Climbers glabrous except for rachis, dioecious. Stems black when dry, slender, finely striated, tuberculate. Petiole 5-10 mm; leaf blade elliptic, rarely ovate, 4-6 × 2-2.5 cm, papery, drying black, densely glandular, base shortly tapered, sometimes rounded, ± symmetric, apex acute; veins 5, apical pair arising ca. 5 mm above base, reaching leaf apex, others basal; reticulate veins inconspicuous. Spikes leaf-opposed. Male spike not seen. Female spikes 6-6.5 cm in fruit; peduncle 1-1.2 cm; rachis pubescent; bracts oblong, adnate to rachis, ca. 2 × 0.8 mm, margin and apex free. Ovary ovoid, distinct; stigmas 3, linear, reflexed. Drupe obovoid, 4-5 × ca. 3 mm, base tapered into a thick stalk ca. 2 mm. Fr. Oct.
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