In the south, it is mainly used to decorate courtyard, window, Tangbian and pavilion. At the same time, it is a kind of semi wild vegetable with fresh flowers and buds. It has the effect of clearing the liver and brightening the eyes. It can treat red eyes, swelling and pain, measles upper eyes, corneal pannus, etc. However, it's better not to put it indoors. Its strong fragrance is not good for people's health.
