Page authors: David Giblin, Don Knoke
Agoseris monticola
mountain agoseris, Sierra Nevada agoseris

Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.

Habitat: Mesic meadows in the subalpine and alpine, often in soils of volcanic origin.

Flowers: July-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles


Scapose perennial, 10-25 cm. tall, with milky juice; pubescence chiefly around the involucre, consisting partly of glandular, translucent hairs.


Leaves glabrous or evenly short hairy, linear-lanceolate, 5-20 cm. long, acute or acuminate, occasionally laciniate.


Heads solitary; involucre 1-2 cm. high, the bracts in three length classes, the outer considerably shorter, acute; corollas all ligulate, yellow; pappus 10-11 mm. long.


Achenes 5-8 mm. long, the body tapering to a stout, striate beak up to half as long as the body.

Accepted Name:
Agoseris monticola Greene
Publication: Pittonia. 4: 37. 1899.

Synonyms & Misapplications:
Agoseris glauca (Pursh) Raf. var. monticola (Greene) Q. Jones [HC]
Additional Resources:

PNW Herbaria: Specimen records of Agoseris monticola in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Agoseris monticola checklist entry.

OregonFlora: Agoseris monticola information.

E-Flora BC: Agoseris monticola atlas page.

CalPhotos: Agoseris monticola photos.

USDA Plants: Agoseris monticola information.

18 photographs:
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