Annual, puberulent, 10-30 cm. Stems thin, flaccid, prostrate to ascending. Leaves (1-)1.5-2.5(-4) cm., generally less than 1 cm. broad, ovate or ovate-lanceolate, tapering at base and apex, minutely papillose and ciliate above; petiole shorter than blade, filiform, pubescent. Cymes many, subsessile at axils, dense. Bracts small, about as long as flowers, lanceolate, green, scarcely growing in fruit. Hermaphrodite flowers few, sterile, the rest pistillate, fertile. Perianth about 1.5 mm., with 4 connivent segments enclosing the brownish, shining achene. Fl. February-May.