Daphne genkwa Sieb.et Zucc. is commonly known as Yuanhua, also known as Yuan Tiao Hua, Lai Tou Hua, and Nan Yuan Hua. It is mentioned in the "Shen Nong's Herbal Classic". Yuanhua refers to the dried flower buds of the plant Daphne genkwa Sieb.et Zucc. which belongs to the Thymelaeaceae family. The flower buds are harvested in spring before they have fully bloomed, and then they are cleaned and dried.
【Processing Method】1. Raw Yuanhua: According to the "Ancient and Modern Records", the flower buds are cut and then air-dried. According to the "Bo Ji Fang", the branches and leaves are removed. According to the "General Microdiscourse on Pediatric Health", the stems and stalks are removed. According to the "Essential Compendium of Materia Medica", the flower buds are cleaned and dried.