Dioecious erect shrub to 2 m high. Leaves simple, obscuring branches, sessile, linear, concave or channelled above, convex or ridged below, obtuse, entire, narrowly cuneate at base, 1.2–2.2 cm long, 0.05–0.1 cm wide, glabrous. Flowers solitary or in 3-or 4-flowered terminal cymes; pedicels 1–3 mm long. Sepals 4 or 5, oblong or linear to linear-lanceolate, 0.6–1.5 mm long, longer in female than male flowers, caducous. Stamens 5, rarely 6. Ovary glabrous. Capsule 3-winged, transversely elliptic in lateral view, 9.5–11 mm long, 12–16.5 mm wide, glabrous; wings 3–5 mm wide, membranous; dehiscence septifragal.