Page author: David Giblin
Agoseris aurantiaca
orange agoseris
WTU specimens
Other herbaria
WTU images

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and Quebec.

Habitat: Meadows and forest openings at from middle elevations to the alpine.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern

Description:
General:

Scapose, usually glabrous perennial, 1-6 dm. tall, with milky juice.

Leaves:

Leaves all basal, 5-35 cm. long and 1-30 mm. wide, rounded to pointed, entire, or with a few divergent teeth or lobes.

Flowers:

Head solitary on the scape; involucral bracts sub-equal, narrow and pointed; corollas all ligulate, burnt orange.

Fruits:

Achene body 5-9 mm. long, 10-nerved, abruptly narrowed to a slender beak, which is half as long to longer than the body.

Accepted Name:
Agoseris aurantiaca (Hook.) Greene
Publication: Pittonia. 2: 177. 1891.

Synonyms & Misapplications:
(none provided)
Infraspecies:
var. aurantiaca – orange agoseris, slender agoseris    Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and Quebec.
var. carnea – pink agoseris    Occurring east of the Cascades crest in Washington; north-central British Columbia to Washington, east to Alberta, Idaho, Montana, and Wyoming.
Additional Resources:

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

WA Flora Checklist: Agoseris aurantiaca checklist entry.

E-Flora BC: Agoseris aurantiaca atlas page.

CalPhotos: Agoseris aurantiaca photos.

USDA Plants: Agoseris aurantiaca information.

63 photographs:
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