Page authors: Don Knoke, David Giblin
Crepis occidentalis
western hawksbeard

Distribution: Occurring chiefly east of the Cascades crest in Washington; central British Columbia to California, east to the Rocky Mountains and northern Great Plains of Canada and the U.S.

Habitat: Dry, open places, mostly in the foothills and plains, but also found in the subalpine.

Flowers: May-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, butterflies, flies, beetles, wasps, apomixis?


Stout perennial from a taproot and short, woody base, stems 1-3, 0.5- 4 dm. tall, the herbage densely grey-woolly, at least when young, with milky juice.


Lower leaves 1.5-3 dm. long, toothed with backward-pointing segments, to deeply pinnatifid with toothed lobes; cauline leaves few and greatly reduced.


Heads 2-25, 10-40 flowered; involucre 11-19 mm. high, often with some black-tipped glandular bristles, the inner bracts 8-13, more than twice as long as the outer; corollas all ligulate, yellow; pappus of numerous capillary bristles.


Achenes spindle-shaped, brown.

Accepted Name:
Crepis occidentalis Nutt.
Publication: J. Acad. Nat. Sci. Philadelphia. 7: 29. 1834.

Synonyms & Misapplications:
Crepis occidentalis Nutt. ssp. conjuncta Babc. & Stebbins [FNA19, HC]
Crepis occidentalis Nutt. ssp. costata (A. Gray) Babc. & Stebbins [FNA19, HC]
Crepis occidentalis Nutt. ssp. occidentalis [FNA19, HC]
Crepis occidentalis Nutt. ssp. pumila (Rydb.) Babc. & Stebbins [FNA19, HC]
Crepis occidentalis Nutt. var. costata A. Gray
Additional Resources:

PNW Herbaria: Specimen records of Crepis occidentalis in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Crepis occidentalis checklist entry

OregonFlora: Crepis occidentalis information

E-Flora BC: Crepis occidentalis atlas page

CalPhotos: Crepis occidentalis photos

39 photographs:
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