Vitex negundo, also known as Xihe willow, is mainly produced in towns and villages such as Qiancao and Tangsan in Pingyuan County, and other counties (cities) are also cultivated or wild. The branches of Vitex negundo are flexible and strong, and can be used to make various baskets. Its tender leaves are flat, sweet and salty, and it has obvious curative effect on rash and rheumatism.