Distribution: Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout most of North America.
Habitat: Drier areas at low to mid-elevations.
Origin: Introduced from Europe
Conservation Status: Not of concern
Biennial from a fleshy taproot, or occasionally annual, the stem usually branched, 3-10 dm. tall, the juice milky.
Leaves elongate, uniformly tapering from base to apex, entire, not recurved, mostly glabrous but with some loose, wooly hairs in the axils.
Heads solitary at the ends of branches, the peduncles enlarged and hollow under the heads; involucral bracts in a single series, equal, about 13, 2.5-4 cm. long in flower, distinctly surpassing the pale, lemon-yellow, ligulate corollas, elongating to 4-7 cm. in fruit; pappus of a single series of whitish, uneven-length, plumose bristles, the plume branches interwebbed.
Achenes slender, 25-36 mm. long, gradually narrowed to the stout beak.