Herbs, annual, yellowish green, to 22 cm, glabrous or lanuginose; trichomes all candelabriform. Stems ascending or decumbent, herbaceous; buds absent on stem bases. Leaves: petiole to 1.5 cm; blade yellowish green, widely obovate, trullate, or lanceolate, 0.7-2.4 × 0.6-2.1 cm, fleshy, membranous when dry, base attenuate or oblique, glabrous or nearly so. Inflorescences 2-3-flowered; involucral leaf petiole to 0.4 cm, blade ovate, very widely ovate, narrowly elliptic, widely depressed-ovate, or obovate, 0.2-2.5 × 0.2-1.4 cm, fleshy, base attenuate or oblique, apex acute to obtuse; involucres on secondary branches formed by connation of involucral leaf bases, which become indurate and sometimes adnate with leaf bases; bracts widely ovate, 0.8-1 × 0.3-0.6 mm, apex acute or obtuse, distinctly lanuginose or glabrous; bracteoles 0.7-2 × 0.5-0.7 mm, apex acute, distinctly lanuginose or glabrous. Flowers 2-4 mm; tepals yellowish, 2-3.5 × 0.8-1.7 mm, distinctly lanuginose; staminal cup 0.5-0.6 mm; filaments 0.3-0.7 mm; anthers 0.4-0.6 mm; pseudostaminodes on short tissue lobes or absent; ovary 0.6-0.7 × 0.7-0.8 mm; style absent; stigmas 0.1-0.3 mm. Utricles 1.3-1.6 × 0.9-1.2 mm. Seeds white or brown-red, 1.5-1.8 × 1.4-1.7 mm.
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