Tree up to 30(-40) m high and 80(-100) cm in diam.; buttresses up to 5 m high, extending outward 1-2 m. Leaves glabrous, petiole 8-20 mm, petiolules very short, 2-5 mm. Leaflets chartaceous or subcoriaceous, ovate to ovate-oblong, elliptic or ovate to lanceolate, 7-20 by 3.5-7.5 cm; base obtuse or rounded; apex acuminate; lateral nerves 4-7 per side; veins loosely reticulate, obscure or visible on both surfaces. Inflorescences with rachis or branches up to c. 7 cm long, sparsely puberulous; bracts and bracteoles minute, narrowly triangular, acute, deciduous. Calyx lobes oblong or ovate, 3.5 by 1.5-2 mm, glabrous except sparsely shortly hairy on the margin. Corolla lobes subequally obovate, 4-6 by 2-3 mm, glabrous, distinctly pinnately hairy. Stamens: filaments c. 2 mm long. Pistil 5-6 mm long; stipe distinct, 2 mm; ovary subglobose or broadly ellipsoid, 1-1.5 mm long; style 2-2.5 mm, stigma indistinct. Pods often only one developed from an inflorescence, on a thickened woody stalk (c. 1 cm in diam.), c. 6 cm in diam., with a roughish, somewhat scurfy-granular brown surface, glabrous; pericarp rather hard and thick (4-5 mm). Seed one in each pod, subglobose, c. 4 cm in diam.
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