Annual herbaceous or slightly woody climber, 0.3–3 mm. long; stems deeply grooved, straw-coloured with grooves green. Leaves pale green, stipulate, thin, biternate, triangular in outline, (3–)5–10 cm. long, 5–12 cm. wide, composed of 3 ± equal divisions each of a petiolule and 3 leaflets or deeply trifid leaflet; petiole 0.4–6 cm. long, pubescent; first order petiolules 0.5–3 cm. long, subequal or often the lateral ones somewhat longer than median one; leaflets sessile or with short secondary petiolules, sparsely pubescent when young, later glabrescent except for main nerves, the terminal one ovate, 1.5–6.5 cm. long, 0.8–2.5 cm. wide, acute to acuminate or rarely rounded at the apex, apiculate, attenuate to rounded at the base, serrate to deeply dentate or pinnatipartite, rarely ± entire. Inflorescences corymbose, the rhachis bearing 3–4, 2–5-flowered raceme-like thyrses; peduncle below tendrils 1.5–10.5 cm. long, the part above 0.2–1.2 cm. long; secondary peduncles 0.3–1.7 cm. long; pedicels (0–)1–2 mm. long, lengthening to 5 mm. in fruit. Flowers said not to be scented; sepals yellow-green, unequal, the outer ± round, 1 mm. diameter, the inner larger and ovate, 2–3 mm. long, 1–2 mm. wide; petals white, cream, greenish or yellow, elliptic to obovate, 2–3 mm. long; appendages yellow at tip, hairy; disk of 2 curved elements 1 mm. long. Stamens 8; filaments ± 2 mm. long, pilose. Ovary ± 2 mm. diameter; style 0.5 mm. long, with yellow stigma equalling it. Fruit yellow-green turning greenish brown to reddish or dark brown, obtetrahedral, 1–3.5 cm. long, 1.8–4 cm. wide, dehiscing into 3 segments, at first densely puberulous or pubescent. Seeds black, globose, 5 mm. diameter, with a reniform or crescentic hilar area, 3–4 mm. wide. Fig. 25/1–4.
