Climbing shrubs, large, deciduous. Branchlets glabrous, lenticels very conspicuous; pith pale brown, solid. Petiole 3-4.5 cm, glabrous; leaf blade abaxially green, adaxially dark green, oblong-suborbicular to rhombic-elliptic, 7-11 × 4-7.5 cm, thinly leathery, glabrous, veins conspicuous abaxially, lateral veins 6 or 7 pairs, reticulate veins dense and conspicuous with distinct and raised parallel cross-bars, base cuneate to rounded, margin serrate to coarsely serrate toward apex, apex cuspidate to shortly acuminate. Flowers unknown. Young fruit 2-6 in axils of leaves, nearly fasciculate; peduncle inconspicuous to 2 mm; fruiting pedicel 1.2-1.4 cm. Fruit blackish green, ovoid to oblong-cylindric, 1.5-2 cm, glabrous, lenticels brownish, orbicular, conspicuous. Seeds ca. 2.5 mm. Fl. unknown, fr. Sep-Nov.
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