Herbs, spreading, annual, 0.5-4 dm, glabrous, greenish, grayish, or reddish. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.2-0.8 dm, glabrous except for few hairs proximally. Leaves basal; petiole 0.5-6 cm, tomentose to floccose; blade obovate or reniform to rounded, 0.5-2(-2.5) × 0.5-2 cm, densely white-tomentose abaxially, tomentose to subglabrous and grayish or greenish adaxially, margins plane. Inflorescences cymose, open, 5-35 × 5-35 cm; branches glabrous; bracts 3, scalelike, 1-3 × 1-2 mm. Peduncles erect, mostly curved, slender to capillary, 0.3-1.5 cm, glabrous. Involucres turbinate to turbinate-campanulate, 1.5-2(-2.2) × 1.5-2.5 mm, glabrous, glaucous; teeth 5, erect, 0.5-0.8 mm. Flowers 1-1.5 mm in early anthesis, becoming 1.5-2 mm; perianth yellowish to yellow in early anthesis, becoming reddish, glandular; tepals dimorphic, those of outer whorl broadly ovate, those of inner whorl oblong; stamens exserted, 1.5-2.5 mm; filaments pilose proximally. Achenes brown, lenticular, 0.8-1 mm, glabrous. 2n = 32.
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