Coarse vines. Stems glabrous when mature, juvenile stems puberulent in lines. Leaves ovate, apically rounded and abruptly short acuminate, basally cordate, glabrous above, densely white villous beneath, 11-17 cm long and 10-13 cm wide; petioles 2.5-4 cm long. Inflorescences umbelliform, many-flowered, densely short villous throughout; peduncles 1-2 cm long; pedicels 4-6 mm long. Flowers greenish; calyx lobes ovate, densely villous outside, glabrous inside, 3-4 mm long and 2-3 mm wide; corolla campanulate, glabrous throughout except for patches of retrorse hairs inside the tube, lobes somewhat fleshy, lanceolate-obtuse, ca. 5 mm long and 2 mm wide, the margins thin and papery with in-conspicuous cilia; corona of separate, carnose, deltoid segments; gynostegium 4-5 mm high; stigma head with a conical bifurcate apical appendage. Fruit unknown.
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