Twiner. Branches terete, 3.5-6 mm ø, slightly striate, glabrous. Leaves subcoriaceous, ovate-oblong, oblong-elliptic, rarely ovate, 16-20 by 6.5-10 cm; apex short-acuminate; base obtuse, sometimes slightly concave, or subtruncate, glabrous; basal nerves 2 pairs, the inner one ascending to the apex, elevated and prominent beneath, slightly depressed above, the outer pair shorter and much weaker, ascending close to or along the margin, slightly elevated beneath, obscure or invisible above; veins distinctly transverse, joined by closely reticulate veinlets, slightly elevated beneath, obscure or invisible above; petiole terete, 3-8 cm. Flowers unknown. Infructescences cauligerous, very short, condensed, bracteate, knobby; bracts lanceolate, 2-6 mm long, slightly puberulous on both surfaces, glabrescent. Capsules cylindric, 3-3.5 by 1.2 cm, obtuse at both ends, glabrous, smooth (but finely verrucose under a hand lens); pedicel c. 3.5 cm. Seeds triangular, 5 by 4-4.5 mm, subcordate at the base, not winged, finely verrucose on both surfaces, funicle with a thin expanded appendage covering the upper surface of the seed.