Brief introduction of ephedra

Ephedra is a herbaceous shrub of Ephedraceae, with a height of 20-40 cm. Alias ephedra and ephedra sinica. Produced in Liaoning, Jilin, Inner Mongolia, Hebei, Shanxi, northwestern Henan and Shaanxi provinces. Strong adaptability. Casuarina equisetifolia is a third-class protected wild plant in Jilin Province, and the state prohibits the collection of wild resources. Casuarina equisetifolia is an important medicinal plant, which is rich in alkaloids and is the main plant for extracting ephedrine in China.