Plant: annual to perennial herb;sap milky; stems many, 1-3 dm, unbranched Leaves: all basal INFLORESCENCE: primary inflorescence a head, each resembling a flower; heads ligulate, solitary; involucre 7-9 mm; principal phyllaries subequal, ± basal bractlets; receptacle naked Flowers: many; ligules yellow, readily withering Fruit: outer achenes smooth, pappus a crown of short scales; inner achenes roughened, pappus of short and long bristles with expanded bases Misc: Weed in disturbed ground; < 1000 m