Plant: Taproot perennial forb <20 cm; herbage with milky sap; stems naked, hollow Leaves: leaves in basal rosette, toothed or lobed, lobes acute Inflorescence: primary inflorescence a head, each resembling a flower; heads 2-3.3 cm diam, ligulate, solitary, scapose; outer phyllaries reflexed, 5-8 mm; tips of inner phyllaries acute to minutely truncate; receptacle convex, naked Flowers: many; ligules yellow, readily withering Fruit: achenes, grayish or olive-brown, fusiform; ribs rough; beak slender, >> body; body tubercled near tip; pappus of many, white, slender bristles, not plumose Misc: Weed, especially of lawns, meadows; 0-3300 m.; Most of year