Herbs perennial. Stems numerous, tufted, decumbent or ascending, ca. 20 cm; branches quadrangular, slender, white villous. Distal several leaves slightly denser than middle ones. Leaves narrowly ovate, 1.5--2.5 cm × 5--13 mm, abaxially paler than adaxially, veins prominent, base slightly rounded and narrowed, apex acuminate. Flowers numerous (to 13) in sparsely dichotomous cymes; peduncles long; proximal bracts herbaceous, other bracts membranous. Pedicel long, 1.5--2.5 cm, slender, declinate. Sepals 5, lanceolate, ca. 5 mm, glabrous or long hairy at anthesis, veins 3, margin narrowly membranous, apex acute. Petals 5, subequaling sepals, 2-cleft nearly to base; lobes narrowly linear. Stamens 5, nearly as long as petals; filaments filiform. Styles 3, subequaling filaments. Capsule ca. 1/2 as long as persistent sepals, 3-valved. Seeds rarely formed, tuberculate.
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