Tree 20-38 m by 20-60 cm, buttresses sometimes present. Branchlets c. cm diam., glabrescent; pith with many peripherally arranged small vascular strands and often with a central cavity. Stipules none. Leaves 1-2(-4)-jugate, glabrescent. Leaflets ovate to elliptic, rarely oblong, 5-12.5 by 2.25-1 cm, rigid, (sub)-glabrous; base rounded (to broadly cuneate); margin entire; apex shortly blunt-to acuteacuminate; nerves 7-14 pairs (angle 70-80°), faintly curved, not distinctly arching, not to distinctly looped and joined. Inflorescences terminal, paniculate, 8-15 cm long, densely tomentose, main branches up to 4 cm, racemose, with 10-15 flowers. Male inflorescences with up to 10 cm long lower branches, these as well as the main axis laxly set with subsessile glomerules of flowers. Bracts subulate. Flowers subsessile, densely tomentose, buds 7 mm long. Male flowers 3-4 mm long pedicelled.Petals distinctly unguiculate, apex incrassate-inflexed. Stamens free, glabrous. Disk adnate to the slightly concave receptacle, free rim 1 mm high, 6-lobed, the whole disk except for the outer base of the rim long-pilose. Disk in male flowers cushion-shaped, c. 1 mm high, densely haired, without rudimentary pistil. Pistil densely pubescent. Infructescences c. 7 cm long, with 1 fruit; calyx flat, 3-lobed, c. 2 cm diam. Fruits ellipsoid, circular to rounded-triangular in cross-section, 5-7 by 2-3 cm, glabrous; pyrene truncate-triangular in cross-section with hollow sides, smooth or with a faint median rib on the lids, acutely angular and acute at both ends; lids 3-4 mm thick. Seeds 1(-2); sterile cells moderately reduced.
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