Strong climber or creeper. Leaves: petioles 8-10 cm, petiolules 0.8-2 cm, slightly or densely hairy; leaflets chartaceous, ovate, 5-15 by 3.5-8 cm, apex acute, base rounded or cordate, upper surface glabrous or sparsely hairy in many gradations, and often with short hairs on the nerves, the lower surface hairy in many gradations: onh sparsely hairy, especially on and near the nerves; domatia present; nerves curved, c. 6 pairs, at angles of 60-80° with midrib. Thyrses velutinous. Flower buds ovoid, 4.5-5 mm long. Bracteoles c. 2 by 1 mm. Perianth in anthesis with tepals pinkish white or pale greenish with purplish midnerve; outer and inner tepals unequal, outer surface densely hairy or (somewhat) hairy towards the tips only, acute, outer tepals 6.5-9 by 1.8-2 mm, inner ones 5-7 by 0.5-1.8 mm, at the base c. 0.5 mm wide. Filaments filiform, somewhat papillose, 6-6.5 mm long; staminal appendages inflated, spathe-like with an entire rim, dorsally cleft, including the 0.5-1 mm long stipe 2-3 mm long; interstami-nal glands present. Fruits cinnamon-coloured when dry, 2-winged and with 2 ridges, often with short hairs; nut 3-4 cm long; wings lingulate, 3.5-4 cm long, the ridge-c. 0.2 cm.
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