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Leaves 8–30(50) x 2–8(17) mm., opposite, sessile to subpetiolate, elliptic to narrowly ovate, acute or subacute, slightly mucronate at the apex, cuneate at the base, ± hirsute to glabrescent; margin incrassate, ± undulate–crenate; midvein prominent beneath, lateral veins usually obscure.
Annual herb, prostrate or decumbent, 0.1-0.5 m high. Leaves opposite, sessile, elliptic to narrowly obovate, margins cartilaginous, ± undulate-crenate. Flowers white, in dichotomous forks or terminal, appearing lateral. Flowering time Jan.-Mar.
Prostrate or decumbent herb. Stems 100-500 mm long, dichotomously branched. Leaves opposite, sessile to subpetiolate, elliptic to narrowly ovate, acute, cuneate at base, margin cartilaginous, ± undulate-crenate. Flowers white.
Inflorescence leafy with flowers in dichotomous forks or terminal, but usually becoming overtopped and then appearing lateral; pedicels 0·8–35 mm. long, usually ± hirsute.
Perennial ?short–lived herb with prostrate or decumbent stems, 10–50 cm. long, often rooting at the nodes, dichotomously branching, ± hirsute or rarely glabrescent.
Ovary subinferior, 3–locular; style shorter than the corolla, eglandular, slightly thickened in the upper part, usually glabrous below; lobes 3, up to 1 mm. long.
Seeds 0·5–0·6 mm. long, elliptic in outline, bluntly trigonous; testa reticulate, pale brown to almost black.
Calyx–lobes 1·6–3 mm. long, narrowly triangular, 4 hirsute, denticulate, usually recurved in fruit.
Stamens with filament–bases slightly broadened, ciliate; anthers 0·8–1·8 mm. long.
Corolla 2·4–6·4 mm. long, white, usually glabrous; tube 0·8–2·6 mm. long.
Hypanthium hemispherical, 10–nerved, hirsute or rarely glabrous.
Capsule 3–locular with 3 thin and low valves.
