Lianas to 2 m. Branchlets tawny-brown, lenticellate, slightly pubescent. Petiole 5-10 mm; leaf blade oblong or elliptic, 3-5.5 × 1.5-2.5 cm, papery, glabrous, base rounded or broadly cuneate, apex rounded, apiculate. Cymes apparently axillary, subsessile, congested, ca. 2 cm wide, to 7-flowered, glabrous. Pedicel 5-10 mm. Sepals ovate, ca. 2 × 1 mm, basal glands 5-10. Corolla yellow-green; tube 6-9 mm; lobes ovate, ca. 7 × 5 mm, obtuse. Corona lobes ovate, apex apiculate. Pollen carriers short cylindric, erect. Ovaries glabrous. Follicles dark brown, 8-12 cm × 5-6 mm. Seeds tawny-brown, oblong, ca. 7 × 2 mm; coma ca. 2 cm. Fl. Jun-Sep, fr. Sep-Jan.
Woody scrambler or liane. Leaves with petiole to 2 cm long; lamina lanceolate, narrowly elliptic to elliptic, to 12 cm long, to 8 cm wide, rounded or cuneate at base, acute, acuminate or obtuse at apex, discolorous. Inflorescence of 1–many fascicles. Flowers 11–17 mm long, 7–30 mm wide; pedicels 4–14 mm long. Corolla cream to yellow-green; tube 5–13 mm long, 1.9–4 mm diam.; lobes lanceolate to ovate, 5–20 mm long, 3.5–6 mm wide. Corona lobes subulate, 0.9–3 mm long, 1.7–3.5 mm wide, cusped or toothed. Follicles 8.5–14 cm long. Seeds narrowly oblong, 7–9 mm long.