Herbs, perennial (not annual), erect, ca. 30 cm tall. Stems 4-angled, slender, much branched, glabrous. Leaves in whorls of 4 or 5, sessile; blade narrowly ovate or ovate, abaxially pilose along veins, apex acuminate; principal vein 1 or with 2 short and weakly developed lateral veins. Inflorescences terminal, with few-flowered trichotomous cymes; peduncles glabrous; pedicels 1-2 mm, glabrous. Ovary ovoid-subglobose, ca. 1 mm, with undeveloped trichomes. Corolla white, rotate, ca. 3 mm in diam.; lobes 4, acute. Mericarps subglobose, with dense uncinate trichomes. Fl. and fr. Jul.
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