Liana, glabrous in all parts except sepals and seed. Twigs slightly angular. Leaves obovate-oblong to obovate-lanceolate, rarely lanceolate, c. 3.5-8.5 by 1.5-3 cm, shortly acuminate, gradually attenuate at base, nerves c. 5-7 pairs, 0.5-1.5 cm petioled. Racemes axillary, 1 or 2 together, including the peduncle 2-6 cm long. Bracts and bracteoles persistent (?). Flowers 4.5-6.5 mm long, white with red keel, on 3-5 mm long pedicels. Sepals adnate over 0.5-1 mm to the petals, ± orbicular shortly ciliate, the alae broadly obovate. Upper petals obliquely obovate to oblong; keel emarginate. Filaments halfway free. Ovary obovate, apically with a 1 mm long sterile part. Capsule obovate-linear, c. 18-22 by 2-2.5 mm, shortly acuminate at apex, gradually narrowed towards base, unwinged. Seed 5-1 by c. 1 mm, completely covered by white silky hairs c. 1.5 cm long.
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