However, as influenced by climate and soil condition, the content of the active components of Echinacea purpurea is too low and it is also difficult to ensure their medicine quality.

• 我国近年来在上海、北京、南京等地有所引种,虽引种成功,但受气候、土壤等条件的影响,其紫锥菊生物活性成分含量极低,药用品质也难以保证。