Objective: To investigate the species and the distribution of Bupleurum genus in northwest of Hubei province and provide basis for the standardization planting of Bupleurum in the region.
Methods: Investigated and collected specimens on the spot, com- pared them with literatures and specimen collected before.
Results: The main species of Bupleurum plants was B. marginatum, only very few of them was B. scorzonerifolium, no B. chinense was found in northwest of Hubei province.
Conclusion: B. marginatum is the mainstream species of Bupleurum plants and the roots of B. marginatum are the actual source of commodity with the name of "Beichaihu (the roots of B. chinense)" in northwest of Hubei province.
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