Leymus and Cyrtomium, are native to which mutual location?
Cyrtomium Cyrtomium is a genus of about 15-20 species of ferns in the family Dryopteridaceae, native to Asia, Africa (including Madagascar), and the Pacific Ocean islands (Hawaii). It is very closely related to the genus "Polystichum", with recent research suggesting it should be included within it (Little & Barrington).
Cyathula officinalis Cyathula officinalis (English common names: Cyathula root, Radix Cyathula, Ox Knee, Chinese: Chuan Niu Xi), is a species of "Cyathula" native to the China (Guizhou, Hebei, Shanxi, Sichuan, Yunnan, Zhejiang) and Nepal. Its IPNI number is 60176-1.