Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to Montana and Arizona.
Habitat: Dry, open areas at low to mid-elevations.
Conservation Status: Not of concern
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.