Page authors: Don Knoke, David Giblin
Anemone occidentalis
mountain pasqueflower, western pasqueflower

Distribution: Occurring in the Olympic and Cascade mountains in Washington; British Columbia to California, east to Alberta, Montana, Idaho, and the Wallowa Mountains of Oregon.

Habitat: Open slopes and meadows from middle elevations to the alpine.

Flowers: May-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Grayish, hairy perennial from a stout, branched, woody base, the stems 2-5 dm. tall.


Basal leaves long-petiolate, the blades large, ternate and 2-3 times pinnately compound, the ultimate segments linear, 0.5-2 mm. broad; the flowering stem naked except for a whorl of 3 leaves above the midpoint, these similar to the basal leaves but sessile.


Flowers single; sepals 5-8, oblong, broadly rounded, white or purplish-tinged, 2-3 cm. long; petals none; stamens and pistils numerous.


Achenes with long, soft hairs, 4 mm. long; styles sinuous, 2-3.5 cm. long, silky-plumose.

Accepted Name:
Anemone occidentalis S. Watson
Publication: Proc. Amer. Acad. Arts. 11: 121. 1876.

Synonyms & Misapplications:
Anemone occidentalis S. Watson var. subpilosa Hardin
Pulsatilla occidentalis (S. Watson) Freyn [KZ99]
Additional Resources:

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

WA Flora Checklist: Anemone occidentalis checklist entry.

OregonFlora: Anemone occidentalis information.

E-Flora BC: Anemone occidentalis atlas page.

CalPhotos: Anemone occidentalis photos.

USDA Plants: Anemone occidentalis information.

108 photographs:
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