Herbs perennial, densely grayish white stellate hairy. Stems diffuse, decumbent or ascending, rooting at nodes basally, 15--35(--50) cm, branched, stellate hairy. Leaves lanceolate or linear-lanceolate, rarely narrowly ovate, 1.5--3(--5) cm × 3--5(--9) mm, gray-green, both surfaces stellate hairy, midvein raised abaxially, base clasping, apex acute. Flowers numerous, in terminal dichotomous cymes, stellate hairy; bracts herbaceous, stellate hairy. Pedicel 0.3--1.5 cm, slender. Sepals 5, gray-green, linear-lanceolate, 3--4 × ca. 1.5 mm, stellate hairy, margin membranous, apex acute. Petals 5, slightly shorter than sepals, 2-cleft nearly to base; lobes narrowly linear. Stamens 10, slightly shorter than petals. Styles 3. Capsules ovoid, ca. 4 mm, slightly longer than persistent sepals, 6-valved. Seeds brown, reniform, ca. 0.8 mm, with protuberances. Fl. Jun--Jul, fr. Aug--Sep.
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