Climbing shrub or liana, provided with double tendrils. Twigs slender, mostly sharply quandrangular, glabrous; branches rounded quadrangular. Leaves 7½-20 by 2.5-11 cm, ratio c. 2-3, widest about or sometimes below the middle, thin-chartaceous to papyraceous, beneath copper-red to yellowish brown or sometimes green when dried, smooth and glabrous; base cuneate to rounded; apex short-to caudate-acuminate, acute; strongly 3-5-plinerved; petiole 4-5 mm. Inflorescences axillary, 1.5-6 cm long, lax, few-to many-flowered, puberulous or glabrous. Flowers 5-merous. Sepals c. 1 mm, acute or blunt, outside glabrous, inside glabrous or nearly so. Corolla 3-4 mm long, the tube 0.25-1.25 mm, outside glabrous, inside woolly about the mouth up to halfway the lobes and papillose hairy at the tips. Stamens inserted at or slightly below the mouth, filament 1-3 mm long, anther ovate, elliptic, or oblong, 0.5-0.75 mm long, glabrous. Pistil ¾-2¾ mm long, glabrous. Pedicels in fruit hardly thickened. Fruits globular, c. 2 cm ø, thin-walled, said to be white. Seeds 1, semiglobular, c. 1 cm ø and 8 mm thick, glabrous.
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