What type of fruit is litchi?

Litchi (Litchi chinensis) is classified as a tropical to subtropical fruit. It belongs to the family Sapindaceae and is often referred to as a lychee or leechee. The litchi fruit has a small, round to oval shape and is covered with a reddish-pink or sometimes greenish skin that is inedible. The interior flesh of a litchi is white, translucent, and has a juicy, slightly sweet, and perfumed taste. Inside, it contains a single, non-edible seed.