Herbs annual. Roots slender. Stems branched at base, yellow, slender, 5--10 cm, glandular villous. Petiole 0.5--1.5 cm; leaf blade ovate, 4--5 × 2--4 mm, both surfaces glabrous, apex rounded or obtuse. Cymes dichasial, many flowered; bracts similar to leaves but smaller. Pedicel 0.5--1.5 cm, sparsely white villous. Sepals 5, lanceolate-ovate or ovate, ca. 2 × 1.5 mm, white villous abaxially, margin membranous, apex obtuse or acuminate. Petals 5, white, obovate, ca. 2/3 as long as sepals, apex entire. Stamens 10. Ovary ovoid; ovules numerous. Styles 2. Capsule ovoid, ca. 1.5 × as long as persistent sepals. Seeds gray-black, subglobose. Fl. and fr. Jul--Sep.
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