Climber with fairly slender stems, glabrous except for a few gland-tipped hairs 0.5–1 mm. long near the nodes; tendrils present.. Leaves 3-foliolate; leaflets elliptic, (5–)8–13.5 cm. long, (1.7–)4.5–7 cm. wide, acuminate at the apex, cuneate at the base, remotely dentate with upwardly directed small teeth, glabrous but surface minutely blistered in the dry state and with numerous minute white cystoliths; petiole 5–7.5 cm. long (Mildbraed gives 6–2); petiolules (± 0–)0.5–2 cm. long, the median the longest, together with petiole with gland-tipped bristly hairs densest at junction with stem and each other; stipules at least 5 mm. long but inadequately preserved.. Inflorescences 6–8 cm. wide; peduncle 5–7 cm. long, together with axes with very sparse gland-tipped hairs; pedicels 2–6 mm. long, puberulous with characteristic short hairs but not glandular.. Buds narrowly cylindrical, 2 mm. long, constricted at or above the middle, glabrous or puberulous.. Calyx 1.2 mm. wide, puberulous, entire.. Fruits not seen; juvenile fruits described as glabrous.
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