Somewhat succulent annual herb, sometimes forming a mat; stems 10–50 cm long, glabrous. Leaves with 4 or 5 pairs of leaflets, the lowest pair inserted very close to stem; leaflets narrowly ovate to ovate, oblique, 8.5–14 mm long, 2.7–5 mm wide, acute, very sparsely ciliate or glabrous. Flowering pedicel 12–15 mm long, upright. Sepals c. 3.5–4 mm long, glabrous. Petals obovate, 4.5–8 mm long, yellow throughout. Extrastaminal glands 5; intrastaminal glands 5. Stamens 10, in 2 whorls, all fertile, at maturity equal to stigma; filaments c. 2.5–4 mm long. Ovary 5-lobed, glabrous; style (including stigma) c. 1.5 mm long. Fruit glabrous, of 2–5 ?tardily dissociating, fully developed cocci; pedicel to 25 mm long, deflexed. Cocci c. 4 mm high, smooth, with pair of divergent basal, and sometimes medial, dorsal spines.
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