Page authors: Don Knoke, David Giblin
Agoseris ×elata
tall agoseris, tall goat-chicory

Distribution: Occurring on both sides of the Cascades crest in Washington; south-central British Columbia to California.

Habitat: Meadows and open woods, from the valleys to middle elevations in the mountains.

Flowers: June-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Sensitive in Washington (WANHP)

Pollination: Bees, flies, beetles


Scapose, mostly glabrous, stout perennial, 2-7 dm. tall, with milky juice.


Leaves all basal, 10-30 cm. long and 1-7 cm. wide, entire or pinnatifid.


Head solitary on the scape; involucre 2-3 cm. high, its bracts imbricate, the outer broader and blunter than the inner; corollas all ligulate, yellow.


Achene body 8-10 mm. long, tapering to a slender beak of equal length.

Accepted Name:
Agoseris ×elata (Nutt.) Greene
Publication: Pittonia. 2: 177. 1891.

Synonyms & Misapplications:
Agoseris laciniata (Nutt.) Greene
Additional Resources:

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

WA Flora Checklist: Agoseris ×elata checklist entry.

OregonFlora: Agoseris ×elata information.

E-Flora BC: Agoseris ×elata atlas page.

CalPhotos: Agoseris ×elata photos.

USDA Plants: Agoseris ×elata information.

25 photographs:
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