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Perennial herb from a short, stout rhizome; stems erect, usually solitary, hairy, the hairs bristly or starlike, or glabrous, exuding milky juice when broken, 20-80 cm tall.
Basal leaves well-developed, persistent, narrowly to broadly elliptic, stalked, toothed, 1.5-15 cm long, 0.3-2.0 cm wide, with non-glandular hairs, sometimes glabrous above, sometimes with starlike hairs below; stem leaves similar, 2-10, reduced upwards.
Heads with strap-shaped flowers, few to numerous, the stalks of the heads with non-glandular or glandular and starlike hairs; involucres 8-11 mm tall; involucral bracts narrowly lanceolate, graduated, obtuse to abruptly sharp-pointed with non-glandular or glandular and starlike hairs; ray flowers yellow.
Achenes 2.5-3.5 mm long; pappus dull white or tawny.
Source: The Illustrated Flora of British Columbia