Herbs, spreading to erect, annual, 0.5-6 dm, glabrous, grayish, greenish or reddish. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.3-2 dm, glabrous. Leaves basal or sheathing up stems 2-10 cm; petiole 1-4 cm, tomentose; blade round-ovate to orbiculate, (0.5-)1-2(-2.5) × (0.5-)1-2(-2.5) cm, white-to grayish-tomentose abaxially, tomentose to floccose or glabrate and grayish or greenish adaxially, margins plane. Inflorescences cymose, open to diffuse, 5-50 × 5-40 cm; branches glabrous; bracts 3, scalelike, 1-2 × 1-2.5 mm. Peduncles spreading to ascending or deflexed to cernuous, infrequently absent, straight or curved, slender, 0.1-2.5 cm, glabrous. Involucres turbinate, (1-)1.5-2 × 1-1.5 mm, glabrous; teeth 5, erect, 0.4-0.7 mm. Flowers 1-2 mm, glabrous; perianth white to pinkish, becoming rose to red; tepals dimorphic, those of outer whorl pandurate, those of inner whorl obovate; stamens mostly exserted, 1-2 mm; filaments pilose proximally. Achenes light brown to brown, 3-gonous, 1.5-2 mm, glabrous.
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