Plants herbs, erect or spreading, annual, 1–5 dm tall, villous, greenish, yellowish-green, or reddish; stems with caudex absent, the aerial flowering stems erect or nearly so, solid, not fistulose, 0.1–0.8 dm long, villous; leaves basal and cauline; basal: petiole 0.1–0.5 (1) cm long, blade linear-lanceolate to linear-oblanceolate, 1–4 cm long, 0.1–0.4 cm wide, white-lanate abaxially, villous and greenish to yellowish-green adaxially, the margins plane or revolute; cauline: sessile, blade linear, 0.5–2.5 cm long, 0.05–0.3 cm wide, tomentose abaxially, thinly villous or glabrous and greenish adaxially; inflorescences cymose, open, 5–45 cm long, 3–40 cm wide, the branches villous, the bracts 3–8, semi-foliaceous, 5–15 mm long, 0.3–1.5 (2) mm wide; peduncles erect or nearly so, straight, slender, (1) 2–5 (7) cm long, sparsely villous or glabrous; involucres campanulate, 1–2 mm long, 2–3 mm wide, villous, the teeth 5, mostly erect to spreading, 1–3 mm long; flowers 1–3 mm long, the perianth white to rose or yellow, sometimes becoming reddish, glabrous, the tepals dimorphic, those of outer whorl oblong-ovate, 2–saccate-dilated proximally, those of inner whorl linear- oblong, the stamens mostly included, 1–1.5 mm long, the filaments mostly pilose proximally; achenes brown to blackish, lenticular, 1.8–2 mm long, glabrous.