1a. Corylus ferox var. ferox
刺榛 (原变种) ci zhen (yuan bian zhong)
Scales of buds white villous. Leaves ovate-oblong or obovate-oblong; lateral veins 10-14 on each side of midvein.
Forests on mountain slopes; 1700-3800 m. Guizhou (Fanjing Shan), SW Sichuan, NW and W Yunnan [Bhutan, ?NE India, ?N Myanmar, Nepal, Sikkim]