Climber to 8 m.; stems, grooved, glabrous.. Leaf-blade ovate-cordate in outline, acuminate, acute and apiculate, sinuate-toothed or almost entire, punctate, glabrous except for a few short scabrid hairs on the nerves beneath, 35–80 mm. long, 28–64 mm. broad; petiole 19–54 mm. long.. Dioecious.. Male flowers in rarely sessile but usually long-pedunculate subumbelliform or racemiform groups of 10–40, with up to 42 mm. long peduncles and 2–7 mm. long pedicels, sometimes the peduncles prolonged and bearing more than 1 subumbellate group of flowers; receptacle-tube 3–4 mm. long; lobes triangular, 0.5 mm. long; petals white, turning yellow when old, ovate-triangular, 2–3 mm. long, 1.5–2 mm. broad; stamens 3; filaments long.. Female flowers solitary or 2–10 in sessile or up to 33 mm. pedunculate umbelliform groups; pedicels 4–22 mm. long; ovary ellipsoid or fusiform, beaked, 3–5 mm. long, 1.5–2.5 mm, across; receptacle-tube broadly campanulate, 3–3.5 mm. long, hairy inside; lobes triangular, 0.5 mm. long; petals ± 2.5 mm. long and 1.5 mm. broad.. Fruits in sessile or up to 27 mm. pedunculate clusters of 1–4, with 7–20 mm. long pedicels, baccate, sphaeroid, apiculate, 7–9 mm. long, 5–7 mm. across, scrobiculate when dry.. Seeds ovate in outline, smooth, narrowly bordered, compressed, ± 4 × 2.5 × 0.5 mm.
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