Botanically, the fruit of litchi is a

Botanically, the fruit of litchi is a Nut.
Botanically litchi belongs to Sapindaceae family. The fruit is a one-seeded nut, develops in bunches, and varies in shape and size. The edible portion of litchi called aril lies under the papillate, pinkish-red pericarp and surrounds the dark-brown, oily-skinned seed. The Litchi plant requires a warm, humid climate for vegetative growth.