Climber to 4 m. Underground parts unknown. Indumentum absent. Stems 1– 3 mm in diam. towards base, twining to the right, annual, unarmed, terete with shallow longitudinal ridges. Leaves simple, alternate, blade ovate to narrowly ovate, chartaceous, 5–7-veined, margins entire, base cordate, apex acute to acuminate; petioles 5–10 mm long; cataphylls 2–3.5 by 3–3.6 mm, ovate, chartaceous; bulbils and lateral nodal organs absent. Inflorescences spicate, tepals inserted on a small discoid torus, erect, free, fleshy in texture with inner whorl tepal slightly thicker than outer; male inflorescences simple or rarely compound, compound inflorescences 1(–2) per axil, simple/partial inflorescences 1–2 per axil, peduncles 0.8–1.2 mm long, axes 0.7–2.6 cm long; female inflorescences not more than 8 cm long, even in fruit. Male flowers ± patent to inflorescence axis, outer tepals 1.5–1.9 by 0.6–1.1 mm, narrowly ovate to lanceolate or narrowly so, inner tepals 1.4–1.8 by 0.4–0.5 mm, narrowly elliptic to elliptic-oblong or lanceolate, apex acute to obtuse; stamens 6. Capsules 18–21 by 25–30 mm, not more than 5 per infructescence. Seeds 3.5–5.5 by 4.5–6 mm, ovoid-lenticular; wings 14–16 by 13–14 mm, extending all around seed margin.