Eshan is the name of a traditional Chinese medicinal herb. It is the dried root of Anthriscus sylvestris (L.) Hoffm., a plant belonging to the genus Anthriscus in the Apiaceae family.It is distributed in Liaoning, Hebei, Inner Mongolia, Gansu, Xinjiang, Shanxi, Shaanxi, Jiangsu, Anhui, Zhejiang, Jiangxi, Henan, Hubei, Hunan, Sichuan, Yunnan, and other regions. It has the effects of tonifying qi and strengthening the spleen, as well as promoting blood circulation and relieving pain. It is primarily used to treat spleen deficiency with abdominal distension, fatigue and poor appetite, lung deficiency with coughing and wheezing, general weakness with spontaneous sweating, frequent nocturnal urination in the elderly, qi deficiency with edema, lumbago due to overwork, headaches, dysmenorrhea, and bruises and swelling from falls or blows.