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General:
Annual or occasionally biennial herb from a fibrous root; stems erect, usually solitary, branched above, spreading, long-hairy, 0.3-1.5 m tall.
Leaves:
Basal leaves stiff-hairy, coarsely toothed, elliptic to broadly egg-shaped, 1-10 cm long, 0.5-7 cm wide, or sometimes larger; stem leaves numerous, broadly lanceolate or broader.
Flowers:
Heads with ray and disk flowers, several to numerous in a large, leafy inflorescence, the disks 6-10 mm wide; involucres 3-5 mm tall; involucral bracts finely glandular, sparsely long-hairy, tips tapering to a slender tip; ray flowers about 80-125, white, 0.5-1 mm wide, up to 10 mm long; disk flowers 2-2.8 mm long.
Fruits:
Achenes hairy, 2-nerved; pappus double, the outer of short bristly scales, the inner of 10-15 short, fragile bristles, these lacking from the ray flowers.
Source: The Illustrated Flora of British Columbia
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