Trees, up to 25 m tall; branchlets purplish brown, glabrous. Petiole slender, 2.5-5.5 cm, grooved apically, inflated basally; leaf blade oblong-lanceolate to elliptic-lanceolate, 15-26 × 4-6 cm, leathery, glabrous, base cuneate to broadly cuneate, margin entire, undulate, apex acuminate or caudate-acuminate, lateral veins more than 25 pairs, prominent on both sides. Inflorescence paniculate, terminal, ca. 30 cm, with slender primary branches. Pedicels ca. 1.5 mm, sparsely pubescent to glabrous. Sepals ovate, 2-2.5 mm, sparsely pubescent, acute. Petals with 3 or 4 prominent veins adaxially, linear-oblong, ca. 4.5 × 1.5 mm. Fertile stamen 1, longer than petals; staminodes 2, very short, with knoblike sterile anthers. Disk 5-lobed. Ovary globose; style subterminal, 3 × ovary in length. Drupe oblong to subreniform, yellowish green at maturity, 5-6 × ca. 4 cm; mesocarp thin; endocarp large, subglobose. Fl. Mar, fr. Apr-May.