Perennial herb branching from base, diffuse, often prostrate with ascending stems, with short and long simple hairs and glandular hairs, or with glandular hairs only (var. glandulosa ), the glands cream-coloured. Leaves shortly petiolate or sessile, the lamina oblong, narrowly cuneate to cuneate, 0.7–4 cm long, 0.5–1.5 cm wide, lower surface hirsute, upper surface glabrescent; apex truncate, usually with short obtuse lobes. Pedicels 3–10 mm long. Sepals 2–3 mm long. Petals paired; upper pair spathulate, 5–7 mm long including claw; claw 1–1.5 mm long; lower pair obliquely ovate, curved, 4–4.5 mm long. Stamens 2–3 mm long. Capsule transversely oblong in outline, 10–14 mm long, c. 10 mm wide, crustaceous, hirsute and with sparse glandular hairs.