There is also a classification, there are four main types: one is Fritillaria cirrhosa, which is mainly produced in Yunnan and Sichuan; Followed by Fritillaria thunbergii, mainly produced in Xiangshan, Zhejiang and other places; The third species is Fritillaria Xinjiang, which is mainly produced in Tianshan Mountains. The fourth kind is Fritillaria, which is produced in Henan and Shaanxi provinces. Among them, Fritillaria cirrhosa is divided into three types: loose shell, green shell and furnace shell according to the experience of drug farmers and traditional Chinese medicine.

According to the common frequency, there are two kinds mentioned above: Fritillaria cirrhosa and Fritillaria thunbergii. It is generally believed that Fritillaria cirrhosa is better than Fritillaria Zhejiang, so it is wrong to make such an understanding. In fact, Fritillaria cirrhosa is partial, and deficiency cough is appropriate. Fritillaria thunbergii has stronger effect of clearing heat and resolving phlegm than Fritillaria thunbergii. So there are differences between the two drugs, but each has its own strengths. Like they said upstairs, that's good.