The star anise that people usually use is actually the fruit of the star anise tree.

The fruit of Illicium verum, also called Illicium verum, is mostly octagonal and belongs to Illicium of Illicium of Illicium, a subclass of dicotyledonous plants. It mainly grows in the subtropical humid and warm valley in southern China and has a wide range of uses. It can be used as cooking seasoning and medicine, and it is a fruit tree with extremely high economic and ecological benefits.

Octagonal, as the name implies, has eight angles, seven angles or nine angles, all of which are true. Illicium verum grows on trees. Because of sunshine, moisture, nutrition and development, the number of angles is not exactly the same, and 7-9 angles are normal.

Poisonous awn usually has 1 1- 14 angle. During transportation, the horn will break down.