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Perennial herb from a compact, multibranched stem-base; stems sparsely to densely stiff-hairy with long, white, partitioned, spreading hairs and usually sparsely to densely glandular-hairy as well, often densely woolly-hairy just below the heads, these hairs sometimes with purplish crosswalls, 2-7 cm tall.
Basal leaves 0.3-1.6 cm long, mostly three-lobed, rarely two-lobed or entire, the basal segments 0.5-1 mm wide, the sides parallel, the lobes 2-6 mm long, oblong to egg-shaped, obtuse to abruptly sharp-pointed, coarsely fringed with small hairs, sparsely to densely stiff-hairy above and below and sometimes glandular as well, previous year's leaves persistent; stem leaves scalelike, single or often lacking.
Heads with ray and disk flowers, solitary; involucres 5-7 mm tall; involucral bracts densely stiff-hairy with long, white, partitioned hairs, these often with inconspicuous, purplish crosswalls, often sparsely to densely glandular-hairy as well, purplish or sometimes purple-tipped, narrowly lanceolate, tapering to a slender tip; ray flowers 15-30, white or blue to purplish-blue, 6-10 mm long, 0.5-1.5 mm wide; disk flowers 3.5-4.5 mm long.
Achenes nerveless, sparsely to densely hairy; pappus of 15-20 bristles.
Collections of this species have previously been identified as Erigeron compositus var. discoideus or E. trifidus.
Source: The Illustrated Flora of British Columbia