Decumbent or straggly annual or short-lived perennial herb, to 40 cm high, wider than high. Leaves with 1 pair of leaflets; petiole flattened, 5–10 mm long; leaflets often in unequal pairs, succulent, narrowly elliptic or narrowly obovate, 5–15 (–20) mm long, 1.5–4 mm wide, constricted slightly at junction with petiole but not articulated, obtuse at apex. Pedicel 2–4 mm long in flower. Sepals 4, 2–3.5 mm long. Petals 4, narrowly obovate, 3–5 mm long, usually just longer than sepals, light yellow drying white. Stamens 8; filaments c. 2 mm long, winged at base, without appendages. Disc 4-lobed; lobes free, semicircular, succulent, papillose on margin, less than 1/2 ovary height. Ovary 4-angled, 4-celled, glabrous; stigma capitate, not lobed. Capsule 4-angled, 4-celled, ±truncate or obliquely truncate at apex, 5.8–7 mm long, 5.7–7 mm wide; pedicel 2–5 mm long; fruiting style 0.8–1.6 mm long. Seeds 1 or 2 per cell, 3–4 mm long, reddish brown, verrucose.
Occurs insandy loam or sand dunes, sometimes with mallee shrubland, possibly only afterfire or disturbance.
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