Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the northern Great Plains, also in northern and eastern Canada.
Habitat: Sandy riverbanks at low elevations to rocky outcrops at mid- to high elevation in the mountains
Flowers: May - August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, butterflies, flies, apomixis?
Perennial from a tap-root, 3-25 cm. tall, the herbage densely glandular.
Basal leaves trifid to ternately dissected; cauline leaves few, linear and entire.
Heads solitary on long, nearly leafless stems, glandular and hairy; pistillate flowers 20-60, with usually white but occasionally pink or blue rays up to 12 mm. long and 2 mm. wide, or wanting; disk flowers yellow; pappus of 12-20 capillary bristles.
PNW Herbaria: Specimen records of Erigeron compositus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Erigeron compositus checklist entry
OregonFlora: Erigeron compositus information
E-Flora BC: Erigeron compositus atlas page
CalPhotos: Erigeron compositus photos