Description from Flora of China
Quercus delavayi Franchet, J. Bot. (Morot) 13: 158. 1899.
Trees to 20 m tall; branchlets, petioles, young leaf blades densely, mature leaf blades abaxially, and inflorescences pale orangish brown stellate tomentose. Petiole 1-2.5 cm; leaf blade oblong to ovate-elliptic, 8-12 × 2-4.5 cm, subleathery, adaxially glabrescent, base broadly cuneate to subrounded, margin apical 1/2 serrate, apex acuminate to shortly acuminate; midvein abaxially prominent and adaxially impressed; secondary veins 10-14 on each side of midvein; tertiary veins abaxially inconspicuous. Female inflorescences axillary, solitary, ca. 4 cm, cupules 2 or 3. Cupule shallowly bowl-shaped, 5-8(-10) mm × 1-1.5(-1.9) cm, enclosing ca. 1/2 of nut, outside pale orangish brown tomentose, inside pale orangish brown sericeous, wall ca. 2 mm thick; bracts in 6 or 7 rings, margin shallowly denticulate. Nut ellipsoid to ovoid, ca. 1.8 × 1-1.5 cm, tomentose, glabrescent, apically indented; scar 6-8 mm in diam., convex; stylopodium persistent. Fl. Apr-May, fr. Sep-Oct of following year.
* Lauraceous or mixed Quercus and Pinus forests in mountains; 1000-2800 m. Guangxi, Guizhou, Hubei, Sichuan, Yunnan