Somewhat woody climber up to 30 m., up to 10 cm. thick at base; twigs green or grey-green, often pruinose. Leaf-blades rarely punctate, entire to deeply 3(–5)-lobed, orbicular to ovate or rhomboid, or ± 3(–5)-angular in outline, base cordate to truncate, top obtuse or retuse, rarely subacute, 2.5–11 by 2.5–11 cm., 3-nerved from base with 1 pair of straight nerves from the midrib ending in marginal glands; reticulation rather fine, distinct; margin entire; lobes obtuse, up to 4 cm.; petiole 1.5–11 cm. Gland at blade-base single, on a median subcircular to spathulate appendage 1–3 mm.; blade-glands 0–4, often 2 glands rather approximate to the axils of or contiguous with the upper side nerves; marginal glands 3–7 on either side of the blade. Stipules broadly rounded to triangular, finely lacerate, 0.5(–1) mm. Inflorescences peduncled for (0.5–)1–12(–16) cm., up to 35-flowered in ♂, 2–6-flowered in ♀, tendril 0 or 1, 1–4 cm.; sterile tendrils simple or 3-fid, 5–20 cm. Male flowers ± campanulate, including the 2–6 mm. long stipe 11–17 mm.; hypanthium cup-shaped, 1–2(–2.5) by 2–4 mm.; calyx-tube 0; sepals lanceolate, subobtuse, (7–)8–10 by 2–3 mm., punctate, margin up to 0.2 mm. laciniate; petals lanceolate or oblanceolate, obtuse, (6–)8–11 mm., 3-nerved, finely laciniate-serrulate, remotely punctate; filaments (1–)2– 3.5 mm., connate for (0–)0.5–1.5(–2) mm., inserted at the base of the hypanthium; anthers 3–6 mm., obtuse, up to 0.1 mm. apiculate; septa 0–0.3 mm. high; corona 0; disk glands 0. Female flowers ± campanulate, including the ± 0.5 mm. long stipe 5.5–8 mm.; hypanthium flattish, ±0.5 by 2–2.5(–3) mm.; calyx-tube 0; sepals oblong, ± 4–6.5 mm., entire, punctate; petals lanceolate-linear, 2–4.5 mm., 1–3-nerved, subentire, sparingly punctate or not; staminodes ± 0.5 mm.; septa 0; corona 0; disk glands 0; gynophore ± 0.5 mm., ovary ovoid, 3–4.5 mm., style 0–0.5 mm., stigmas subsessile, subreniform, laciniate-papillate, each ± 1–1.5 mm. in diameter. Fruits 1–4 per inflorescence, ovoid to ellipsoid, sometimes ± 3(–6)-angular, excluding the ± 1 mm. long gynophore 2.5–4(–4.5) by 1.7–3 cm.; pericarp woody-coriaceous, ± 0.3 mm. thick, smooth or finely pitted or granulate. Seeds 30–50 per capsule, subovoid, 3.5–5.5 mm. Fig. 5/6,p. 21.
