Climbers woody, dioecious. Stems rooting at nodes, ridged, sparsely pubescent when young. Petiole 1-1.5 cm, sometimes pubescent, sheathed at base only; leaf blade ovate or long ovate, 6-12 × 3.5-7 cm, ± leathery, abaxially usually pubescent on veins, adaxially glabrous, with uniformly scattered raised white glands, base cordate to rounded, ± symmetric, apex acute or obtuse; veins 5, apical pair arising up to 1.5 cm above base, others basal; reticulate veins conspicuous. Spikes leaf-opposed. Male spikes yellow, ascending, 3-5.5(-12) cm × ca. 2.5 mm; peduncle 0.6-1.5 cm; rachis hispidulous; bracts yellow, orbicular, ca. 1 mm wide, peltate, margin irregular, abaxially roughly white pubescent, ± sessile. Stamens 2 or 3; filaments short. Female spikes shorter than leaf blades; peduncle ca. as long as petioles; rachis and bracts as in male spikes. Ovary globose, distinct; stigmas 3 or 4, linear, pubescent. Drupe brownish yellow, globose, 3-4 mm in diam. Fl. May-Aug.
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