Herbs 5-15 cm tall; stems white, simple or branched. Leaves ovate, 1-4 mm long. Flowers 4-5-merous; sepals narrowly triangular, 3-10 mm long, sometimes recurved; corolla white, 3.5-12 mm long, tube sometimes constricted near throat, 3-10 mm long, lobes elliptic to ovate, 0.5-3 mm long; stamens inserted 1-4 mm below throat, filaments 0.1-1 mm long, anthers 0.5-1.5 mm long, connective sometimes prolonged beyond thecae; ovary ovoid, 1-3 mm long, style 1-9 mm long. Capsule 1-5 mm long; seeds ca. 0.2 mm in diam.
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