Oncinotis glabrata Stapf ex Hiern

Climbing shrub or liana 1.2–40 m high; trunk 1.5–12 cm in diameter; bark greyish brown, with large pale brown lenticels; branchlets brownish green to grey, glabrous or rarely puberulous.. Leaves petiolate; blade elliptic to ovate (to obovate), 3.9–13 cm long, 1.5–5 cm wide, acuminate (or rounded or emarginate) at the apex, cuneate at the base, glabrous (rarely puberulous on midrib and veins), glossy, dark to medium green above, with 5–12 pairs of secondary veins forming an angle of 50–75°, tertiary venation reticulate to faintly scalariform; domatia of pits, sometimes absent, sometimes with a ciliate margin; petiole 7–24 mm long, glabrous, rarely puberulous, with 1–3 clusters of 2–3 glands on the adaxial side.. Inflorescence (2.5–)4–12.5 cm long, rusty brown-pubescent and glabrescent in all parts; bracts ovate to triangular, 1.2–1.7 mm long; pedicels 2–5 mm long.. Flowers with sepals ovate, 1.5–3.6 mm long, rusty brown-pubescent; corolla yellow; tube urceolate, 2.5–4.7 mm long; lobes triangular, 2.3–5.8 mm long, 0.9–2.5 mm wide, glabrous or puberulous outside; corona later turning white, 0.5–0.9 mm long, pubescent at the base; pistil 2.9–3.5 mm long; style 0.1–0.2 mm long; ovules 60–120.. Fruits fusiform, 9.8–30 cm long, 1.2–6.1 cm wide, exocarp 1–8 mm thick, very hard, longitudinally winged at maturity, wing undulate, 0.1–3 mm wide, puberulous to glabrescent; seeds numerous, 5–27×2–6.5 mm; coma 10–75 mm long.

Rainforest, swamp forest, secondary deciduous forest and gallery forest. It grows on clay and rocky outcrops, at elevations from sea-level up to 2,200 metres.

Can be grown by seedlings.