Scandent shrub or climber, up to 3 m tall; stems reddish when young, later grey, somewhat angled and ridged, glabrous; tendrils c. 3.5–5 cm long. Leaves glabrous; petiole 1–10 mm long; blade ovate, up to 4.5 x 2.5 cm, truncate to subcordate at the base, narrowly rounded to acute and apiculate at the apex, with somewhat dentate margins. Flowers usually produced before the leaves, in much-branched glabrous 1.5–4 cm long inflorescences; peduncle 3–10 mm long; pedicels 2–4 mm long. Calyx c. 1.2 mm in diam., glabrous. Petals yellowish-green, c. 2 mm long, glabrous. Fruits ellipsoid, 10–12 x 5–7 mm, dark purple when ripe and with a glaucous covering. Seed elliptic in outline, compressed, 8–9 x 5–6 mm, smooth apart from dorsal ridge.