Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, Utah, and Arizona.
Habitat: Dry, open areas at low to mid-elevations.
Flowers: April-July
Origin: Native
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bees, flies, beetles
Scapose, slender annual, usually glabrous, often with several scapes from the base, 3-40 cm. tall, with milky juice.
Leaves oblanceolate, toothed or pinnatifid to entire, up to 15 cm. long and 1.5 cm. wide, mostly basal, but a few on the base of the stem.
Heads solitary, small; involucre 5-13 mm. high in flower, elongating in fruit, with a few soft hairs; corollas all ligulate, yellow.
Achene body 2-5 mm. long, prominently ribbed or winged, tapering to a slender beak 2-3 times as long.
Publication: Pittonia. 2: 178. 1891.
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var. heterophylla
Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, Utah, and Arizona.
PNW Herbaria: Specimen records of Agoseris heterophylla in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Agoseris heterophylla checklist entry.
OregonFlora: Agoseris heterophylla information.
E-Flora BC: Agoseris heterophylla atlas page.
CalPhotos: Agoseris heterophylla photos.
USDA Plants: Agoseris heterophylla information.
