Vines woody. Branchlets terete, pubescent. Leaves opposite, simple; petiole 5-10 mm, usually twisted, pubescent; leaf blade elliptic to lanceolate, rarely obovate, 4.5-19 × 2-7 cm, papery, glabrous adaxially except for sparsely pubescent midrib, pubescent then glabrescent abaxially, often tufted hairy in vein axils abaxially, base cuneate, blunt, or subcordate, apex acute to acuminate, rarely blunt; primary veins 4-10 on each side of midrib. Umbellate cymes terminal or axillary, 1-5-flowered; bracts linear, 2-5 mm. Pedicel 0.8-1.8 cm, thickened upward, glabrous or pubescent. Calyx pubescent, shedding in fruit; tube ca. 2 mm; lobes 5-8, linear, 4-5 mm. Corolla white, salverform; tube ca. 1.4 cm; lobes 6-8, lanceolate, 1-1.2 cm × ca. 3 mm. Berry blue-black, subglobose, ca. 1.7 × 1.5 cm. Fl. Apr, fr. Oct.
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