Description from Flora of China
Trees to 33 m tall. Bark brown, rough. Branchlets purplish green; lenticels yellowish, elliptic, small; winter buds axillary, ovoid, bud scales obtuse, imbricate. Leaves persistent; petiole purplish green, 2.5-9 cm; leaf blade abaxially glaucous, adaxially olive-colored, oblong, sometimes ovate or obovate, 12-15 × 5.5-8 cm, leathery, undivided to slightly lobed, 3-veined at base, base rounded, margin entire, apex caudate. Flowers unknown. Infructescence terminal, corymbose, ca. 6 cm. Fruiting pedicel 1-1.5 cm. Fruit with dense lenticels; nutlets purple brown, convex, ovoid; wing ca. 8 mm wide, ca. 2.3 cm including nutlet; wings spreading obtusely. Fl. unknown, fr. Sep.
● Dense forests, very rare; ca. 1400 m. Guizhou (Pingba).