Inocarpus fagifer, commonly known as the Tahitian chestnut, Polynesian chestnut, aila or mape tree, is a species of flowering plant in the subfamily Faboideae of the legume family, Fabaceae. The tree has a wide range in the tropics of the south-west Pacific and south-east Asian regions, and a history of traditional use by the peoples of Polynesia and Melanesia. It is the only edible and culturally important member of the genus Inocarpus.