Herbs, spreading, annual, 1-4 dm, glabrous, greenish to grayish. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.05-0.3 dm, often obscured by leaves, glabrous. Leaves basal; petiole 1-4 cm, tomentose; blade round-cordate, 1-3 × 1-3 cm, densely white-tomentose abaxially, less so to floccose and greenish adaxially, margins plane. Peduncles absent or erect, straight, slender, 0.1-0.5 cm, glabrous. Inflorescences cymose, spreading and flat-topped, 5-30 × 10-50 cm; branches glabrous; bracts scalelike, 1-1.5 × 0.4-1 mm. Involucres turbinate, 2-2.5 × 1.3-2 mm; teeth 5, erect, 0.4-0.5 mm. Flowers 1.5-2 mm, glabrous; perianth white with greenish to reddish midribs, becoming faintly pinkish, glabrous; tepals dimorphic, those of outer whorl obovate to cordate, those of inner whorl lanceolate; stamens exserted, 2-3 mm; filaments pilose proximally. Achenes light brown, 3-gonous, 2-2.3 mm, glabrous. 2n = 40.
Home