Sp. Pl. 1: 224. 1753.
Plants annual, not cespitose, 3–10 dm; roots fibrous. Stems erect, pilose-strigose. Leaves: petiole 0.5-2 cm; blade green, oblong to ovate, 2–10 × 0.5–5 cm, apex acute, villous. Inflorescences: heads white, yellow, red, or purple, globose, 20–28 mm diam.; bractlets crested along keel. Flowers: tube densely lanate; perianth lobes white to pink, lance-subulate, 4.4–5.2 mm, chartaceous, apex acuminate. Utricles oblong, 2 mm, apex acute. Seeds 1.5 mm.
Phenology: Flowering summer–fall.
Habitat: Waste grounds
Elevation: 10-500 m
Introduced; La., N.J., N.Y., Pa., S.C., Tex., Va., native of s Asia, widely escaped from cultivation.