Annual, prostrate or semiprostrate herb. Stem weak, with stiff, reflexed, simple hairs and with a line of soft, simple or stellate hairs along one side but in different positions at each node. Leaves 2-6 cm long, 3-7 partite, cordate or truncate at base, upper surface nearly glabrous except the midvein, lower with scattered appressed stellate hairs; lobes unequal, central one usually largest or the central 3 equal and larger than the others, somewhat oblong, elliptic or obovate, irregrularly toothed, obtuse or acute; stipules 2-3 mm long, filiform; petiole 2-6 cm long, with scattered, soft or slightly hispid, simple hairs, and with a line or hairs along one side. Flowers solitary, axillary; pedicel 3-13 mm long, covered by dense slightly long, spreading, usually simple hairs. Epicalyx segments 7-10, with simple, tubercled hairs, linear, 7-10 mm long, 1-1.5 mm broad. Calyx slightly longer than epicalyx, fused at base; lobes (1-) 3 (-4) mm broad, lanceolate, 3-nerved, slightly hispid and simple hairy on the margin and nerves. Corolla 1.5-2 cm long, pinkish to pale yellow with a purple centre; petals obovate, 8-12 mm broad, glabrous. Staminal column 4-6 mm long, glabrous, antheriferous above the middle. Capsule globose or somewhat oblong, 6-7 mm across, hairs simple and hispid towards top, beaked. Seeds 3-4 per cell, black, covered with brown hairs.