Anise refers to anise, anise (Illiciumverum), also known as fennel, star anise, anise and star anise. It is a plant of Illicium in Illicium. Evergreen shrub, flowering in early summer, with 8-9 trees, star-shaped in whorls and strong fragrance, can be used as spice, seasoning and medicine. Its dried fruit of the same name is one of the seasonings for Chinese food and cooking in Southeast Asia. It is an evergreen tree growing in a humid, warm and semi-cloudy environment, and its height can reach 20 meters. Mainly distributed in southern Chinese mainland. Fruits are picked in autumn and winter and are reddish-brown or yellowish-brown after drying. The smell is fragrant and sweet. Use whole fruit or powder.