Description from Flora of China
Trees; branchlets pubescent. Petiole 1-4 cm, flattened apically, inflated basally; leaf blade oblong to lanceolate, 10-19 × 2.5-5 cm, leathery, deep green adaxially, light green abaxially, glabrous, base cuneate or broadly cuneate, margin entire, undulate, apex acute to shortly acuminate, lateral veins 18-22 pairs, midrib prominent on both sides. Inflorescence paniculate, terminal, up to 14 cm, shortly pedunculate, minutely pubescent; floral subtending bracts ca. 1.5 mm, acute. Sepals 5, ca. 2 × 1.5 mm, sparsely tomentose-pilose. Petals oblong or oblong-lanceolate, ca. 2.7 × 1.5 mm, with 3 prominent veins adaxially. Fertile stamen 1, with ca. 11 mm filament and ca. 0.7 mm ovate anther; staminodes absent. Disk 5-lobed. Ovary ca. 0.7 mm; style ca. 1.5 mm. Drupe elliptic-reniform, 3.5-5 × ca. 2.5 cm; mesocarp thin; endocarp reniform, slightly compressed, 2.8-3.5 × 1.8-2 cm. Fl. Mar-Apr, fr. May-Jul.
Lowland forests; 600-700 m. S Yunnan (Jinghong) [Thailand].