Erect herb to 40 cm. Stems glabrous or minutely pubescent. Leaves ovate to ovate-lanceolate, acute, tapering at base, 40–80 mm long, 10–40 mm wide; margins flat. Inflorescence a very shortly pedunculate, terminal umbel-like cyme, with numerous flowers; pedicels 10–30 mm long. Flowers 10–15 mm diam., white. Sepals and petals obovate, 4–8 mm long, 2–3 mm wide, involute. Stamens 4–5 mm long, filaments 2.5–3.5 mm long; anthers c. 2 mm long. Ovary ovoid, 2–3 mm long; style 4–5 mm long; stigmas 2–2.5 mm long. Capsule ovoid, smooth, 7–8 mm diam. Seeds few, ovoid, 3–4 mm long, pale brown; strophiole not obvious on dry seed.