Prostrate or semi-erect herb, branching from base, papillose but stems almost glabrous. Leaves lanceolate to rhomboid, 3–30 mm long, 2–10 mm wide, tapering to petiole up to 10 mm long. Flowers solitary or occasionally paired, sessile, very small. Perianth segments 4, lanceolate, acute, c. 1 mm long, sparsely papillose. Stamens 4, alternating with perianth lobes. Ovary 4-angled; styles 4, 0.5 mm long. Fruit cuneate at base, heart-shaped, 5–8 mm long, 5–10 mm wide, with 2 thin membranous wings which are round at apex and extend above fruit. Seeds 4, pear-shaped, c. 1.5 mm long, honey-coloured.