Distribution: Common introduction throughout the United States and Canada
Habitat: Weed of roadsides, dry or moist disturbed ground
Flowers: July - September
Conservation Status: Not of concern
Annual or winter annual, usually nearly glabrous, 2-10 dm. tall, the stem erect, unbranched below.
Leaves numerous, narrow, the lower oblanceolate, petiolate, up to 10 cm. long and 1 cm. wide, often deciduous, the other leaves linear and sessile, somewhat hairy.
Heads numerous in an open inflorescence, small; involucre 3-4 mm. high, imbricate; disk flowers yellow, ray flowers white and very short, barely exceeding the pappus.
Achene flattened, about 2 mm. long with white, bristly pappus.