Stems glabrous. Leaves with glabrous (or subglabrous) petioles 5-18 cm; lamina cordiform to broadly cordiform or broadly triangular-ovate, base deeply to shallowly cordate or truncate, apex acuminate, 9—15(—25) by 7-13(-20) cm, margin entire, both surfaces glabrous (or sparsely hispidulous below). Inflorescence axillary, a panicle of cymes, slender, 5-18 cm, glabrous. Male flowers on pedicels 1-2 mm: sepals subequal, elliptic to oblanceolate, 2.25-3 mm long, glabrous, petals elliptic, 1 mm long; synandrium 1.5 mm long with apical conical appendage, anthers with transverse slits. Female flowers not seen. Drupes whitish, drying irregularly rugose, 8-9 mm long, glabrous, on glabrous pedicels 4-5 mm; endocarp broadly elliptic to subrotund in outline, dorsally densely covered with slender patent spines, apical keel moderately or little developed, ventral cavity covered by a thin wall with the central aperture bordered by a radially fimbriate incurved margin or by flattened incurved spines.
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