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Perennial herb from a taproot and thickened stem-base; stems erect, simple or few-branched above, generally purplish and curved at the base, densely spreading-hairy, 10-50 cm tall.
Basal leaves triple-nerved, linear-lanceolate, entire, abruptly sharp-pointed, tapering gradually to the stalk, 2-25 cm long (including the stalk), 3-10 mm wide, hairy like the stems; stem leaves several to many, gradually reduced upwards, linear to linear-lanceolate.
Heads with ray and disk flowers, solitary to many, the disks 7-13 mm wide; involucres 5-7 mm tall; involucral bracts hoary with stiff, appressed hairs, sticky or obscurely glandular, somewhat graduated, not much thickened on the back; ray flowers 35-65, deep blue, occasionally pink, 7-13 mm long, 1.2-2 mm wide; disk flowers 3-5.3 mm long.
Achenes 2-nerved, hairy; pappus double, the inner of 20-30 firm bristles, the outer of bristles or scales.
Source: The Illustrated Flora of British Columbia