Anise is a common name of Illicium verum, which is mainly distributed in Guangxi, Guangdong, Guizhou and Yunnan in China. In recent years, studies have shown that anise extract has good antibacterial and insecticidal activities and anti-free radical oxidation.

Generally, it is a colorless or yellowish volatile oily liquid, which is composed of anethole monoterpenoids, monoterpenoids, sesquiterpenes and so on. The main component is trans-anethole.

2. The picture of fennel is as follows:

Foeniculum vulgare L. It is the dried and mature fruit of Foeniculum vulgare. When the fruit is first ripe in autumn, cut the plant, dry it in the sun, lay the fruit and remove impurities.

Physiological characteristics: this product is a double-hanging fruit, which is cylindrical and slightly curved, with a length of 4 ~ 8 mm and a diameter of1.5 ~ 2.5 mm. The surface is yellow-green or light yellow, with slightly sharp ends, a yellow-brown protruding column base at the top, and sometimes tiny fruit stalks at the base.

The schizocarp is oblong, with 5 longitudinal edges on the back, and the joint surface is flat and wide. The cross section is slightly pentagonal, and the four sides of the back are about the same length. It has a special aroma and tastes slightly sweet and pungent.