What are the places of origin of yanhusuo?

The producing areas of Rhizoma Corydalis are mainly located in Anhui, Jiangsu, Zhejiang, Hubei, Henan (Tanghe, Xinyang), and introduced and cultivated in some areas (Shaanxi, Gansu, Sichuan, Yunnan and Beijing). Flowering in summer, tuber is a famous traditional Chinese medicine, which contains more than 20 kinds of alkaloids, which are used for relieving pain, promoting blood circulation and dispersing blood stasis, falling injury and so on.

Yanhusuo Xi warm and humid climate, mainly growing in hilly grasslands.