Initially erect, becoming decumbent and spreading, annual herb, to 25 cm high, wider than high. Leaves with 1 pair of leaflets; petiole subterete or with narrow wing, 3.5–12 mm long; leaflets succulent, obliquely obovate, 6–25 mm long, 2.5–14 mm wide, articulated at base or continuous with petiole, rounded or emarginate at apex. Flowers paired at each node. Pedicel 1–3 mm long in flower, erect. Sepals 5, c. 3 mm long. Petals 5, obovate, 4–4.7 mm long, longer than sepals, yellow drying white. Stamens 10; filaments 2–2.4 mm long, winged at base; wing oblong, erose apically. Disc 5-lobed, sinuate; lobes joined. Ovary not angled or 5-angled, 5-celled, glabrous; style 1–1.5 mm long; stigma subcapitate, not lobed. Capsule pendent, 5-angled, 5-celled, transversely broadly elliptic, 4–5 mm long, rounded at apex; pedicel 3–5 mm long; fruiting style 1–1.5 mm long. Seeds 1 (2) per cell, 2.5–3.5 mm long, minutely verrucose, black, shiny.
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