Branchlets glabrous or sparsely and minutely puberulent. Leaves coriaceous; petiole 0.8-2.8 cm long; blade obovate to elliptic, 3-26 by 0.9-11.2 cm, 1.6-2.6 times as long as wide, apex acuminate to caudate, base weakly cordate to obtuse, 7-13 pairs of secondary veins, prominent beneath; glabrous or, more rarely, with hairs on midrib beneath and in vein axils or sparsely all over beneath. Inflorescence of axillary and terminal cymes forming a panicle; puberulent, 9.6-29 cm long; pedicels 0.9-3.2 mm long. Sepals ovate to oblong, often imbricate and reflexed, 0.6-2.1 by 0.5-1.2 mm, 1-2.1 times as long as wide, apex obtuse to weakly retuse, puberulent, colleter absent. Corolla white; lobes valvate in bud; bud ovoid, open corolla urceolate to campanulate; tube 0.8-1.5 mm long, 1-2 times as long as lobes; lobes triangular, 0.5-1 by 0.5-0.7 mm; puberulent outside, sparsely puberulent inside. Stamens inserted at 0.2-0.3 mm from corolla base which is 0.1-0.2 of tube length; filament 0.2-0.5 mm long; anthers 0.9-1.3 by 0.2-0.4 mm, 2.8-4.3 times as long as wide. Disk 5-crenate; 0.2-0.4 mm long. Ovaries 0.3-0.5 mm long; style and style head 0.7-1.9 mm long. Fruit dagger-shaped, tapering, rarely stipitate, glabrous, rarely puberulent, 4.5-11 by 0.7-2 cm. Seeds: grain 10-17 by 3-5 mm; coma 3.4-5.4 cm long.
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An evergreen climbing shrub. The leaves are papery and narrowly oval. They are 10-14 cm long. The flowers are in panicles in the axils of leaves and at the ends of branches. The fruit are curved follicles.