Tree, 20-28 m by 20-30 cm. Branchlets 3-4 mm thick, glabrescent; pith with a peripheral cylinder of some large to many small vascular strands, in the latter case appressed to the wood. Stipules absent. Leaves 2-5-jugate, glabrous. Leaflets elliptic-lanceolate, 5.5-15 by 2.5-5 cm, chartaceous; base cuneate; margin entire; apex acute, rather abruptly, long and slender (5-15 by l.5-2 mm) blunt-acuminate; nerves 7-12 pairs (angle 55-65°), curved, not arching except in the apical part; reticulations lax. Inflorescences axillary, glabrous, slender, ♂ ones narrowly paniculate, c. 20 cm long, main branches patent, up to 1.5 cm, 2-3-flowered; female ones racemose, 4-8 cm long, with few flowers only. Flowers nearly glabrous, ♂ ones 4-5, 9 7-8 mm long. Calyx c. 3 mm long. Stamens in ♂ flowers connate for 1 mm, filaments pilose, anthers acute-acuminate; in female flowers free, totally pilose. Disk cylindrical in ♂ flowers, 2 mm high, densely pubescent, with or without a central canal; in female flowers cupular, 6-lobed, 1 mm high, fimbriate. Pistil densely pilose, in ♂ flowers absent. Infructescences small, with only one fruit; calyx flat with reflexed lobes, 7 mm diam. Fruits shortly ovoid, trigonous in cross-section, c. 3.5 by 2.5 cm; pyrene rounded-triangular in cross-section, the sides flat to slightly concave; lids thick; cells equally well developed.
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