General:
Perennial from a long, heavy taproot; stems leafless, 1-several, exuding milky juice when broken, 10-70 cm tall.

Leaves:
All basal, extremely variable, linear to broadly lanceolate, 5-35 cm long, 1-30 mm wide, entire or toothed to laciniate-pinnatifid or few lobed, glaucous or glabrous or sparsely hairy on the margins and midribs below.

Flowers:
Heads with strap-shaped flowers, solitary; involucres narrowly bell-shaped, 1-3 cm tall; involucral bracts graduated or subequal, lanceolate, attenuate or sometimes obtuse, frequently purple-margined, glabrous, the outer series shorter; receptacles naked; ray flowers yellow, often drying pinkish.

Fruits:
Achenes smooth, long, the body tapering gradually to a stout, grooved beak which is about half as long as the body or, as in ours, more commonly beakless; pappus of numerous hairlike bristles, 10-12 mm long, white.

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:
Agoseris glauca subsp. scorzonerifolia (Schrad.) Piper
Agoseris glauca var. asper (Rydb.) Cronquist
Agoseris glauca var. pumila (Nutt.) Garrett
Agoseris scorzonerifolia (Schrad.) Greene
Troximon glaucum var. dasycephalum Torr. & A. Gray