Page authors: Don Knoke, David Giblin
Nothocalais alpestris
alpine lake agoseris

Distribution: Occurring on both sides of the Cascades crest in Washington, mostly from Mt. Rainier south; Washington to California.

Habitat: Open slopes and meadows from middle to high elevations in the mountains.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles, wasps


Glabrous perennial from a stout root, 3-35 cm. tall, sometimes with a single small leaf on the naked peduncle, the juice milky.


Leaves all basal, 5-15 cm. long, up to 3 cm. wide, some or all of them coarsely few-toothed to laciniate-pinnatifid, occasionally all entire.


Heads solitary; involucre 12-20 mm. high, its bracts sub-equal, thin, pointed, the outer broader than the inner, lanceolate, usually dotted with dark purple; corollas all ligulate, yellow; pappus of 30-50 barbellate, unequal, capillary bristles.


Achenes 5-8 mm long, with fine hairs on the terminal portion.

Accepted Name:
Nothocalais alpestris (A. Gray) K.L. Chambers
Publication: Contr. Dudley Herb. 5: 66. 1957.

Synonyms & Misapplications:
Agoseris alpestris (A. Gray) Greene
Agoseris barbellulata Greene
Microseris alpestris (A. Gray) Q. Jones ex Cronquist [HC]
Additional Resources:

PNW Herbaria: Specimen records of Nothocalais alpestris in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Nothocalais alpestris checklist entry.

OregonFlora: Nothocalais alpestris information.

E-Flora BC: Nothocalais alpestris atlas page.

CalPhotos: Nothocalais alpestris photos.

USDA Plants: Nothocalais alpestris information.

19 photographs:
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