Buttressed tree, 17-28 m by 20-40(-70) cm. Branchlets 0.5-0.75 cm thick, glabrescent; pith with many vascular strands, which are sometimes arranged in two concentric cylinders. Stipules none. Leaves (3-)5-8-jugate, glabrous. Leaflets lanceolate to oblong, 9-24 by 2-9.25 cm, herbaceous to coriaceous; base broadly cuneate to slightly cordate; margin entire; apex acute, rather abruptly, short (c. 1 cm) and slenderly blunt-acuminate; nerves 8-15 pairs (angle 60-70°), little curved, rarely distinctly arching close to the margin; reticulations very slender and rather dense. Inflorescences axillary, glabrescent, slender, ♂ ones narrowly paniculate, 10-50 cm, main branches c. 2(-10) cm, patent, paniculate, 3-11-flowered; female ones mostly racemose, 4-10 cm. Flowers (nearly) glabrous, ♂ ones 1 cm long, female ones 5-6 mm. Calyx 3-5 mm high. Stamens glabrous, in ♂ flowers connate for 1-2 mm, in female ones very slightly connate. Disk in ♂ flowers thick and ovoid to club-shaped, 4 mm high, more or less deeply (3-)6-lobed, with a central canal, pubescent, inner side and apex with long, erect hairs; in female flowers cupular, ¾ mm high, 6-undulate, pubescent outside and long-fimbriate. Pistil densely pubescent except at the base; in ♂ flowers none. Infructescences in the more coarse specimens shoit and dense, 5-8 cm long, with 2-5 rather large, fertile fruits; in more slender specimens up to 25 cm long, slender, fruits smaller and often some of them sterile; calyx c. 1 mm diam., flat, 3-lobed, lobes reflexed. Fruits ovoid, acute, specially at the apex, round or slightly trigonous in cross-section, 2-2½-4 by 1.25-2 cm, glabrous or slightly pubescent at the top; lids conspicuous, faintly keeled, c. 2.5 mm thick. Seeds 3.
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A tree. It grows 20 m tall. The trunk can be 20-40 cm across.
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