Fagus lucida var. opienica Y. T. Chang; F. nayonica Y. T. Chang.

Trees to 25 m tall. Winter buds ca. 1.5 cm. Petiole 0.6-2 cm; leaf blade ovate to elliptic-ovate, 5-11 cm, lustrous green and glabrous except for silky pubescence abaxially on midvein, base broadly cuneate to rounded, margin slightly sinuate, apex acute to shortly acuminate; secondary veins 8-12 on each side of midvein, ending in minute teeth. Peduncle 0.5-1.5 cm, glabrous. Cupule 1-1.5 cm; bracts tuberculate, closely appressed, triangular mucronate, 1-2 mm, rarely apical ones slightly ascending. Nut slightly exserted, with minute or hardly evident wings near apex. Fl. Apr-May, fr. Sep-Oct.

* Mixed mesophytic forests on mountain slopes; 800-2000 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Zhejiang