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[Microscopic identification study of western herbs. Part I: Three Echinacea-species roots]
Qin Li1, Chu Chu, Zhenfeng Tan
1School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, China.
Objective:
To make microscopic identification research of three Echinacea-species roots recorded in the United States Pharmacopeia.
Method:
The root transverse section and powder of E. angustifolia, E. pallida, and E. purpurea were observed. The main microscopic features were photographed.
Result:
The main microscopic features of transverse section and powder in three Echinacea-species roots are basically similar, except for some diagnostic differences. The results provide reliable reference for the authentication of raw materials of western herbal studies.
