Where are the places of origin of Corydalis yanhusuo?

The places of origin of Corydalis yanhusuo are mainly located in Anhui, Jiangsu, Zhejiang, Hubei, and Henan (Tanghe, Xinyang), and it has been introduced and cultivated in some areas (Shaanxi, Gansu, Sichuan, Yunnan, and Beijing). It blooms in summer, and its tubers are a well-known commonly used traditional Chinese medicine, containing more than 20 kinds of alkaloids, used for promoting qi and relieving pain, activating blood and dispersing stasis, and traumatic injuries.

Corydalis yanhusuo prefers a warm and humid climate and mainly grows in hilly grasslands.