Zhong G Y, Zhou H R
Zhongguo Zhong Yao Za Zhi. 1989 Aug;14(8):453-5, 508.
12 species and one new species of Herba Epimedii from Sichuan were investigated and identified by taxonomical study, and a key to these identified species is presented. About 30 samples deriving from 8 species of this genus were identified by pharmacognostical study.