Tridax balbisioides
                                             Tridax bicolor
                                             Tridax brachylepis
                                             Tridax candidissima
                                             Tridax coronopifolia
                                             Tridax dubia
                                             Tridax hintonii
                                                   [Cymophora hintonii]
                                             Tridax luisana
                                             Tridax mexicana
                                             Tridax obovata
                                             Tridax palmeri
                                                   [Tridax palmeri var. indivisa]
                                             Tridax platyphylla
                                                   [Tridax scabrida]
                                             Tridax procumbens
                                             Tridax purpurea
                                             Tridax purpusii
                                             Tridax rosea
                                             Tridax tenuifolia
                                             Tridax yecorana
                                     Trigonospermum
                                             Trigonospermum adenostemmoides
                                             Trigonospermum annuum
                                             Trigonospermum auriculatum
                                             Trigonospermum melampodioides
                                                   [Trigonospermum floribundum]
                                                   [Trigonospermum hispidulum]
                                     Trilisa
                                     Trimorpha
                                             Trimorpha acris
                                     Triniteurybia
                                             Triniteurybia aberrans
                                                   [Haplopappus aberrans]
                                                   [Macronema aberrans]
                                                   [Tonestus aberrans]
                                     Tripleurospermum
                                             Tripleurospermum disciforme
                                             Tripleurospermum hookeri
                                                   [Tripleurospermum maritimum subsp. phaeocephalum]
                                             Tripleurospermum inodorum
                                                   [Chamaemelum inodorum]
                                                   [Chamomilla inodora]
                                                   [Chrysanthemum inodorum]
                                                   [Chrysanthemum maritimum var. inodorum]
                                                   [Matricaria inodora]
                                                   [Matricaria maritima subsp. inodora]
                                                   [Matricaria maritima var. inodora]
                                                   [Matricaria perforata]
                                                   [Pyrethrum inodorum]
                                                   [Rhytidospermum inodorum]
                                                   [Tripleurospermum maritimum subsp. inodorum]
                                             Tripleurospermum maritimum
                                                   [Chamomilla maritima]
                                                   [Matricaria inodora var. maritima]
                                                   [Matricaria maritima]
                                                   [Tripleurospermum inodorum var. maritimum]
                                               Tripleurospermum maritimum subsp. maritimum
                                                     [Matricaria maritima]
                                             Tripleurospermum parviflorum
                                             Tripleurospermum perforatum
                                     Tripolium
                                     Tripteris
                                             Tripteris oppositifolia
                                     Triptilion
                                             Triptilion cordifolium
                                             Triptilion spinosum
                                     Trixis
                                             Trixis angustifolia
                                             Trixis cacalioides
                                             Trixis californica
                                                   [Trixis suffruticosa]
                                               Trixis californica var. californica
                                               Trixis californica var. peninsularis
                                                     [Trixis peninsularis]
                                             Trixis chiapensis
                                             Trixis divaricata
                                               Trixis divaricata subsp. discolor
                                                     [Trixis divaricata f. petiolata]
                                               Trixis divaricata subsp. divaricata
                                                     [Trixis antimenorrhoea]
                                                     [Trixis divaricata f. subpetiolata]
                                             Trixis hassleri
                                             Trixis hyposericea
                                             Trixis inula
                                                   [Trixis radialis]
                                             Trixis lessingii
                                                   [Trixis lessingii var. glabrata]
                                             Trixis megalophylla
                                             Trixis mexicana
                                               Trixis mexicana var. macradenia
                                               Trixis mexicana var. mexicana
                                             Trixis nelsonii
                                             Trixis praestans
                                             Trixis pringlei
                                             Trixis pterocaulis
                                                   [Trixis wrightii]
                                     Troximon
                                             Troximon glaucum
                                     Tuckermannia
                                     Tussilago
                                             Tussilago farfara
                                     Urbinella
                                             Urbinella palmeri
                                     Uropappus
                                             Uropappus lindleyi
                                                   [Calais lindleyi]
                                                   [Microseris lindleyi]
                                                   [Microseris linearifolia]
                                                   [Uropappus linearifolius var. elatus]
                                                   [Uropappus linearifolius]
                                     Urospermum
                                             Urospermum picroides
                                                   [Tragopogon picroides]
                                     Ursinia
                                             Ursinia anethoides
                                             Ursinia anthemoides
                                             Ursinia nana
                                               Ursinia nana subsp. nana
                                             Ursinia sericea
                                     Vanclevea
                                     Varilla
                                             Varilla mexicana
                                             Varilla texana
                                     Venegasia
                                             Venegasia carpesioides
                                     Venidium
                                     Verbesina
                                             Verbesina abscondita
                                             Verbesina agricolarum
                                             Verbesina alternifolia
                                                   [Actinomeris alternifolia]
                                             Verbesina angustifolia
                                             Verbesina apiculata
                                             Verbesina apleura
                                             Verbesina arborescens
                                             Verbesina barclayae
                                             Verbesina breedlovei
                                             Verbesina carangolensis
                                             Verbesina chiapensis
                                             Verbesina chihuahuensis
                                             Verbesina coahuilensis
                                               Verbesina coahuilensis var. viridior
                                             Verbesina crassipes
                                             Verbesina crocata
                                                   [Verbesina ovatifolia]
                                             Verbesina cronquistii
                                             Verbesina cymbipalea
                                             Verbesina dissita
                                             Verbesina encelioides
                                                   [Verbesina encelioides var. cana]
                                               Verbesina encelioides subsp. encelioides
                                                     [Verbesina encelioides var. encelioides]
                                               Verbesina encelioides subsp. exauriculata
                                                     [Verbesina encelioides var. exauriculata]
                                                     [Ximenesia encelioides var. exauriculata]
                                             Verbesina erosa
                                             Verbesina fastigiata
                                                   [Verbesina ampla]
                                                   [Verbesina greenmanii]
                                             Verbesina fayi
                                             Verbesina felgeri
                                             Verbesina fraseri
                                             Verbesina furfuracea
                                             Verbesina fusiformis
                                             Verbesina gigantea
                                             Verbesina glaucophylla
                                             Verbesina gracilipes
                                             Verbesina grandis
                                             Verbesina grayi
                                                   [Achaenipodium discoideum]
                                                   [Verbesina discoidea]
                                                   [Verbesina heterocarpa]
                                             Verbesina guatemalensis
                                                   [Verbesina guatemalensis var. glabrata]
                                                   [Verbesina medullosa]
                                             Verbesina guerreroana
                                             Verbesina hastata
                                             Verbesina helianthoides
                                             Verbesina holwayi
                                                   [Verbesina holwayi var. megacephala]
                                             Verbesina hypargyrea
                                             Verbesina hypoglauca
                                             Verbesina hypsela
                                             Verbesina jacksonii
                                             Verbesina juxtlahuacensis
                                             Verbesina klattii
                                             Verbesina lanata
                                             Verbesina langlassei
                                             Verbesina leprosa
                                             Verbesina liebmannii
                                                   [Verbesina variabilis]
                                             Verbesina lindheimeri
                                             Verbesina longifolia
                                             Verbesina longipes
                                             Verbesina lottiana
                                             Verbesina luisana
                                             Verbesina lundellii
                                             Verbesina macvaughii
                                             Verbesina microptera
                                             Verbesina mixtecana
                                             Verbesina montanoifolia
                                               Verbesina montanoifolia var. leptopoda
                                               Verbesina montanoifolia var. montanoifolia
                                             Verbesina myriocephala
                                             Verbesina nana
                                             Verbesina neriifolia
                                             Verbesina nudipes
                                             Verbesina oaxacana
                                             Verbesina occidentalis
                                             Verbesina oligantha
                                             Verbesina oligocephala
                                                   [Verbesina palmeri subsp. oligocephala]
                                             Verbesina olsenii
                                             Verbesina oncophora
                                                   [Verbesina oncophora var. subhamata]
                                             Verbesina oreophila
                                             Verbesina otophylla
                                             Verbesina pallens
                                                   [Verbesina punctata]
                                             Verbesina palmeri
                                             Verbesina pantoptera
                                             Verbesina parviflora
                                               Verbesina parviflora var. zacatecana
                                             Verbesina pauciflora
                                             Verbesina pellucida
                                             Verbesina peninsularis
                                                   [Verbesina cayucensis]
                                             Verbesina pentalobifolia
                                             Verbesina persicifolia
                                                   [Verbesina lindenii]
                                             Verbesina perymenioides
                                                   [Verbesina steyermarkii]
                                             Verbesina petrophila
                                             Verbesina petzalensis
                                             Verbesina pleistocephala
                                             Verbesina potosina
                                             Verbesina pterocarpha
                                             Verbesina purpusii
                                             Verbesina pustulata
                                             Verbesina resinosa
                                             Verbesina robinsonii
                                                   [Otopappus alternifolius]
                                             Verbesina rothrockii
                                                   [Ancistrophora wrightii]
                                             Verbesina scabrida
                                                   [Verbesina costata]
                                             Verbesina sericea
                                             Verbesina serrata
                                             Verbesina sodiroi
                                             Verbesina sororia
                                             Verbesina sousae
                                             Verbesina sphaerocephala
                                                   [Zexmenia pustulata]
                                             Verbesina stenophylla
                                             Verbesina strotheri
                                             Verbesina synotis
                                             Verbesina tapantiana
                                             Verbesina tetraptera
                                             Verbesina trilobata
                                             Verbesina turbacensis
                                                   [Verbesina sublobata]
                                             Verbesina virgata
                                                   [Verbesina cinerascens]
                                             Verbesina virginica
                                     Vernonanthura
                                             Vernonanthura alamanii
                                                   [Vernonia alamanii]
                                             Vernonanthura almedae
                                                   [Vernonia almedae]
                                             Vernonanthura cichoriifolia
                                                   [Vernonia cichoriiflora]
                                             Vernonanthura cordata
                                                   [Vernonia cordata var. hooveri]
                                                   [Vernonia cordata]
                                                   [Vernonia morelana]
                                             Vernonanthura divaricata
                                                   [Conyza divaricata]
                                             Vernonanthura liatroides
                                                   [Vernonia ehrenbergiana]
                                                   [Vernonia liatroides subsp. ehrenbergiana]
                                                   [Vernonia liatroides subsp. gentryi]
                                             Vernonanthura nudiflora
                                                   [Vernonia nudiflora]
                                             Vernonanthura oaxacana
                                                   [Vernonia oaxacana]
                                             Vernonanthura patens
                                                   [Vernonia aschenborniana]
                                                   [Vernonia baccharoides]
                                                   [Vernonia deppeana]
                                                   [Vernonia viarum]
                                             Vernonanthura phosphorica
                                                   [Vernonia patens]
                                             Vernonanthura sambrayana
                                                   [Vernonia sambrayana]
                                             Vernonanthura serratuloides
                                                   [Perezia nervata]
                                                   [Vernonia serratuloides]
                                                   [Vernonia umbellifera]
                                             Vernonanthura sinclairii
                                                   [Vernonia sinclairii]
                                             Vernonanthura squamulosa
                                                   [Vernonia squamulosa]
                                             Vernonanthura vinhae
                                                   [Vernonia vinhae]
                                             Vernonanthura viscidula
                                                   [Vernonia viscidula]
                                     Vernonia
                                             Vernonia acaulis
                                             Vernonia acuminata
                                             Vernonia angustifolia
                                                   [Vernonia angustifolia subsp. scaberrima]
                                             Vernonia arborea
                                             Vernonia arkansana
                                             Vernonia baillonii
                                             Vernonia baldwinii
                                                   [Vernonia baldwinii subsp. interior]
                                                   [Vernonia baldwinii var. interior]
                                               Vernonia baldwinii subsp. baldwinii
                                             Vernonia bealliae
                                             Vernonia camporum
                                             Vernonia cephalophora
                                             Vernonia divaricata
                                             Vernonia echioides
                                             Vernonia fasciculata
                                                   [Vernonia fasciculata subsp. corymbosa]
                                               Vernonia fasciculata subsp. fasciculata
                                             Vernonia flaccidifolia
                                             Vernonia floccosa
                                             Vernonia gigantea
                                                   [Vernonia altissima]
                                                   [Vernonia gigantea subsp. ovalifolia]
                                                   [Vernonia ovalifolia]
                                               Vernonia gigantea subsp. gigantea
                                             Vernonia glauca
                                             Vernonia greggii
                                               Vernonia greggii subsp. ervendbergii
                                                     [Vernonia liatroides subsp. liatroides]
                                                     [Vernonia liatroides]
                                               Vernonia greggii subsp. greggii
                                                     [Vernonia taylorae]
                                               Vernonia greggii subsp. schaffneri
                                             Vernonia karvinskiana
                                               Vernonia karvinskiana subsp. inuloides
                                                     [Vernonia inuloides]
                                               Vernonia karvinskiana subsp. karvinskiana
                                                     [Vernonia corymbiformis]
                                             Vernonia lancifolia
                                             Vernonia lindheimeri
                                             Vernonia marginata
                                             Vernonia missurica
                                                   [Vernonia drummondii]
                                             Vernonia noveboracensis
                                             Vernonia phanerophlebia
                                             Vernonia squarrosa
                                             Vernonia staehelinoides
                                             Vernonia texana
                                             Vernonia vernonioides
                              Vernonioideae
                                     Ageratinastrum
                                             Ageratinastrum polyphyllum
                                     Cullumia
                                             Cullumia ciliaris
                                             Cullumia decurrens
                                             Cullumia setosa
                                             Cullumia squarrosa
                                     Cuspidia
                                             Cuspidia cernua
                                     Didelta
                                             Didelta carnosa
                                             Didelta spinosa
                                     Eremothamnus
                                             Eremothamnus marlothianus
                                     Erlangea
                                             Erlangea calycina
                                             Erlangea misera
                                     Ethulia
                                             Ethulia conyzoides
                                             Ethulia scheffleri
                                             Ethulia vernonioides
                                     Gutenbergia
                                             Gutenbergia cordifolia
                                                   [Erlangea cordifolia]
                                               Gutenbergia cordifolia var. marginata
                                             Gutenbergia gossweileri
                                             Gutenbergia petersii
                                             Gutenbergia polycephala
                                             Gutenbergia rueppellii
                                               Gutenbergia rueppellii var. fischeri
                                     Herderia
                                             Herderia truncata
                                     Lachnorhiza
                                             Lachnorhiza piloselloides
                                     Lychnocephalus
                                             Lychnocephalus sellovii
                                                   [Lychnophora sellovii]
                                     Moquinia
                                             Moquinia racemosa
                                     Piptolepis
                                             Piptolepis schultziana
                                     Pleurocarpaea
                                             Pleurocarpaea denticulata
                                     Vernoniopsis
                                             Vernoniopsis caudata
                                     Vesicarpa
                                     Vicoa
                                             Vicoa indica
                                                   [Pentanema indicum]
                                     Vigethia
                                             Vigethia mexicana
                                     Viguiera
                                             Viguiera cordata
                                             Viguiera dentata
                                                   [Encelia montana]
                                                   [Viguiera dentata var. lancifolia]
                                                   [Viguiera helianthoides]
                                                   [Viguiera longiligula]
                                               Viguiera dentata var. dentata
                                             Viguiera grammatoglossa
                                             Viguiera leptodonta
                                             Viguiera maculata
                                                   [Encelia maculata]
                                             Viguiera oligantha
                                             Viguiera pazensis
                                     Villanova
                                             Villanova oppositifolia
                                     Vilobia
                                     Virgulaster
                                     Virgulus
                                     Vittadinia
                                             Vittadinia nullarborensis
                                     Volutarella
                                     Volutaria
                                             Volutaria canariensis
                                             Volutaria muricata
                                                   [Amberboa muricata]
                                                   [Centaurea muricata]
                                                   [Cyanopsis muricata]
                                                   [Volutarella muricata]
                                             Volutaria saharae
                                                   [Amberboa saharae]
                                             Volutaria tubuliflora
                                     Wamalchitamia
                                             Wamalchitamia aurantiaca
                                             Wamalchitamia dionysi
                                             Wamalchitamia strigosa
                                             Wamalchitamia williamsii
                                     Weberaster
                                     Werneria
                                             Werneria nubigena
                                     Whitneya
                                     Wilkesia
                                             Wilkesia gymnoxiphium
                                     Wollastonia
                                             Wollastonia biflora
                                                   [Wedelia biflora]
                                             Wollastonia fauriei
                                                   [Lipochaeta fauriei]
                                             Wollastonia integrifolia
                                                   [Lipochaeta integrifolia]
                                             Wollastonia kamolensis
                                                   [Lipochaeta kamolensis]
                                             Wollastonia lavarum
                                                   [Lipochaeta lavarum]
                                             Wollastonia micrantha
                                               Wollastonia micrantha subsp. exigua
                                                     [Lipochaeta exigua]
                                             Wollastonia subcordata
                                                   [Lipochaeta subcordata]
                                             Wollastonia uniflora
                                                   [Wedelia uniflora]
                                     Wulffia
                                     Wyethia
                                             Wyethia amplexicaulis
                                                   [Wyethia amplexicaulis subsp. major]
                                                   [Wyethia lanceolata]
                                             Wyethia angustifolia
                                                   [Alarconia angustifolia]
                                                   [Wyethia angustifolia var. foliosa]
                                                   [Wyethia foliosa]
                                             Wyethia arizonica
                                             Wyethia bolanderi
                                                   [Agnorhiza bolanderi]
                                                   [Balsamorhiza bolanderi]
                                             Wyethia elata
                                                   [Agnorhiza elata]
                                             Wyethia glabra
                                             Wyethia helenioides
                                                   [Alarconia helenioides]
                                             Wyethia helianthoides
                                             Wyethia invenusta
                                                   [Agnorhiza invenusta]
                                                   [Balsamorhiza invenusta]
                                                   [Helianthus invenustus]
                                             Wyethia longicaulis
                                             Wyethia mollis
                                             Wyethia ovata
                                                   [Agnorhiza ovata]
                                             Wyethia reticulata
                                                   [Agnorhiza reticulata]
                                             Wyethia × cusickii
                                     Wyomingia
                                     Xanthisma
                                             Xanthisma arenarium
                                                   [Haplopappus arenarius var. rossii]
                                                   [Haplopappus arenarius]
                                                   [Machaeranthera arenaria]
                                             Xanthisma blephariphyllum
                                                   [Eriocarpum serratum]
                                                   [Machaeranthera blephariphylla]
                                             Xanthisma coloradoense
                                                   [Machaeranthera coloradoensis]
                                             Xanthisma gracile
                                                   [Dieteria gracilis]
                                                   [Eriocarpum gracile]
                                                   [Haplopappus gracilis]
                                                   [Machaeranthera gracilis]
                                                   [Sideranthus gracilis]
                                             Xanthisma grindelioides
                                                   [Eriocarpum grindelioides]
                                                   [Haplopappus nuttallii]
                                                   [Machaeranthera grindelioides var. grindelioides]
                                                   [Machaeranthera grindelioides]
                                               Xanthisma grindelioides var. depressum
                                                     [Machaeranthera grindelioides var. depressa]
                                               Xanthisma grindelioides var. grindelioides
                                             Xanthisma gymnocephalum
                                                   [Machaeranthera gymnocephala]
                                             Xanthisma gypsophilum
                                                   [Machaeranthera gypsophila]
                                             Xanthisma junceum
                                                   [Eriocarpum junceum]
                                                   [Haplopappus junceus]
                                                   [Machaeranthera juncea]
                                                   [Sideranthus junceus]
                                             Xanthisma restiforme
                                                   [Machaeranthera restiformis]
                                             Xanthisma scabrellum
                                                   [Haplopappus spinulosus subsp. scabrellus]
                                                   [Haplopappus spinulosus var. scabrellus]
                                                   [Machaeranthera pinnatifida var. scabrella]
                                                   [Machaeranthera scabrella]
                                                   [Xanthisma spinulosum var. scabrellum]
                                             Xanthisma spinulosum
                                                   [Diplopappus pinnatifidus]
                                                   [Eriocarpum spinulosum]
                                                   [Haplopappus arenarius var. incisifolius]
                                                   [Haplopappus spinulosus subsp. australis]
                                                   [Haplopappus spinulosus subsp. incisifolius]
                                                   [Haplopappus spinulosus var. turbinellus]
                                                   [Machaeranthera australis]
                                                   [Machaeranthera pinnatifida subsp. pinnatifida]
                                                   [Machaeranthera pinnatifida var. incisifolia]
                                                   [Machaeranthera pinnatifida var. pinnatifida]
                                                   [Machaeranthera pinnatifida]
                                                   [Xanthisma incisifolium]
                                               Xanthisma spinulosum var. chihuahuanum
                                                     [Machaeranthera pinnatifida var. chihuahuana]
                                               Xanthisma spinulosum var. glaberrimum
                                               Xanthisma spinulosum var. gooddingii
                                                     [Aplopappus gooddingi]
                                                     [Haplopappus gooddingi]
                                                     [Haplopappus gooddingii]
                                                     [Haplopappus spinulosus subsp. gooddingi]
                                                     [Haplopappus spinulosus subsp. gooddingii]
                                                     [Haplopappus spinulosus var. gooddingi]
                                                     [Haplopappus spinulosus var. gooddingii]
                                                     [Machaeranthera pinnatifida subsp. gooddingii]
                                                     [Machaeranthera pinnatifida var. gooddingii]
                                                     [Sideranthus gooddingi]
                                                     [Sideranthus gooddingii]
                                               Xanthisma spinulosum var. spinulosum
                                             Xanthisma stenolobum
                                                   [Machaeranthera stenoloba]
                                             Xanthisma texanum
                                               Xanthisma texanum var. drummondii
                                                     [Xanthisma texanum subsp. drummondii]
                                               Xanthisma texanum var. texanum
                                             Xanthisma viscidum
                                             Xanthisma wigginsii
                                                   [Haplopappus wigginsii]
                                                   [Machaeranthera wigginsii]
                                     Xanthium
                                             Xanthium chinense
                                                   [Xanthium decalvatum]
                                             Xanthium orientale
                                                   [Xanthium californicum]
                                                   [Xanthium canadense]
                                                   [Xanthium echinatum]
                                                   [Xanthium orientale subsp. italicum]
                                                   [Xanthium oviforme]
                                                   [Xanthium saccharatum]
                                                   [Xanthium speciosum]
                                                   [Xanthium strumarium var. canadense]
                                                   [Xanthium strumarium var. glabratum]
                                                   [Xanthium strumarium var. wootonii]
                                                   [Xanthium varians]
                                             Xanthium spinosum
                                                   [Acanthoxanthium spinosum]
                                                   [Xanthium spinosum subsp. spinosum]
                                             Xanthium strumarium
                                                   [Xanthium calvum]
                                                   [Xanthium sibiricum]
                                                   [Xanthium strumarium subsp. sibiricum]
                                                   [Xanthium strumarium subsp. strumarium]
                                                   [Xanthium strumarium var. strumarium]
                                     Xanthocephalum
                                             Xanthocephalum benthamianum
                                             Xanthocephalum centauroides
                                             Xanthocephalum gymnospermoides
                                               Xanthocephalum gymnospermoides subsp. eradiatum
                                                     [Xanthocephalum eradiatum]
                                                     [Xanthocephalum gymnospermoides var. eradiatum]
                                               Xanthocephalum gymnospermoides subsp. gymnospermoides
                                                     [Grindelia gymnospermoides]
                                               Xanthocephalum gymnospermoides var. gymnospermoides
                                             Xanthocephalum humile
                                     Xantophtalmum
                                     Xenophyllum
                                             Xenophyllum acerosum
                                                   [Werneria acerosa]
                                     Xeranthemum
                                             Xeranthemum annuum
                                             Xeranthemum cylindraceum
                                     Xerochrysum
                                             Xerochrysum bracteatum
                                                   [Gnaphalium bicolor]
                                                   [Helichrysum bracteatum]
                                                   [Helichrysum lucidum]
                                             Xerochrysum milliganii
                                                   [Helichrysum milliganii]
                                             Xerochrysum viscosum
                                                   [Helichrysum bracteatum var. viscosum]
                                     Ximenesia
                                             Ximenesia encelioides
                                     Xylanthemum
                                             Xylanthemum pamiricum
                                                   [Pyrethrum kermanense]
                                     Xylorhiza
                                             Xylorhiza cognata
                                                   [Aster cognatus]
                                                   [Machaeranthera cognata]
                                             Xylorhiza confertifolia
                                                   [Machaeranthera glabriuscula var. confertifolia]
                                             Xylorhiza frutescens
                                                   [Machaeranthera frutescens]
                                             Xylorhiza glabriuscula
                                                   [Machaeranthera glabriuscula]
                                             Xylorhiza linearifolia
                                                   [Xylorhiza glabriuscula var. linearifolia]
                                             Xylorhiza orcuttii
                                                   [Aster orcuttii]
                                                   [Machaeranthera orcuttii]
                                             Xylorhiza tortifolia
                                                   [Aster abatus]
                                                   [Aster tortifolius]
                                                   [Haplopappus tortifolius]
                                                   [Machaeranthera tortifolia var. tortifolia]
                                                   [Machaeranthera tortifolia]
                                                   [Wyethia ovata var. funerea]
                                                   [Xylorhiza scopulorum]
                                               Xylorhiza tortifolia var. imberbis
                                                     [Machaeranthera tortifolia var. imberbis]
                                               Xylorhiza tortifolia var. tortifolia
                                             Xylorhiza venusta
                                             Xylorhiza wrightii
                                                   [Machaeranthera wrightii]
                                     Xylothamia
                                     Youngia
                                             Youngia atripappa
                                                   [Crepis gracilis]
                                             Youngia bifurcata
                                             Youngia cineripappa
                                             Youngia conjunctiva
                                             Youngia erythrocarpa
                                             Youngia fusca
                                             Youngia heterophylla
                                             Youngia japonica
                                               Youngia japonica subsp. elstonii
                                               Youngia japonica subsp. japonica
                                                     [Crepis japonica]
                                                     [Youngia thunbergiana]
                                               Youngia japonica subsp. longiflora
                                               Youngia japonica var. japonica
                                             Youngia lanata
                                             Youngia paleacea
                                             Youngia pygmaea
                                             Youngia rubida
                                     Zaluzania
                                             Zaluzania augusta
                                             Zaluzania discoidea
                                             Zaluzania grayana
                                                   [Viguiera triloba]
                                             Zaluzania megacephala
                                             Zaluzania montagnaefolia
                                             Zaluzania montagnifolia
                                             Zaluzania parthenioides
                                             Zaluzania pringlei
                                             Zaluzania subcordata
                                             Zaluzania triloba
                                     Zandera
                                             Zandera blakei
                                                   [Sigesbeckia blakei]
                                                   [Trigonospermum blakei]
                                             Zandera hartmanii
                                                   [Sigesbeckia hartmanii]
                                     Zemisia
                                             Zemisia thomasii
                                                   [Senecio thomasii]
                                     Zexmenia
                                             Zexmenia serrata
                                                   [Verbesina sylvicola]
                                             Zexmenia virgulta
                                                   [Zexmenia chiapensis]
                                     Zinnia
                                             Zinnia acerosa
                                                   [Zinnia pumila]
                                               Zinnia acerosa var. acerosa
                                             Zinnia americana
                                                   [Melampodium anomalum]
                                                   [Tragoceros americanum]
                                             Zinnia angustifolia
                                               Zinnia angustifolia var. angustifolia
                                               Zinnia angustifolia var. greggii
                                                     [Zinnia greggii]
                                               Zinnia angustifolia var. littoralis
                                                     [Zinnia littoralis]
                                             Zinnia bicolor
                                             Zinnia elegans
                                                   [Zinnia linearis]
                                                   [Zinnia violacea]
                                             Zinnia flavicoma
                                                   [Tragoceros flavicomum]
                                                   [Zinnia jugistyla]
                                             Zinnia grandiflora
                                             Zinnia guanajuatensis
                                                   [Zinnia acerosa var. guanajuatensis]
                                             Zinnia haageana
                                             Zinnia juniperifolia
                                             Zinnia leucoglossa
                                             Zinnia maritima
                                               Zinnia maritima var. palmeri
                                             Zinnia peruviana
                                                   [Zinnia hybrida]
                                                   [Zinnia multiflora]
                                                   [Zinnia tenuiflora]
                                                   [Zinnia verticillata]
                                             Zinnia purpusii
                                             Zinnia tenuis
                                                   [Sanvitalia tenuis]
                                             Zinnia venusta
                                                   [Tragoceros venustum]
                                             Zinnia zamudiana
                                             Zinnia zinnioides
                                                   [Tragoceros zinnioides]
                                     Zollikoferia
                                     Zonanthemis

Problematic Rooting (188544)
                                     Arbuscula
                                               Artemisia arbuscula subsp. longicaulis

Problematic Rooting (201819)
                                               Achillea lanulosa subsp. lanulosa

Problematic Rooting (202900)
                                               Chrysothamnus nauseosus subsp. nauseosus

Problematic Rooting (205892)
                                               Jacobaea vulgaris subsp. vulgaris
                                                     [Senecio jacobaea]
                                                     [Senecio tremolsii]

Problematic Rooting (208297)
                                               Actinea acaulis var. lanata
                                               Actinea acaulis var. simplex

Problematic Rooting (212567)
                                               Acourtia rigida var. acuminata
                                               Acourtia rigida var. linearifolia
                                               Acourtia rigida var. rigida

Problematic Rooting (213097)
                                               Aster praealtus var. praealtus

Problematic Rooting (213109)
                                               Aster tenuifolius var. tenuifolius

Problematic Rooting (214131)
                                               Centaurea nigra subsp. carpetana

Problematic Rooting (215188)
                                               Dyssodia tenuiloba var. tenuiloba

Problematic Rooting (215317)
                                               Erechtites hieraciifolia var. megalocarpa
                                                     [Erechtites megalocarpa]

Problematic Rooting (225566)
                                               Actinea scaposa var. linearis
                                               Actinea scaposa var. scaposa

Problematic Rooting (225699)
                                               Aster umbellatus var. umbellatus

Problematic Rooting (231977)
                                             Cineraria albicans
                                             Cineraria alchemilloides
                                             Cineraria aspera
                                             Cineraria atriplicifolia
                                             Cineraria canescens
                                             Cineraria decipiens
                                             Cineraria deltoidea
                                                   [Cineraria monticola]
                                             Cineraria erodioides
                                             Cineraria geifolia
                                             Cineraria geraniifolia
                                             Cineraria grandiflora
                                             Cineraria lobata
                                               Cineraria lobata subsp. lobata
                                               Cineraria lobata subsp. soutpansbergensis
                                             Cineraria parvifolia
                                             Cineraria platycarpa
                                             Cineraria pulchra
                                             Cineraria vallis-pacis

Problematic Rooting (249857)
                                               Kalimeris indica subsp. indica
                                                     [Boltonia indica]

Problematic Rooting (264134)
                                               Eriophyllum stoechadifolium var. artemisiaefolium
                                               Eriophyllum stoechadifolium var. artemisiifolium
                                               Eriophyllum stoechadifolium var. depressum

Problematic Rooting (265309)
                                               Senecio clevelandii var. heterophyllus

Problematic Rooting (271531)
                                               Linosyris viscidiflora var. puberula

Problematic Rooting (378807)
                                               Senecio hispidulus var. dissectus

Problematic Rooting (389965)
                                               Erigeron compositum var. discoideum