Trees to 20 m tall. Terminal buds naked, immature leaflets brownish black. Leaves 11-20 cm; petiole 2-4 cm, glabrous; rachis glabrous; leaflets 5, lateral ones with petiolule 1-5 mm, blade elliptic to elliptic-lanceolate, (3-)6-14 × 2-7 cm, virtually without peltate scales, abaxially glabrous except for hairs along midvein and clusters in axils of secondary veins, base oblique, obtuse or cuneate, apex obtuse or acute; terminal petiolule 5-10 mm. Male spikes ca. 14 cm; peduncle ca. 1 cm. Anthers glabrous. Nuts compressed-globose, 2-2.5 × 2-2.5 cm; husk wingless; shell without longitudinal ridges, ca. 2.5 mm thick, 4-chambered at base, lacunae present. Fl. Mar-Apr, fr. Oct.

* Forests on mountain slopes; 1000-1300 m. SW Guizhou