Dioecious or rarely polygamo-dioecious erect shrub to 2 m high. Leaves simple, sessile, linear or subfiliform, concave or channelled above, convex below, falcate, entire, not constricted at base, 2.5–5 cm long, 0.1 cm wide, glabrous; obtuse and often recurved at apex. Flowers in 3-or 4-flowered terminal cymes, rarely paired. Sepals 4, ovate, 1.5–2.5 mm long, persistent. Stamens 8. Ovary sparsely pubescent. Capsule 4-winged, transversely elliptic in lateral view, 9.5–12 mm long, 11–14 mm wide, sparsely puberulent; wings 2.5–4 mm wide, membranous; dehiscence septifragal.