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Climber (twiner) and scrambler. Young parts with dense, usually ± appressed brown hairs, becoming ± glabrous. Leaves opposite or in whorls of 3 or 4; lamina ovate to elliptic, 7–16 cm long, 3.5–7.5 cm wide, obtuse at base, entire margin, acute to obtuse at apex, becoming ± glabrous; petiole 3–9 mm long. Inflorescence a panicle or occasionally a simple spike, terminal and axillary. Flowers 5-merous. Calyx: receptacle 1.5–2 mm long; tube cupuliform, c. 1 mm long, 2.5 mm wide, densely sericeous; lobes narrowly triangular, c. 1 mm long, sericeous. Petals lanceolate, 1–1.2 mm long, sericeous. Staminal filaments c. 4 mm long. Disc prominent, lobed, barbate. Style c. 4 mm long. Ovules 2. Fruit narrowly ellipsoidal with 5 rigid wings, star-shaped in section, 3–4 cm long, 1–1.5 cm wide, glabrous.
A climbing shrub. It grows 15 m tall. The mature stems can be 3 cm across. The bark is flaky. The young stems twine in an anticlockwise direction. They are hairy. The leaves are opposite or usually in rings of three. They are oval and 9-13 cm long by 5-6 cm wide. The flowers have 5 petals. The fruit have 5 narrow ridges. They are 5 mm across.
