Liana, 25 m high, sometimes creeping shrub or small tree. Branches glabrous. Leaves 2-3-jugate, glabrous; petiolules 0.5 cm. Leaflets ovate to elliptic or oblong, 7-17 by 3-7 cm, thin-chartaceous to thin-coriaceous; base broadly cuneate to rounded, rarely acute, in lateral ones often slightly oblique; apex acuminate; nerves 6-8 pairs, patent, rather strongly curved, usually distinctly looped and joined, veins (transverse-) reticulate. Inflorescences up to c. 25 cm long, rather laxly branched, branches rather long, ascending, subspicate, glabrous the tips excepted. Bracts minute. Sepals ovate, blunt or acute, 2¼-3¼ by 1-1½ mm, faintly keeled, on both sides variously pubescent. Petals ovate-lanceolate, 8.5-9.5 mm long, blunt, tomentose on both sides, punctate. Stamens for 1½ mm connate, apparently all fertile, long filaments more or less densely glandular-pubescent, short ones either sparsely so or glabrous. Fruits ellipsoid, more or less bulging, 2-3½ by 1½-2½ cm, stipe ¼-1 cm long, beak minute, acute, at or near the apex; pericarp thin-coriaceous to woody, outside laxly obliquely veined, on both surfaces glabrous.
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