Shrubs, scandent, 2-10 m. Stems rusty brown, finely puberulent, glabrescent. Leaves 5-foliolate; rachis 15-20 cm, including petiole 3-6 cm; leaflet blades lanceolate, oblong, or ovate, 3.5-9(-11) × 2-4 cm, papery, secondary veins 5 or 6 on each side of midvein, curved apically near margins, and prominent on both surfaces, base obtuse to rounded, apex cuspidate, acute, or acuminate. Panicles terminal, 10-12 cm, thick, rusty tomentose; flowering branchlets 6-10 cm, straight. Flowers 1.6-2.4 cm. Pedicel and calyx tomentose. Corolla violet to purple; standard oblong, with 2 basal calluses, outside densely sericeous. Ovary stipitate, tomentose, with 4-8 ovules. Legume linear-oblong, 10-14 × 1.5-2 cm, stipitate, flat, brown tomentose, apex beaked. Seeds 4 or 5 per legume, chestnut-brown, obliquely oblong, ca. 1 × 1.2 cm. Fl. May-Sep, fr. Jul-Nov.
Forest and river valleys. Thickets, lowland sparse woodlands, forest margins, open places on slopes; at elevations up to 1,500 metres.
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Forest and river valleys. Thickets, lowland sparse woodlands, forest margins, open places on slopes; at elevations up to 1,500 metres.
Can be grown by cuttings or seedlings. Seeds needs soaking.
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