Distribution: Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California, east across most of North America to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed open places.
Origin: Introduced from Eurasia
Conservation Status: Not of concern
Sweet-scented, glabrous, tap-rooted annual 0.3-3 m. tall.
Leaves 2-10 cm. long, twice or thrice pinnatifid, the ultimate segments linear or lanceolate.
Inflorescence broad and open, the discoid heads loose, often nodding, borne on short peduncles; involucre glabrous, imbricate, 1-2 mm. high; flowers all fertile, the outer pistillate; pappus none,