General:
Perennial herb from a rhizome; stems erect, solitary, few-branched above; nearly glabrous to sparingly long-hairy below, becoming densely long-hairy above, 15-35 cm tall.

Leaves:
Basal leaves thick, oblanceolate to elliptic, stalked, 2-10 cm long including the stalk, 0.4-1.5 cm wide, sometimes toothed, glabrous to moderately or densely woolly-hairy; stem leaves similar, becoming linear, much reduced upwards, becoming unstalked.

Flowers:
Heads with ray and disk flowers, few in a clustered inflorescence, on stalks moderately to densely woolly-hairy with yellowish multicellular hairs; involucres 6-12 mm tall; involucral bracts lance-oblong to linear, purplish throughout, moderately to densely long-hairy, margins translucent; bracteoles few, inconspicuous; ray flowers yellow, mostly 5-12 mm long, often inconspicuous or sometimes lacking; disk flowers yellow.

Fruits:
Achenes oblong, nerved, glabrous; pappus of white hairlike bristles. vol1_6

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia

Synonyms and Alternate Names:
Senecio alaskanus Hultén
Senecio yukonensis A.E. Porsild