Spreading annual to 15 cm high, wider than high. Leaves with 2 pairs of leaflets; petiole flattened, 4.5–9.5 mm long, attenuate or rounded; leaflets succulent, elliptic, 3.5–8 mm long, 2.5–8.5 mm wide, continuous with petiole and not articulated at base, rounded at apex. Pedicel 0.8–2.5 mm long in flower. Sepals 4, 2.2–3.5 mm long. Petals 4, obovate, 1.9–3 mm long, slightly shorter than sepals, yellow drying white. Stamens 8; filaments 1.5 mm long, winged in lower half, without appendages. Disc 4-lobed; lobes free, oblong. Ovary 4-angled, 4-celled; style 0.4–0.5 mm long; stigma capitate, not lobed. Capsule erect, rounded-oblong, 7–11 mm long, 4-angled, 4-celled, lacking white circular glands along the same-coloured longitudinal grooves of each of the 4 sides, or these sparse and confined to apex of groove and the 4 angles continuous apically into 4 erect, narrowly elliptic and somewhat falcate, 0.5–1 mm long appendages without a noticeably constricted base; pedicel 1–2.5 mm long; fruiting style 0.6–1.0 mm long. Seeds (1–) 2 or 3 per cell, 2.5–3 mm long, smooth, shining, rapidly taking up water.
Recorded from saltpans, samphire flood plains, limestone formations associated with moundsprings, gypseous flats and sand hills.
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