Vine to c. 8 m; stems stout, rusty tomentose, often sparsely prickly. Leaves opposite, elliptic, acute or bluntly cuspidate, tapering or slightly cordate at base; lamina 9-18 cm long, 4-6 cm wide; petiole 5-8 mm long, twisted, densely tomentose. Inflorescence tomentose, axillary; pedicels absent or 1-2 mm long. Flowers numerous, 10-15 mm diam., white to pale cream. Sepals 5-7 mm long, 3 mm wide. Petals 6-8 mm long, 3-4 mm wide. Stamens 5-6 mm long; filaments 1-2 mm long; anthers 4-5 mm long. Ovary ovoid, 3-4 mm long, densely pubescent, pale rusty; style 0.5-1 mm long. Berry 6-15 mm diam., black. Seeds 1 to few, ovoid, 5-10 mm long, yellow-brown.
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