Vascular Plants of Santa Cruz County
Authors: Dylan Neubauer

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Families: 145
Genera: 672
Species: 1655
Total Taxa: 1723

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Synonym(s): Cistanthe monosperma (Greene) Hershk.; Spraguea umbellata Torr.
Synonym(s): Cistanthe parryi (A. Gray) Hershk. var. hesseae (J.H. Thomas) Kartesz & Gandhi
Synonym(s): Montia spathulata (Douglas ex Hooker) Howell, inval.
Synonym(s): Montia perfoliata (Donn ex Willd.) Howell f. parvifolia (Nutt. ex Hook.) J.T. Howell
Synonym(s): Montia spathulata (Douglas ex Hook.) Howell var. viridis Davidson
Synonym(s): Montia perfoliata (Willd.) Howell
Synonym(s): Montia perfoliata (Willd.) Howell var. depressa (A. Gray) Jeps.
Synonym(s): Montia sibirica (L.) Howell
Synonym(s): Montia hallii (Gray) Greene; Montia verna Necker
Non-native
Synonym(s): Myrica californica Cham. & Schltdl.
Non-native; Synonym(s): Anagallis arvensis L.; Anagallis arvensis L. f. azurea Hylander
Synonym(s): Trientalis borealis Raf. subsp. latifolia (Hook.) Hultén; Trientalis latifolia Hook.
Synonym(s): Anagallis minima (L.) E.H.L. Krause; Centunculus minimus L.
Synonym(s): Abronia umbellata Lam. subsp. umbellata
Synonym(s): Nuphar lutea (L.) Sm. subsp. polysepala (Engelm.) E.O. Beall
Non-native
Synonym(s): Oenothera campestris Greene; Oenothera campestris Greene subsp. parishii (Abrams) Munz
Synonym(s): Oenothera contorta Douglas
Synonym(s): Oenothera contorta Douglas var. strigulosa Munz; Oenothera strigulosa (Fisch. & C.A. Mey.) Torr. & A. Gray
Synonym(s): Camissonia cheiranthifolia (Hornem. ex Spreng.) Raim. subsp. cheiranthifolia; Oenothera cheiranthifolia Hornem. ex Spreng.
Synonym(s): Camissonia hirtella (Greene) P.H. Raven; Oenothera micrantha Hornem. ex Spreng. var. jonesii Munz
Synonym(s): Camissonia micrantha (Hornem. ex Spreng.) P.H. Raven; Oenothera micrantha Hornem. ex Spreng. var. micrantha
Synonym(s): Clarkia rubicunda (Lindl.) H. Lewis & M. Lewis subsp. blasdalei (Jeps.) H. Lewis & M. Lewis
Synonym(s): Epilobium paniculatum Nutt. ex Torr. & A. Gray forma adenocladon Jeps.; Epilobium paniculatum Nutt ex Torr. & A. Gray var. jucundum (A. Gray) Trel.; Epilobium paniculatum Nutt. ex Torr. & A. Gray var. laevicaule (Rydb.) Munz
Synonym(s): Zauschneria cana Greene; Zauschneria californica C. Presl subsp. californica
Synonym(s): Epilobium adenocaulon Hausskn. var. occidentale Trel.; Epilobium adenocaulon var. parishii (Trel.) Munz
Synonym(s): Epilobium franciscanum Barbey; Epilobium watsonii Barbey; Epilobium watsonii Barbey var. franciscanum (Barbey) Jeps.
Synonym(s): Boisduvalia densiflora (Lindl.) S. Watson
Synonym(s): Epilobium halleanum Hausskn., orthographic variant
Synonym(s): Boisduvalia stricta (A. Gray) Greene; Boisduvalia torreyi (S. Watson) S. Watson
Synonym(s): Ludwigia palustris (L.) Elliott var. pacifica Fernald & Griscom
Synonym(s): Oenothera hookeri Torr. & A. Gray. subsp. hookeri; Oenothera hookeri Torr. & A. Gray subsp. montereyensis Munz
Non-native; Synonym(s): Oenothera ×erythrosepala Borbás
Non-native; Synonym(s): Gaura sinuata Nutt. ex Ser.
Non-native; Synonym(s): Oenothera speciosa var. childsii (L.H. Bailey) Munz
Synonym(s): Camissonia ovata (Nutt. ex Torr. & A. Gray) P.H. Raven; Oenothera ovata Nutt.
Synonym(s): Botrychium multifidum (S.G. Gmel.) Rupr.; Botrychium multifidum (S.G. Gmel.) Rupr. var. intermedium; Botrychium multifidum (S.G. Gmel.) Rupr. subsp. silaifolium (Presl.) Clausen; Botrychium silaifolium Presl var. californicum (Underw.) Jeps.
Synonym(s): Corallorhiza maculata (Raf.) Raf. var. immaculata M. Peck
Synonym(s): Habenaria dilatata (Pursh) Hook. var. leucostachys (Lindl.) Hultén; Platanthera leucostachys Lindl.
Synonym(s): Habenaria elegans (Lindl.) Bolander; Habenaria elegans (Lindl.) Bol. var. maritima (Rydb) Ames; Piperia elegans (Lindl.) Rydb. subsp. elegans
Synonym(s): Habenaria unalascensis (Spreng.) S. Watson var. elata (Jeps.) Correll; Piperia elongata Rydb.
Synonym(s): Piperia candida Rand. Morgan & Ackerman
Synonym(s): Piperia michaelii (Greene) Rydb.
Synonym(s): Piperia transversa Suksd.
Synonym(s): Habenaria unalascensis (Spreng.) S. Watson; Habenaria unalascensis (Spreng.) S. Watson var. unalascensis; Habenaria unalascensis (Spreng.) Wats. subsp. unalascensis; Piperia unalascensis (Spreng.) Rydb.
Synonym(s): Spiranthes romanzoffiana Cham. var. porrifolia (Lindl.) Ames & Corell
Synonym(s): Spiranthes romanzoffiana Cham. var. romanzoffiana
Synonym(s): Orobanche fasciculata Nutt., misapplied; Orobanche fasciculata Nutt. var. franciscana Achey
Synonym(s): Orobanche pinorum Hook.
Synonym(s): Orobanche uniflora L., misapplied; Orobanche uniflora L. subsp. occidentalis (Greene) Ferris
Synonym(s): Orobanche robbinsii Heckard ex Colwell & Yatsk.
Synonym(s): Orobanche bulbosa Beck
Synonym(s): Orobanche californica Cham. & Schltdl. var. californica, misapplied; Orobanche vallicola (Jeps.) Heckard
Non-native; Synonym(s): Parentucellia viscosa (L.) Caruel
Synonym(s): Castilleja affinis Hook. & Arn. subsp. affinis
Synonym(s): Castilleja ambigua Hook. & Arn. subsp. ambigua
Synonym(s): Orthocarpus attenuatus A. Gray
Synonym(s): Castilleja densiflora (Benth.) T.I. Chuang & Heckard subsp. densiflora; Orthocarpus densiflorus Benth.
Synonym(s): Castilleja exserta (A. Heller) T.I. Chuang & Heckard subsp. exserta; Orthocarpus purpurascens Benth. var. purpurascens
Synonym(s): Castilleja exserta (A. Heller) T.I. Chuang & Heckard subsp. latifolia (S. Watson) T.I. Chuang & Heckard; Orthocarpus purpurascens Benth. var. latifolius S. Watson
Synonym(s): Castilleja stenantha A. Gray
Synonym(s): Castilleja rubicundula (Jeps.) T.I. Chuang & Heckard subsp. lithospermoides (Benth.) T.I. Chuang & Heckard; Orthocarpus lithospermoides Benth.
Synonym(s): Castilleja franciscana Pennell; Castilleja subinclusa Greene subsp. franciscana (Pennell) T.I. Chuang & Heckard
Synonym(s): Castilleja latifolia Hook. & Arn. var. wightii (Elmer) Zeile; Castilleja wightii Elmer subsp. rubra Pennell
Synonym(s): Boschniakia strobilacea A. Gray
Synonym(s): Orthocarpus erianthus Benth. var. erianthus
Synonym(s): Orthocarpus erianthus Benth. var. roseus A. Gray
Synonym(s): Orthocarpus micranthus Greene ex A. Heller; Orthocarpus erianthus Benth. var. micranthus (A. Gray) Jeps.
Synonym(s): Orthocarpus pusillus Benth.
Synonym(s): Orthocarpus faucibarbatus Gray subsp. albidus Keck; Orthocarpus faucibarbatus Gray var. albidus (Keck) Howell
Non-native; Synonym(s): Oxalis rubra A. St.-Hil.
Non-native
Non-native
Non-native; Synonym(s): Oxalis laxa Hook. & Arn., misapplied; Oxalis radicosa A. Rich.
Synonym(s): Oxalis albicans Kunth subsp. pilosa (Nutt.) G. Eiten
Synonym(s): Dicentra chrysantha (Hook. & Arn.) Walp.
Synonym(s): Hesperomecon linearis (Benth.) Greene var. pulchella (Greene) Jeps.; Meconella linearis (Benth.) A. Nelson & J.F. Macbr.
Synonym(s): Parnassia californica (A. Gray) Greene; Parnassia palustris L. var. californica A. Gray
Synonym(s): Diplacus aurantiacus (Curtis) Jeps. var. aurantiacus see Keil 2019b; Mimulus aurantiacus Curtis; Mimulus aurantiacus Curtis var. aurantiacus
Synonym(s): Mimulus congdonii B.L. Rob
Synonym(s): Mimulus cleistogamus J.T. Howell; Mimulus douglasii (Benth.) A. Gray
Synonym(s): Mimulus decurtatus A.L. Grant; Mimulus rattanii A. Gray; Mimulus rattanii A. Gray subsp. decurtatus (A.L. Grant) Pennell; Mimulus rattanii A. Gray var. decurtatus (A.L. Grant) Pennel
Synonym(s): Mimulus androsaceus Greene
Synonym(s): Mimulus guttatus DC. subsp. arenicola Pennell
Synonym(s): Mimulus guttatus DC. subsp. arvensis (Greene) Munz; Mimulus guttatus DC. var. arvensis (Greene) A.L. Grant; Mimulus guttatus DC. subsp. micranthus (A. Heller) Munz
Synonym(s): Mimulus cardinalis Benth.
Synonym(s): Mimulus floribundus Lindl.
Synonym(s): Mimulus grandis (Greene) A. Heller; Mimulus guttatus DC. subsp. arenicola Pennell; Mimulus guttatus DC. var. grandis Greene; Mimulus guttatus DC. subsp. litoralis Pennell
Synonym(s): Mimulus guttatus DC.; Mimulus guttatus DC. var. guttatus; Mimulus langsdorfii Greene
Synonym(s): Mimulus glareosus Greene; Mimulus guttatus DC. var. depauperatus (A. Gray) A.L. Grant; Mimulus guttatus DC. var. insignis Greene; Mimulus guttatus DC. var. microphyllus (Benth.) Pennell; Mimulus microphyllus Benth.
Synonym(s): Erythranthe inodora (Greene) G.L. Nesom; Erythranthe moniliformis (Greene) G.L. Nesom; Mimulus guttatus DC. var. moschatus (Douglas ex Lindl.); Mimulus moschatus Lindl.
Synonym(s): Mimulus guttatus DC. var. gracilis (A. Gray) G.R. Campbell; Mimulus guttatus DC. var. nasutus (Greene) Jepson; Mimulus langsdorfii Greene var. nasutus (Greene) Jepson; Mimulus nasutus Greene
Synonym(s): Mimulus moschatus Lindl. var. sessilifolius A. Gray
Synonym(s): Mimulus pilosus (Benth.) S. Watson
Synonym(s): Pinus californica Hartw., non Lois.-Deslong.; Pinus tuberculata Gord., non D. Don
Possibly non-native
Possibly non-native
Non-native; Synonym(s): Pinus ponderosa Dougl. ex Lawson; Pinus ponderosa Douglas ex Lawson & C. Lawson var. pacifica J.R. Haller & Vivrette
Synonym(s): Pinus benthamiana Hartw.; Pinus ponderosa Douglas ex C. Lawson subsp. benthamiana (Hartw.) Silba; Pinus ponderosa Douglas ex Lawson & C. Lawson var. pacifica J.R. Haller & Vivrette
Synonym(s): Asarina stricta (H. & A.) Penn.; Neogaerrhinum strictum (Hook. & Arn.) Rothm.
Synonym(s): Antirrhinum multiflorum Pennell, illegitimate; Antirrhinum glandulosum Lindl., illegitimate; Sairocarpus multiflorus D.A. Sutton
Synonym(s): Antirrhinum vexillo-calyculatum Kellogg; Antirrhinum vexillo-calyculatum Kellogg subsp. vexillo-calyculatum, orthographic variation; Sairocarpus vexillocalyculatus (Kellogg) D.A. Sutton subsp. vexillocalyculatus
Synonym(s): Callitriche bolanderi Hegelm.; Callitriche heterophylla Pursh subsp. bolanderi (Hegelm.) Calder & Roy L. Taylor
Synonym(s): Callitriche verna L.
Synonym(s): Collinsia bartsiaefolia Benth. var. hirsuta (Kellogg) Pennell in Thomas (1961)
Synonym(s): Collinsia franciscana Bioletti
Synonym(s): Penstemon corymbosus Benth.
Non-native
Synonym(s): Linaria canadensis (L.) Dum.Cours. var. texana (Scheele) Pennell; Linaria canadensis (L.) Chaz., in part, misapplied; Linaria texana Scheele
Synonym(s): Penstemon rattanii A. Gray subsp. kleei (Greene) Keck
Non-native; Synonym(s): Plantago indica L., superfluous; Plantago psyllium L., nomen ambiguum
Synonym(s): Plantago bigelovii A. Gray
Non-native
Synonym(s): Plantago juncoides Lamk. var. californica; Plantago juncoides Lamk. var. juncoides; Plantago maritima L. var. californica
Synonym(s): Plantago hirtella Kunth var. galeottiana (Decne.) Pilg.
Native status unknown
Synonym(s): Armeria maritima (Mill.) Willd. var. californica (Boiss.) G.H.M. Lawr.
Synonym(s): Agrostis blasdalei Hitchc. var. marinensis Crampton
Non-native; Synonym(s): Agrostis tenuis Sibth.
Synonym(s): Agrostis californica Trin.
Synonym(s): Agrostis exarata Trin. var. exarata; Agrostis exarata Trin. var. pacifica Vasey
Non-native; Synonym(s): Agrostis alba L., in part, misapplied
Synonym(s): Agrostis diegoensis Vasey
Non-native; Synonym(s): Agrostis alba L. var. alba, in part, misapplied; Agrostis alba L. var. palustris (Huds.) Pers.
Non-native; Synonym(s): Aira caryophyllea L. var. caryophyllea
Non-native
Synonym(s): Alopecurus howellii Vasey
Synonym(s): Hierochloe occidentalis Buckley
Non-native; Synonym(s): Arrhenatherum elatius (L.) J. Presl & C. Presl var. bulbosum (Willd.) Spenn.; Arrhenatherum elatius (L) J. Presl & C. Presl var. elatius
Non-native
Non-native
Non-native; Synonym(s): Avena fatua L. var. fatua; Avena fatua L. var. glabrata Peterm.
Non-native; Synonym(s): Avena fatua L. var. fatua; Avena fatua L. var. glabrata Peterm.
Non-native
Non-native
Non-native; Synonym(s): Bromus trinii Desv.; Bromus trinii Desv. var. trinii
Non-native; Synonym(s): Bromus willdenovii Kunth.; Bromus willdenowii Kunth., orthographic variant
Non-native; Synonym(s): Bromus stamineus E. Desv.
Possibly non-native
Non-native; Synonym(s): Bromus rigidus Roth
Non-native; Synonym(s): Bromus mollis L.
Non-native
Non-native; Synonym(s): Bromus madritensis L.; Bromus madritensis L. subsp. madritensis
Non-native; Synonym(s): Bromus madritensis L. subsp. rubens (L.) Husn.
Synonym(s): Bromus carinatus Hook. & Arn.; Bromus carinatus Hook. & Arn. var. carinatus
Synonym(s): Bromus breviaristatus Buckley; Bromus carinatus Hook. & Arn. var. marginatus (Nees) Barkworth & Anderton; Bromus marginatus Nees
Synonym(s): Bromus carinatus var. maritimus (Piper) Hitchc.; Bromus maritimus (Piper) Hitchc.
Non-native; Synonym(s): Pennisetum clandestinum Hochst. ex Chiov
Non-native; Synonym(s): Pennisetum latifolium Spreng.
Synonym(s): Pennisetum villosum R. Br.
Non-native; Synonym(s): Pennisetum setaceum (Forssk.) Chiov.
Non-native; Synonym(s): Sporobolus niliacus Fig. & De Not. P.M. Peterson
Synonym(s): Danthonia californica Bol. var. americana (Scribn.) Hitchc.; Danthonia californica Bol. var. californica
Non-native; Synonym(s): Scleropoa rigida (L.) Griseb.
Synonym(s): Distichlis spicata (L.) Greene var. divaricata Beetle; Distichlis spicata (L.) Greene var. nana Beetle; Distichlis spicata (L.) Greene var. stolonifera Beetle; Distichlis spicata (L.) Greene var. stricta (Torr.) Scribn.
Non-native; Synonym(s): Echinochloa crusgalli (L.) P. Beauv., orthographic variant
Synonym(s): Elymus macounii Vasey
Synonym(s): Hystrix californica (Bol. ex Thurb.) Kuntze; Leymus californicus (Bol. ex Thurb.) Barkworth
Non-native; Synonym(s): Taeniatherum caput-medusae (L.) Nevski
Synonym(s): Leymus condensatus (J. Presl) Á. Löve
Synonym(s): Elymus glaucus Buckley subsp. jepsonii (Burtt Davy) Gould
Synonym(s): Elymus virescens Piper
Synonym(s): Leymus mollis (Trin.) Pilg. subsp. mollis
Synonym(s): Sitanion jubatum J.G. Sm.
Non-native; Synonym(s): Agropyron elongatum (Host.) Beauv., in part; Elytrigia pontica (Podp.) Holub
Non-native; Synonym(s): Agropyron repens (L) P. Beauv.; Elytrigia repens (L.) Desv. ex Nevski
Synonym(s): Agropyron trachycaulum (Link) Malte ex H.F. Lewis
Synonym(s): Leymus triticoides (Buckley) Pilg.
Synonym(s): Leymus ×vancouverensis (Vasey) Pilg.
Non-native; Synonym(s): Eragrostis megastachya (Koeler) Link
Non-native; Synonym(s): Eragrostis curvula (Schrad.) Nees var. curvula
Non-native; Synonym(s): Festuca elatior L.; Schedonorus arundinaceus (Schreb.) Dumort.
Non-native; Synonym(s): Festuca dertonensis (All.) Asch. & Graebn.; Vulpia bromoides (L.) Gray
Synonym(s): Festuca californica Vasey subsp. californica
Synonym(s): Festuca howellii Hack. ex Beal, nomen rejiciendum
Synonym(s): Festuca idahoensis Elmer subsp. roemeri (Pavlick) S.G. Aiken; Festuca roemeri (Pavlick) E.B. Alexeev; Festuca roemeri (Pavlick) E.B. Alexeev var. klamathensis B.L. Wilson
Synonym(s): Festuca confusa Piper; Festuca eastwoodiae Piper; Festuca grayi (Abrams) Piper; Festuca microstachys Nutt. var. ciliata A. Gray ex Beal; Festuca microstachys Nutt. var. pauciflora Scribn. ex Beal; Festuca microstachys Nutt. var. simulans (Hoover) Hoover; Festuca pacifica Piper; Festuca reflexa Buckley; Festuca tracyi Hitchc; Vulpia microstachys (Nutt.) Munro var. ciliata (A. Gray ex Beal) Lonard & Gould; Vulpia microstachys (Nutt.) Munro var. confusa (Piper) Lonard & Gould; Vulpia microstachys (Nutt.) Munro; Vulpia microstachys (Nutt.) Munro var. microstachys; Vulpia microstachys (Nutt.) Munro var. pauciflora (Scribn. ex Beal) Lonard & Gould
Non-native; Synonym(s): Festuca megalura Nutt.; Vulpia megalura Nutt.; Vulpia myuros (L.) C.C. Gmel.; Vulpia myuros (L.) C.C. Gmel. var. hirsuta Hack.; Vulpia myuros (L.) C.C. Gmel. var. myuros
Synonym(s): Festuca octoflora Walter subsp. hirtella Piper; Vulpia octoflora (Walter) Rydb.; Vulpia octoflora (Walter) Rydb. var. hirtella (Piper) Henrard; Vulpia octoflora (Walter) Rydb. var. octoflora
Non-native; Synonym(s): Lolium multiflorum Lam.; Lolium perenne L.; Lolium perenne L. var. multiflorum (Lam.) Parnell
Non-native; Synonym(s): Festuca elatior L. var. pratensis (Huds.) A. Gray; Schedonorus pratensis (Huds.) P. Beauv.
Non-native; Synonym(s): Lolium temulentum L.
Non-native; Synonym(s): Gastridium ventricosum (Gouan) Schinz & Thell., misapplied
Non-native; Synonym(s): Glyceria occidentalis (Piper) J.C. Nelson
Non-native; Synonym(s): Monerma cylindrica (Willd.) Coss. & Durieu
Non-native
Synonym(s): Hordeum californicum Covas & Stebbins
Non-native; Synonym(s): Hordeum geniculatum All.; Hordeum hystrix Roth
Non-native; Synonym(s): Hordeum glaucum Steud.
Non-native; Synonym(s): Hordeum leporinum Link
Non-native
Synonym(s): Melica imperfecta Trin. var. refracta Thurb. in Wats.
Synonym(s): Dichanthelium acuminatum (Sw.) Gould & C.A. Clark subsp. fasciculatum (Torr.) Freckmann & Lelong; Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. fasciculatum (Torr.) Freckmann; Panicum pacificum Hitchc. & Chase
Possibly non-native
Non-native; Synonym(s): Phalaris tuberosa L. var. stenoptera (Hack.) Hitchc.
Non-native
Non-native; Synonym(s): Phalaris paradoxa L. var. paradoxa; Phalaris paradoxa L. var. praemorsa (Lam.) Coss. & Durieu
Non-native
Non-native
Synonym(s): Poa scabrella (Thurb.) Vasey
Non-native
Non-native; Synonym(s): Agrostis semiverticillata (Forssk.) C. Chr.
Synonym(s): Puccinellia airoides (Nutt.) S. Watson & J.M. Coult.
Non-native; Synonym(s): Danthonia pilosa R. Br., misapplied
Non-native
Non-native
Synonym(s): Setaria gracilis Kunth; Setaria geniculata (Hornem. ex Willd.) P. Beauv., misapplied
Non-native; Synonym(s): Setaria glauca (L.) P. Beauv.
Non-native; Synonym(s): Sorghum sudanense (Piper) Stapf; Sorghum vulgare Pers.
Non-native; Synonym(s): Sporobolus poiretii (Roem. & Schult.) Hitchc., misapplied
Synonym(s): Nassella cernua (Stebbins & Love) Barkworth
Synonym(s): Nassella lepida (Hitchc.) Barkworth
Non-native; Synonym(s): Oryzopsis miliacea (L.) Benth. & Hook. f. ex Asch. & Schweinf.; Piptatherum miliaceum (L.) Coss. subsp. miliaceum
Synonym(s): Nassella pulchra Hitchc.
Non-native; Synonym(s): Nassella tenuissima (Trin.) Barkworth
Synonym(s): Glyceria pauciflora Presl
Synonym(s): Gilia achillaefolia Benth., orthographic variant
Synonym(s): Linanthus ambiguus (Rattan) Greene
Synonym(s): Linanthus androsaceus (Benth.) Greene
Synonym(s): Linanthus bicolor (Nutt.) Greene
Synonym(s): Linanthus ciliatus (Benth.) Greene
Synonym(s): Linanthus grandiflorus (Benth.) Greene
Synonym(s): Linanthus androsaceus (Benth.) Greene subsp. croceus (Milliken) Mason; Linanthus androsaceus (Benth.) Greene subsp. luteus (Benth.) Mason; Linanthus longituba Heller; Linanthus rosaceus (Hook.f.) Greene; Linanthus parviflorus (Benth.) Greene
Synonym(s): Linanthus pygmaeus (Brand) J.T. Howell; Linanthus pygmaeus (Brand) J.T. Howell subsp. continentalis P.H. Raven
Synonym(s): Phlox gracilis (Hook.) Greene
Synonym(s): Polygala californica Nutt.
Synonym(s): Chorizanthe cuspidata S. Watson var. marginata Goodman
Synonym(s): Chorizanthe pungens Benth. var. hartwegii of pre-1989 authors, including Thomas (1961)
Possibly non-native
Synonym(s): Eriogonum vimineum Douglas ex Benth. subsp. gracile (Benth.) S. Stokes
Non-native; Synonym(s): Polygonum convolvulus L.
Non-native; Synonym(s): Polygonum cuspidatum Siebold & Zucc.
Non-native; Synonym(s): Polygonum sachalinense F. Schmidt
Synonym(s): Polygonum amphibium L. var. emersum Michx.; Polygonum coccineum Muhl. ex Willd.
Non-native; Synonym(s): Polygonum capitatum D. Don
Synonym(s): Polygonum hydropiperoides Michx.
Synonym(s): Polygonum lapathifolium L.; Polygonum lapathifolium L. var. salicifolium Sibth.
Non-native; Synonym(s): Polygonum persicaria L.
Synonym(s): Polygonum punctatum Elliott
Non-native; Synonym(s): Polygonum polystachyum Meisn.
Non-native; Synonym(s): Polygonum arenastrum Boreau
Synonym(s): Rumex salicifolius Weinm. var. denticulatus Torr.
Synonym(s): Rumex salicifolius Weinm. var. crassus (Rech.f.) J.T. Howell
Non-native
Synonym(s): Rumex maritimus L., misapplied
Synonym(s): Rumex fenestratus Greene
Non-native
Synonym(s): Rumex salicifolius Weinm. var. salicifolius
Synonym(s): Rumex salicifolius Weinm. var. transitorius (Rech. f.) J.C. Hickman
Synonym(s): Polypodium californicum Kaulf. var. kaulfussii D.C. Eat.
Synonym(s): Potamogeton foliosus Raf. var. macellus Fern.