Adansonia grandidieri is the biggest and most famous of Madagascar's six species of baobabs. It is sometimes known as Grandidier's baobab or the giant baobab. The local name is renala or reniala, meaning "mother of the forest" in Malagasi language. This tree is endemic to the island of Madagascar, where it is an endangered species threatened by the encroachment of agricultural land. Grandidier's baobabs have massive, cylindrical, thick trunks, up to 3 m across. They can reach 25-30 m in height.