Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Oregon, east to western Idaho.
Habitat: Dry, open, typically rocky areas, often with sagebrush.
Growth Duration: Perennial
Conservation Status: Not of concern
Taprooted perennial with short-branched, woody base; stems to 15 cm. high; plants more or less spreading-hairy and glandular throughout.
Basal leaves linear-oblanceolate to spatulate, up to 8 cm. long and 12 mm. wide, the cauline leaves reduced.
Heads solitary, hemispheric, the disk 9-20 mm. wide; involucre 5-9 mm. high; rays 15-45, pale pink or purple to deep violet, 4-15 mm. long and 1.3-3.6 mm. wide; pappus of 20-30 capillary bristles.
Achenes densely covered with long, silky hairs.
PNW Herbaria: Specimen records of Erigeron poliospermus in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Erigeron poliospermus checklist entry.
OregonFlora: Erigeron poliospermus information.
E-Flora BC: Erigeron poliospermus atlas page.
CalPhotos: Erigeron poliospermus photos.
USDA Plants: Erigeron poliospermus information.