Fennel is also formerly known as Xiaohuaixiang. It is also called coriander, fennel, fennel seeds, Guxiang (Sichuan, Guizhou), and fragrant. The young leaves are used as vegetables and are the stems of fennel. It is the dried and mature fruit of fennel, an Umbelliferae plant. It was first recorded in Tang Materia Medica. Su Song said that people in the north call it fennel, and the similar sound means it is fragrant. Tao Hongjing said: When the smelly meat is boiled, a little bit of it is added, and there is no smell. The smelly sauce is also fragrant after being put into it, so it is called fennel. Li Shizhen said that there is a lot of folk customs about chewing Jinjin, fearing that it will be called fragrant, or this is why. The fruit (cumin) is used as a spice and for medicinal purposes, and the roots, leaves and whole plant can also be used as medicine.