Generally, dried lotus root is used as medicine, also known as lotus root, which belongs to the family Nymphaeaceae. Lotus root originated in India, and was later introduced to China. It has been cultivated for more than 3,000 years. Lotus root is cultivated in southern provinces of China, and there are two kinds of lotus root, namely seven-hole lotus root and nine-hole lotus root. Seven-hole lotus root is widely cultivated in Jiangsu and Zhejiang provinces, which has excellent texture.