Slender annual herb, prostrate or often sprawling through other shrubs, to 40 cm high and 1 m wide. Leaves with 1 pair of leaflets; petiole subterete, 4–10 mm long; leaflets succulent, linear, 8–21 mm long, 0.7–2.2 (–3) mm wide, articulated at base, acute to acuminate at apex. Pedicel erect, 3–15 mm long in flower. Sepals 4, 2.5–5.2 mm long. Petals 4, obovate, 4.2–8 mm long, longer than sepals, bright yellow drying white. Stamens 8; filaments 3–4.5 mm long, not winged, without appendages. Disc 4-lobed; lobes free, semicircular, succulent, papillose on margin. Ovary 4-angled, 4-celled, glabrous; stigma capitate, not lobed. Capsule 4-angled, 4-celled, 4–7.5 (–8) mm long, obliquely truncate at apex; pedicel 10–18 mm long, reflexed; fruiting style 1.0–3 mm long. Seeds 1 or 2 per cell, c. 3 mm long, tuberculate.
Very variable in its habitat but usually found in openareas under mallee, mulga, western myall, Melaleuca spp., Casuarinacristata or within blue-bush or salt bush flats. Found in limestone or insand.
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