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Perennial herb from a slender rhizome; stems few to several, ascending to erect, sparsely to copiously short-hairy, often purple, branched above, 10-70 cm tall.
Basal leaves soon deciduous; stem leaves largest below, broadly oblanceolate or spoon-shaped, tapering to the unstalked or stalked base, 4-13 cm long, 1-4 cm wide, the middle and uppermost more gradually reduced and broader in shape, sparsely to copiously short-hairy on the lower surfaces, mostly sharply saw-toothed or toothed except at the base.
Heads with ray and disk flowers, few to more often numerous in a mostly short and flat-topped inflorescence; involucres 6-9 mm tall; involucral bracts graduated in several series, the outer oblong, the inner linear, usually abruptly sharp-pointed, stiff-hairy on the back with a strong midrib, evidently to obscurely green-tipped, often strongly purple-margined; ray flowers 10-15, white to pale violet, 8-12 mm long; disk flowers yellow, 7-8 mm long, the tube longer than the slender limb.
Achenes smooth, sparsely stiff-hairy; pappus tawny.
Source: The Illustrated Flora of British Columbia