Longan is also called longan and litchi. This is a kind of fruit. More than 30 varieties such as Tiger Eye, Shek Kip Longan, etc. Fujian, Taiwan Province, Guangdong, Guangxi, Sichuan, Guizhou and Yunnan are all distributed. Among them, Fujian's output accounts for 50% of the national total output.
Longan is planted in Thailand, Vietnam, Laos, Myanmar, Sri Lanka, India, Philippines, Malaysia, Indonesia, Madagascar, Queensland, Australia, Hawaii and Florida.
Longan is named after its round black luster and white umbilical protuberance, which resembles the eyes of the legendary "dragon". Fresh longan is tender, juicy and delicious, which is beyond the reach of other fruits. Fresh longan becomes longan in traditional Chinese medicine after drying.
Longan is picked in July and August when the fruit is ripe and yellow-brown. The life span of seeds is very short. Remove the aril after shelling, and sow immediately after washing with clear water. When the height of seedlings is 8 ~ 10 cm, plant them in separate beds or move them into nutrient bags, and use 6-month-old or 1 year-old seedlings for afforestation in spring rain or autumn. The forest land is selected in the hilly platform below 500 meters above sea level. Cultivated varieties must be propagated by grafting.
Pharmacological research shows that longan contains many nutrients such as glucose, sucrose, vitamins A and B, among which protein, fat and various minerals are more. These nutrients are very necessary for the human body. Especially for hard-working people, it is more effective to consume sad temper and blood.
Longan can treat weakness or mental decline after illness. It is also suitable for women's postpartum makeup. Li Shizhen recorded in Compendium of Materia Medica: "Litchi is the most expensive food, and longan is the best resource". I admire longan even more.
References:
Longan-Baidu Encyclopedia