Tree 5-7 m by 10-15 cm. Branchlets c. 0.5 cm thick, glabrescent; pith with a peripheral cylinder of vascular strands appressed to the wood. Stipules subpersistent, inserted on the base of the petiole (up to 2.5 mm high), rounded-ovate, 1-2 by 1-1¾ cm, margin minutely crenulate. Leaves 3-5-jugate. Leaflets oblong-lanceolate, 7-17 by 4-7 cm, chartaceous, subglabrous; base broadly cuneate; margin serrate or dentate; apex abruptly rather long and slender acute-acuminate; nerves 9-13 pairs (angle 60-70°), slightly curved, distinctly arching close to the margin. Inflorescences (female unknown) terminal, laxly paniculate, 15-30 cm long, glabrescent. Flowers (male) 1.25 cm, outside pulverulent. Calyx 3-5 mm high. Stamens glabrous, slightly connate at the base, sometimes adnate to the disk. Disk cupular, thick and fleshy, 1-2 mm high, glabrous, without pistil. Infructescences terminal, paniculate, 5.5 cm, densely tomentose, with 3 fruits; calyx funnel-shaped, triangular, 7 by 11 mm. Fruits spindle-shaped, ± round in cross-section, 7 by 2.25 cm, glabrous; pyrene smooth, rounded triangular in cross-section, the lids intruded, lids c. 3-4 mm thick. Seeds 2, sterile cell moderately reduced.
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