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Perennial herb from a woody rhizome; stems ascending to erect, glabrous, branched, 20-70 cm tall.
Basal leaves numerous, spoon-shaped to linear or linear-lanceolate, simple or with 1 or 2 pairs of small lateral lobes at the base, usually stiff-hairy, 10-20 cm long, up to 2 cm wide; upper leaves few, reduced, mostly entire, usually glabrous.
Heads with ray and disk flowers, solitary to several on long stalks; involucres 10-14 mm tall; involucral bracts markedly different, the inner 8-12 mm long, egg-shaped, brown with lighter margins, the outer reduced, lanceolate to oblong egg-shaped, obtuse, 4-8 mm long; ray flowers yellow, about 8, 1.5-3 cm long; disk flowers yellow; receptacular bracts flat and papery below.
Achenes black, 2.5-3 mm long, margins with incurved wings; pappus of 2 small, fringed teeth.
Source: The Illustrated Flora of British Columbia