Dioecious, tendriled vines; stems densely pubescent, at least when young, rarely glabrate. Leaves ovate, 7-10 cm long, 5-8 cm wide, the apex acute or acuminate, the base cordate, the margin entire, membranaceous to subcharta-ceous, the upper surface minutely white pustulate, slightly scabrous, both the surfaces pubescent at least on the veins; petioles slender, 2-5 cm long, densely pubescent to glabrate; tendrils slender, 2-branched at the apex. Inflorescences axillary, paniculate, usually densely so, trichomes glandular tipped and eglandu-lar, many flowered; pedicels capillaceous, to 1 mm long. Staminate flowers greenish white; sepals triangular, ca. 0.5 mm long, villous on the outer surface; corolla linear lanceolate, ca. 1.5 mm long, spreading, the apex slightly incurved, papillose pubescent on both the surfaces, the margin fimbriociliate; stamens short; anthers quadrate or oblong, the hypanthium disc slightly 5-lobate. Pistil-late flowers with the calyx and the corolla as in the staminate flowers; ovary ovoid, ca. 1.5 mm in diameter, pubescent with glandular and eglandular tri-chomes, the style capillaceous, divergent at the apex. Fruits black, smooth, puberulent or glabrate, 5-7 mm in diameter; pedicel 4-10 mm long; seed brown, deeply verrucose, ca. 4-5 mm in diameter.
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