Leaves petiolate; petiole 3–10 mm. long, glabrous or less often minutely pubescent at the base; lamina elliptic or narrowly so, 2·5–11 x 1–4·6 cm., at the apex acuminate, less often acute, rounded or emarginate, cuneate at the base, glabrous on both surfaces; on each side 6–10 conspicuous secondary veins.
Corolla tube white to greenish-yellow, 1·3–3 mm. long, outside glabrous to sparsely pubescent where exposed; inside with tufts of stiff hairs at 0·2–1·2 mm. from the base; lobes white to greenish-yellow, 1·8–4·8 mm. long, triangular, glabrous on both sides.
Pistil 1·7–1·9 mm. long, carpels 0·9–1 mm. long; disk with a ring 0·1–0·2 mm. high and lobes c. 0·1 mm. long; style c. 0·2 mm. long; clavuncula c. 0·3 mm. long; stigma 0·2–0·3 mm. long.
Flowers aromatic, in 3–20-flowered axillary cymes, fairly congested, and (less often) also at the same time in a terminal thyrsoid, many-flowered lax inflorescence.
Follicles, 6–30 cm. long and 2–5 mm. in diam., often slightly constricted between the seeds, brown-pubescent outside, glabrescent.
Sepals 0·6–1·2 mm. long, ovate to triangular, outside pubescent, inside pubescent except at the base, ciliate.
Liana up to 15 m. or more high, twining and climbing over shrubs and in trees.
Stamens with the filaments 0·3–0·4 mm. long; anthers 1·4–1·8 mm. long.
Seed 1·2–1·3 x 0·1 cm. with a coma 14–16 mm. long.
Peduncle 6–40 mm. long, pubescent.
Branchlets pubescent, glabrescent.