Plants herbs, spreading to somewhat erect, annual, 1–4.5 (6) dm tall, glabrous and often glaucous, yellow- green; stems with caudex absent, the aerial flowering stems erect, occasionally hollow and fistulose, 0.5–2 (3) dm long, glabrous, minutely hirsute or short-hispid proximally; leaves basal, the petioles 1–6 cm long, hirsute, the blades broadly oblong, (0.5) 1–2.5 (4) cm long, (0.5) 1–2 (3) cm wide, short-hirsute on both surfaces and greenish, the margins wavy; inflorescences cymose, open to dense, usually spreading, 5–30 cm long, 5–50 cm wide, the branches usually not fistulose, glabrous, the bracts 3, scalelike, 1–4 mm long, 1–2 mm wide; peduncles mostly erect, straight, capillary, 0.5–1.5 cm long, glabrous; involucres turbinate, 0.7–1 mm long, 0.6–0.9 mm wide, glabrous, the teeth 4 (5), erect, 0.3–0.4 mm long; flowers 1–2 mm long, the perianth yellow to greenish yellow with greenish to reddish midribs, densely hirsute with coarse curved hairs, the tepals monomorphic, narrowly ovate, the stamens exserted, 0.9–1.5 mm long, the filaments sparsely pubescent proximally; achenes light brown to brown, lenticular to trigonous, 1–1.5 mm long, glabrous.

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