Prostrate or sprawling annual with branches to c. 1 m. long. Leaves deltoid to rhombic, 2–8 cm long, 1–5 cm wide, prominently papillose, succulent; petiole 1–3 cm long. Flowers solitary, sessile or subsessile; perianth segments 5, unequal, acute to obtuse, c. 2 mm long, green on inner surface, densely papillose on outer; stamens 10–16; styles 5–11. Fruit dry or thinly succulent, prominently papillose when fresh, turbinate, c. 1 cm long and wide, prominently 4-angled or winged, sometimes with 2 smaller angles, main angles terminating in short conical horns; seeds usually 4–8, narrowly ovoid, pale brown, 2–3 mm long. Flowers most of year.
VVP, GipP, EGL, EGU. WA, SA, Qld, NSW, NI, LHI, Tas. Occasional along the coast mainly in the east, occurring amongst rocks, on silty soils or humified sand.