Slender, sprawling, or prostrate, growing in tangles. Stems brown, very shortly hairy, up to 45 cm long. Leaves alternate, distant, reflexed, ovate, oblong, or ovate-lanceolate, mm long, 1-2 mm wide, flat, rather thin, acute, the edges slightly thickened and revolute, entire or with 1-2 small teeth at each side. Leaves not fasciculate. Flowers terminal on the branches, solitary or in lax groups of 2-3. Pedicels very slender, 0.5-1.5 cm long. Calyx lobes 1.5 mm long, linear, more or less keeled at the base. Corolla white, with pink or purple lines on the back, less often uniformly coloured, the tube very short. Bases of the filaments oblong, sub-obtuse, finely ciliate. Ovary almost superior, the lower part less than 1 mm long, rounded or very slightly pointed at the base. Style slightly thickened below the stigma. Fruit 3-chambered, 2 mm diam. valves shorter than the calyx lobes but longer than the lower part.
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Sprawling, tangled shrublet to 45 cm with thin, wiry branches. Leaves sparse, reflexed, ovate-oblong, margins thickened, sometimes slightly toothed. Flowers in lax, terminal cymes, white, ± 5 mm diam., tube ± 1 mm long, ovary half-inferior, glabrous.