Climber, about 1.5(-14?) m. Twigs slack, brownish, brown-puberulous, especially when young, slightly zig-zag; internodes about 3-5 cm. Thorns up to 2 mm long, recurved, mostly wanting. Leaves herbaceous to subcoriaceous, often reddish brown when dry, glabrous above, glabrescent beneath, broadest above, sometimes at the middle, 1.8-2.5(-2.8) times as long as broad, (9.5)-12-16(-20) by 4¼-8½ cm, base mostly narrowed, sometimes rounded, acute to obtuse; top rounded to acuminate, mucronate; midrib above mostly narrowly sulcate; nerves c. 6-8 pairs, glabrous above, glabrescent beneath; petiole 4-10 mm, brown-pubescent, late glabrescent. Panicle mostly brown-puberulous on a c. 5-10 cm long, slender peduncle terminal on a twig of which the upper part has mostly lost its leaves, c. 10-20 by 5-15 cm. Pedicels slender, 4-18 mm. Bracts minute, sometimes wanting. Flowers white to greenish, sometimes tinged reddish. Buds globular, c. 4 mm diam. Sepals 4-6 by 2½-3 mm, the outer pair sometimes sparsely puberulous outside; the inner pair with broad membranous margin, glabrous. Petals 4 (occasionally single flowers with 5 or 6), 4.5-6 by 1-4 mm, suborbicular to subspathulate, sometimes puberulous, especially at the base. Stamens 20-40, 5-6(-8) mm. Ovary ovoid to spindle-shaped, 2 by 1 mm, glabrous; gynophore 2-5 mm, glabrous, in fruit 4-12 mm long, with the pedicel and torus a little incrassate. Mature fruit not known, globular, c. 1.5 cm diam., pericarp thin, leathery, smooth or finely papillate. Seeds 1-4, subglobose to angular, 9-10 by 7-9 by 4-5 mm.
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