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General:
Perennial herb from a woody stem-base; stems erect, branched above, hairy, 0.3-1.7 m tall.
Leaves:
Basal leaves oblanceolate, stalked, palmately 3- to 5-pinnately cut, ultimate segments elliptic and toothed, 5-10 cm long; stem leaves lanceolate or egg-shaped, hairy, more or less stalked.
Flowers:
Heads discoid, in dense, terminal round-topped clusters; involucres cylindric to bell-shaped, 6-8 mm tall; involucral bracts graduated, outer ones much shorter than the inner, purple-tipped; disk flowers 5-6, reddish-mauve or whitish.
Fruits:
Achenes blackish, 5-angled, glandular-dotted; pappus of numerous, hairlike bristles.
Source: The Illustrated Flora of British Columbia
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