Leaves simple; petiole up to 5 cm. long; leaf-lamina up to 10·3 × 9·3 cm. but usually smaller, broadly ovate, acuminate at the apex, margin entire or obscurely dentate, usually truncate at the base or sometimes slightly cordate or rounded, tertiary veins on lower surface not raised; stipules 2 × 2 mm., very broadly ovate, ciliate, caducous.
A shrub or vine up to 9 m tall. It has gum like sap. It has tendrils opposite the leaves. The leaves are round or slightly long. They are about 5 cm long. They have a long drawn out tip. The flowers are yellow. The fruits are oval and 20 mm long. They are red and covered with a bloom.
Climber to tops of trees; older sterns woody, not winged, producing gumlike exudate when cut; plant with scattered caducous hairs when young, otherwise ± glabrous; tendrils 2-fid, becoming woody on older sterns.
Cymes lax; peduncle up to 6 cm. long; pedicels 4–5 mm. long; bracts and bracteoles up to 1 × 1 mm., broadly ovate.
Seed 1, 16 × 8 mm., with a strong dorsal crest and a few lateral ridges.
Ripe fruit red with a bloom, up to 20 × 10 mm., ellipsoid, glabrous.
Flower-bud 2·5 × 2 mm., very broadly oblong-cylindric.
Ovary glabrous; style 1·5 mm. long.
Calyx c. 0·5 mm. long, ± entire.
Petals yellowish-green.