Overview of Rehmannia (Di Huang)
Rehmannia (Di Huang) refers to the fresh or dried tuber of the plant Rehmannia glutinosa Libosch., belonging to the Scrophulariaceae family. It was first recorded in the Shen Nong Ben Cao Jing (Shen Nong’s Classic of Materia Medica) and is classified as a superior herb. The fresh form is known as “Xian Di Huang” (Fresh … Read more