Dioecious erect or spreading shrub to 2.5 m high. Leaves imparipinnate, 0.4–0.8 cm long excluding petiole; lateral leaflets 4–6, rarely 2 or 3, narrowly obovate to obovate, concave, sometimes conduplicate, obtuse, rarely toothed, at apex, entire and narrowly cuneate at base, 1.5–3.5 mm long, rarely to 5 mm, 0.8–1.5 mm wide, puberulent; the terminal leaflet usually smaller, sometimes lobe-like, otherwise similar to laterals; petiole 1–3 mm long. Flowers solitary or sometimes paired; pedicels 2–3.5 mm long. Sepals 4, ovate, 1–1.8 mm long, caducous. Stamens 6–8. Ovary pubescent. Capsule 4-winged, transversely elliptic in lateral view, contracted along central axis, 6–7.5 mm long, 8–10 mm wide, sparsely pubescent on body of carpels and sometimes on wing margins; wings 1.5–2.5 mm wide, membranous; dehiscence septicidal.
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