Longan (Latin scientific name: Dimocarpus Longan). ), also known as longan, yizhi and evergreen, is tall. Picking in July and August when the fruit is ripe and yellow-brown. It is a plant of Sapindaceae, the fruit can be eaten raw or processed into dried products, and its meat, kernel, skin and root can be used as medicine. Longan is native to the south and southwest of China, and is cultivated in many countries and regions in the world, such as China, Thailand, Indonesia, Queensland, Hawaii and Florida.