Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Common in forest openings and meadows, and open, rocky areas from middle to high elevations in the mountains.
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Apomixis, bumblebees, butterflies
Perennial, 1-6 dm. tall, glandular at least above.
Broad, long-petiolate basal leaves sometimes on short separate stalks; cauline leaves 2-4 pairs, lance-elliptic or broader, rarely cordate, more or less toothed, 2-14 cm. long and 1-8 cm. wide, the middle ones larger than the lower.
Heads 1-several; involucre 7-18 mm. high, more or less glandular; pappus white, barbellate.
Achenes glabrous, at least toward the base.
The similar Arnica cordifolia has larger heads, frequently solitary; its leaves and achenes are pubescent.