Prostrate, ±delicate herb, becoming glabrous; stems 10–50 cm long, reddish, without corky bark. Leaves alternate, with (3–) 4 (–6) pairs of leaflets; petiole 3–10 mm long; leaflets elliptic to obovate, 3–9 mm long, 1.8–6.8 mm wide, oblique at base, very shortly acuminate, sparsely white-pilose on both surfaces, ±concolorous. Flowering pedicel 6–10 (–20) mm long, upright, sparsely pubescent. Sepals 4.5–6.8 mm long, adaxially glabrous except for apical hairs, abaxially sparsely appressed-pilose. Petals 5.6–10 mm long. Stamens 10, all fertile or some staminodal; filaments 3.8–5 mm long. Ovary densely white-pubescent; ovules 2 per cell; style 1.3–3.5 mm long in flower; stigma 0.3–0.5 mm long. Fruit star-shaped with apical conical projection, tardily dissociating into 5 glabrous or sparsely pubescent, 3-spined cocci, the longer dorsal pair of spines 6–9.5 mm long; fruiting pedicel 10–35 mm long.
Home