Trees 7--13 m tall. Branchlets red-brown, glabrous. Petiole 6--10 mm; leaf blade elliptic-lanceolate, oblong, or oblong-elliptic, 7--10 X 2.5--3.5 cm, membranous to papery, glabrous, base cuneate, margin serrulate, apex acuminate, secondary veins 6--9 pairs, tertiary veins reticulate. Inflorescences axillary, racemes or panicles. Calyx campanulate, ca. 4 mm; teeth 5, deltoid. Corolla lobes elliptic to elliptic-oblong, ca. 1.4 X 5 mm, apex obtuse. Fruit red-brown, cylindrical, terete, 7.5--11 X 2.8--6 cm, often with brown rounded small spots when dried, 6--8-ribbed, smooth between ribs, exocarp ca. 1 mm thick, mesocarp 8--10 mm thick, endocarp hard woody. Seeds 2 or 3, ca. 2 cm. Fr. Aug-Oct.
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