Woody climber, up to 9 m. Branchlets slender, striate, with a broad line of dilutely ferrugineous tomentum on one side, changing sides at the nodes; tendrils up to 15 cm. Leaves ovate-elliptic, sometimes subobovate, apex abruptly acuminate for 0.5-1.5 cm, acute, base generally slightly cordate, a little inequilateral, thin-coriaceous, glabrous and shining above, the hairy midrib excepted, all over the undersurface covered with rather sparse obliquely or patently spreading hairs, soft to the touch, 5-12 by 3-6.5 cm, midrib and nerves slightly impressed above, boldly prominent beneath, nerves 4-5 curved high-ascending and looping pairs, reticulation of veins and veinlets finely raised above, strongly so beneath; petiole densely hairy, 1-1.5 mm. Cymes lax, the ♂ many-flowered and usually exceeding the leaves in length, the ♀ ones few-flowered and generally shorter, ± patently soft-rusty-pubescent in all outer parts. Pedicels very slender in the ♂, thicker and swollen distally only in the ♀. ♂ Flowers: Calyx cup-shaped, 1 mm, 4-lobed to ½-⅔. Petals 4, ovate-acuminate, a little fleshy, densely hairy outside, glabrous inside, 0.8 mm. Stamens 4, subsessile; anther cells subcordate, 0.2 mm. Rudiment of ovary minute, glabrous. ♀ Flowers: Calyx as in ♂ flowers. Petals 4, subovate-oblong, united at the very base, tip acute, hairy outside as is the calyx, reflexed, 2-2.5 mm. Staminodes 0. Ovary thick-cylindrical or barrel-shaped, all over densely appressedly hairy, 1.5 mm; stigma discoid, deeply cut on one side, margin hardly crenulated. Drupe ellipsoid, compressed, base narrowed, ferrugineous-velvety, 2.5-3 by 1.5 by 1 cm, on stoutish pedicel, 5-8 mm; endocarp bony, coarsely furrowed outside.
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