This is an avocado tree. This tree in Lihe Square, Guzhen Town, Zhongshan City is a tropical fruit tree called avocado tree, also known as butter fruit tree, which originated in Central America. Avocado trees like warm, humid and sunny environment, and are suitable for growing in tropical and subtropical areas in the south. Avocado tree has high economic value and nutritional value. Its fruit is rich in fat, protein, vitamin C, vitamin E and other nutrients, and is known as green gold. Avocado tree also has high medicinal value, which can be used for lowering blood sugar, blood pressure and antioxidation.