Woody climber, to more than 40 m long. Leaves: rachis 5-9.5 cm, subglabrous-or mostly densely puberulous-tomentose; leaflets 5-7 on each side of the pinnae, only the distal pair opposite, chartaceous, obliquely narrowly obovate-elliptic-oblong, 1.4-4 by 0.7-1.8 cm, base asymmetrically rounded, apex rounded, emarginate, main vein puberulous, both surfaces glabrous or lower surface scattered patendy puberulous, sometimes glaucous. Inflorescences: spikes 19-40 cm, rachis densely puberu-lous-shortly tomentose. Flowers with inconspicuous pedicels, yellowish white, white, or greenish white, pentamerous, male or bisexual. Calyx broadly cup-shaped 0.5-0.6 mm, glabrous; teeth inconspicuous. Petals lanceolate, c. 2 mm, acute, glabrous. Stamens c. 4 mm. Pod not seen as a whole; segments 9-10 cm long, 10-13 cm wide, epicarp coriaceous, shrinking, endocarp parchment-like. Seeds brown, circular in outline, flat, c. 4 cm in diameter.
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