Dioecious spreading shrub to 1.5 m high. Leaves imparipinnate, 0.3–1.2 cm long excluding petiole; lateral leaflets 2–10, oblanceolate to broadly obovate, rarely narrowly spathulate, concave above, obtuse, rounded or obscurely toothed or notched, cuneate at base, 1.6–8 mm long, 1–3 mm wide, puberulent; entire or irregularly sinuolate, rarely toothed; terminal leaflet shorter and lobe-like in var. acrolobata , similar to laterals in var. microzyga ; petiole 1.5–5 mm long. Flowers solitary or paired; pedicels 3.5–5 mm long. Sepals 4, ovate, 1.8–2.6 mm long, caducous. Stamens 8, rarely 9 or 10. Ovary pubescent. Capsule 3-winged, rarely 4-winged, broadly to transversely elliptic in lateral view, 10–13.5 mm long, 10–17.5 mm wide, glabrous or rarely with few hairs on body of carpels; wings 2.5–5 mm wide, membranous; dehiscence septifragal.
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