OBI - Robert F. Hoover Herbarium, Cal Poly State University (OBI)
OBI147777
ea429dc6-f0e5-4fd2-9f22-88ce685c71a1
Crepis occidentalis
Asteraceae
subspecies costata if infraspecific names are to be applied
Tom Schweich
1894
2018-05-28
United States, Colorado, Jefferson, Colorado School of Mines Survey Field; base of the Rocky Mountain Front Range, northeast-facing slope, above an unnamed stream in the south end of the Survey Field, 2.51 km south of the GNIS location of Golden
39.733 -105.2212 WGS84
1830 meters
1830 m
in deep grasses and forbs at the base of tall shrubs; northeast-facing slope
phyllaries grayish, glandular; perennial herb to 25 cm, taprooted, stem green, tomentose, glandular, no bristles; leaves basal and cauline, alternate, petiole 20 mm + blade 56 mm x 17 mm wide, reduced distally, pinnately lobed nearly to mid-rib, segments deltoid, tomentose, glandular; inflorescence heads #3 per stem, showy, >leaves; peduncles 23 mm; involucre 12 mm x 12 mm wide, cylindric, tomentose; phyllaries 2 graduated series, 3.5 mm &tmes; 2 mm wide, deltoid, 12.5 mm x 3 mm wide, lanceolate +- flat, tomentose, gland-tipped black bristles evenly distributed; receptacle epaleate; ray flowers (ligules) many, tube 6 mm + blade 12.5 mm x 2.4 mm wide, yellow; pappus 9 mm well-developed bristles +- equal, smooth; fruit 2 mm x 1.3 mm wide, brown, glabrous
pressed herbarium specimen
collected by permit: Colorado School of Mines, 2018, issued: Apr 1, 2018; to: Tom Schweich
ea429dc6-f0e5-4fd2-9f22-88ce685c71a1
For additional information about this specimen, please contact: Jenn Yost, Director and Associate Professor (jyost@calpoly.edu)
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Angiosperm Phenological Traits: Quality of a plant or portion of a plant that provides phenologically relevant information
Reproductive: At least one reproductive structure of any kind is present (flowers, flower buds, fruits)
Open Flower present: At least one open flower is present
Fruit present: At least one immature or mature fruit is present