E-Flora BC: Electronic Atlas of the Flora of British Columbia

Agoseris glauca (Pursh) Raf. var. glauca
prairie agoseris
Asteraceae (Aster family)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #24967)

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Distribution of Agoseris glauca var. glauca
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Species Information

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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

Habitat / Range

Mesic to dry grasslands, shrublands, open forests, meadows and scree slopes in the steppe to alpine zones; frequent throughout BC except rare in coastal BC; N to SE AK, E to AB and S to ID, MT and WA.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Agoseris turbinata Rydb.
Troximon glaucum Pursh

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References