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Perennial herb from fibrous roots, often creeping at the base and frequently stoloniferous as well; stems mostly unbranched, angled, inconspicuously appressed-hairy, 15-60 cm long.
Lower leaves oblanceolate, narrowed at base but scarcely stalked; middle and upper leaves more oblong or elliptic to lance-elliptic; 2.5-8 cm long, 7-20 mm wide, nearly glabrous or with short appressed hairs, entire, alternate.
Inflorescence of lax, coiled, narrow, elongating, bractless, terminal clusters, not much longer than leafy part of stem; fruiting stalks spreading, 1-2 times as long as calyces; petals sky-blue, rarely white, fused at base into a tube that spreads flat (4-10 mm wide) at top to 5 lobes, with 5 bulges at the throat; fruiting calyces 3-5 mm long, closely appressed-hairy.
Nutlets 4, clustered together, narrowly egg-shaped, 2-2.5 mm long, blackish, smooth, shining.
Source: The Illustrated Flora of British Columbia