Dimocarpus longan, commonly known as the longan (/?l????n/), is a tropical tree species that produces edible fruit It is one of the better-known tropical members of the soapberry family (Sapindaceae), to which the lychee, rambutan, guarana, korlan, pitomba, genip and ackee also belong The fruit of the longan are similar to that of the lychee, but less aromatic in taste