[The species basis of Berchemia lineata and its drug commodity].

Objective: To investigate the original plant, distribution and efficacy of Radix Seu Stem Berchemiae (Tie Bao Jin) in Zhuang Region of Guangxi and southwest China.

Methods: The original plants of Tie Bao Jin were identified by methods of commodity investigation, specimen collection, literature reference and specimens identification.

Result: The clinical commonly used as Tie Bao Jin original plant in Zhuang Region of Guangxi were identified as the stem and root of Berchemia lineata (L.) DC, Berchemia polyphylla Wall. ex Laws., Berchemia polyphylla Wall. ex Lawson var. leioclada (Hand. -Mazz. ) Hand. -Mazz. and Berchemia floribunda (Wall.) Brongn.

Conclusion: Actually, the stem and root of the four plants have been used as Tie Bao Jin in southwest China. And their plant resource include their identification, pharmacodynamics action and the clinical difference still need further research.