Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Nevada, east to the Rocky Mountains and northern Great Plains.
Habitat: Dry slopes, sagebrush, and forest openings from foothills to middle elevations in the mountains.
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, butterflies, flies, beetles, apomixis?
Perennial with 1 or 2 stems from a tap-root, 1.5-7 dm. tall, with milky juice, covered with fine, short white wool at least when young.
Basal and lower cauline leaves 1-3.5 dm. long, deeply pinnatifid, with narrow main axis and linear, entire segments; upper leaves becoming linear and entire.
Heads 3-30(40) with 10-40 flowers; corollas 10-18 mm long; involucre 8-15 mm high, typically with gray tomentum and often with black setae that lack glands; involucre rarely glabrous; outer involucral bracts less than half as long as the mostly 8-10 inner ones.
Achenes greenish, tapered to the tip.