The granitic islands of Seychelles are home to about 75 endemic plant species. There are a further 25 or so species in the Aldabra group. Particularly well-known is the Coco de Mer, a species of palm that grows only on the islands of Praslin and neighbouring Curieuse. The jellyfish tree is to be found in only a few locations on Mahe. This strange and ancient plant is in a genus of its own (Medusagynaceae). Other unique plant species include the Wright's Gardenia "Rothmannia annae" found only on Aride Island Special Reserve.