Leaves simple; petiole up to 3 cm. long; leaf-lamina up to 7 × 6 cm., broadly ovate, apiculate at the apex, margin serrate, cordate at the base; stipules 2·5 × 1·5 mm., oblong.
Woody liane, completely glabrous; stems cylindric; tendrils 2-fid.
Ovary glabrous; style 1 mm. long; stigma subcapitate.
Calyx 0·-25–0·5 mm. long, subentire.
Flower-bud 1·5–1·75 × 1·5 mm.
Young fruit glabrous.
Petals yellow-green.