Lychee is the sole member of the genus Litchi in the soapberry family, Sapindaceae. It is a tropical tree native to the Guangdong and Fujian provinces of southeastern China, where cultivation is documented from the 11th century. 

Shelf Life:two weeks
How do I increase the shelf life of fresh litchi fruit? Litchi fruit or lychees are best stored in the fridge but don't secure the plastic bag that you've put them in. The Internet says that the lychees should last two weeks in the fridge.