Eucommia ulmoides, a traditional Chinese medicine material name. This product is the bark of Eucommia ulmoides, a plant of the Eucommia family. In order to protect resources, the local peeling method is generally used. From Qingming to the summer solstice, select plants that have grown for 15-20 years or more, peel off the bark according to the size of the medicinal material, scrape off the rough skin, and dry them in the sun. Place in a ventilated and dry place. The main indications are: tonifying the liver and kidney, strengthening muscles and bones, and preventing miscarriage. Treatment for lumbar spine pain, weakness of the feet and knees, residual urine, wet itching under the vagina, fetal leakage and desire for abortion, restless fetal movements, and high blood pressure.