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Perennial herb from a horizontal underground stem; stems erect, solitary or occasionally a few clustered together, sparsely hairy, 10-30 cm tall.
Basal leaves smaller than the stem leaves and often deciduous by flowering time, often produced on separate short shoots; stem leaves opposite, 2-4 (sometimes 5) pairs, egg-shaped to lanceolate, 2-8 cm long, 1-2.5 cm wide, often becoming narrower and smaller above, thinly hairy and usually sparsely to densely glandular, stalked below, unstalked above, usually coarsely toothed.
Heads with ray and disk flowers, 3-9, the bases sparsely to moderately hairy with long white or yellow hairs, often glandular; involucres 7-14 mm tall; involucral bracts lanceolate to oblanceolate, sparsely to densely hairy, often glandular, the tips fringed; ray flowers yellow, 8-12, with conspicuous teeth; disk flowers yellow.
Achenes 4-7 mm long, usually glabrous below and sparsely hairy above or glabrous throughout; pappus white, finely-barbed.
Source: The Illustrated Flora of British Columbia