Distribution: In the mountains from British Columbia to California, east to Alberta and Colorado
Habitat: Open woods and meadows, moderate to mid-elevations in the mountains
Flowers: July - August
Conservation Status: Not of concern
Heads generally several, narrow, with few disk flowers; involucre 10-14 mm. high with pointed bracts, covered with stalked glands; rays about 8 or about 13, 1.5-2 cm. long; pappus straw-colored, sub-plumose.
Cauline leaves 2-4 pairs, strongly reduced upward, with lanceolate or lance-ovate blades 5-20 cm. long and 1.5-6 cm. wide.
Heads several, nodding in bud, rayless; involucres 10-14 mm. high, their bracts sharp pointed; pappus tawny, sub-plumose.
Achenes glabrous to glandular or hairy.
The other rayless species in our area, Arnica discoidea, has wider leaves, and the heads are upright in bud.