Lianas, 6-7 m, evergreen. Leaves (3 or)5-foliolate; rachis 5-14 cm, including petiole 2.5-3.5 cm; leaflet blades elliptic, oblong, or obovate-oblong, 5-8(-15) × 2-5(-7) cm, leathery, glabrous, base broadly cuneate to rounded, apex obtuse and slightly emarginate. Inflorescence rachis and pedicels thinly puberulent; pseudopanicles terminal or axillary, 15-30 cm, narrow; rachis nodes with up to 15 flowers on short filiform branchlets. Pedicel ca. 1 cm. Flowers 1-1.2 cm. Calyx red, obliquely campanulate, ca. 4.5 mm, appressed pubescent but glabrescent. Corolla whitish, 1-1.2 cm; standard suborbicular, puberulent, apex emarginate. Ovary sessile, yellowish pubescent. Legume obliquely ovoid to obliquely oblong, 2-5 × 2.2-2.5 cm, compressed, glabrous; abaxial suture with a ca. 1 mm wide wing, adaxial suture with a 3-4 mm wide wing. Seeds 1 or 2 per legume. Fl. Apr-Jun, fr. Jul-Oct.
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