Page authors: Don Knoke, David Giblin
Chaenactis douglasii
hoary chaenactis, hoary false-yarrow
WTU specimens
Other herbaria

Distribution: East of the Cascade crest in Washington; British Columbia south to California, east to Rocky Mountains.

Habitat: Shrub-steppe and foothills to higher elevations in forest openings.

Flowers: May-September

Origin: Native

Conservation Status: Not of concern


Biennial or perennial tap-rooted herb, 1-6 dm. tall, loosely white-woolly throughout.


Leaves 2-12 cm. long, 1-3 times pinnatifid, the somewhat thick segments curled, the upper leaves less dissected than the tufted lower ones.


Heads several in a flat-topped inflorescence, rayless; involucre 7-16 mm. high, glandular, the bracts narrow and sub-equal; flowers white to pink; pappus of 10-16 hyaline scales; receptacle naked.

Accepted Name:
Chaenactis douglasii (Hook.) Hook. & Arn.
Publication: Bot. Beechey Voy. 354. 1839.

Synonyms & Misapplications:
(none provided)
var. douglasii – hoary chaenactis, hoary false-yarrow    Uncommon along the east slope of the Cascades in Washington
Additional Resources:

PNW Herbaria: Specimen records of Chaenactis douglasii in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Chaenactis douglasii checklist entry.

E-Flora BC: Chaenactis douglasii atlas page.

CalPhotos: Chaenactis douglasii photos.

USDA Plants: Chaenactis douglasii information.

60 photographs:
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