Erect to procumbent, glabrous annual to 15 cm high. Leaves narrowly linear, 5-15 mm long. Inflorescence a raceme; flowers white with pink throat, arranged singly, subtended by bract at base of slender pedicel 3-8 mm long. Hypanthium much shorter than narrowly triangular sepals, together 1.5-2.5 mm long. Petals narrowly spathulate, 5-10 mm long. Cocci obovoid, 0.7-0.8 mm long, densely papillose, covered by hooked hairs.
Grows in sand or clay or sometimes gravelly soil, on ridges and plains, sometimes in depressions, in hummock grassland and woodland.