Apple (bionomial name Malus domestica) trees are any trees of the species Malus domestica in the rose family (Rosaceae). It is one of the most widely cultivated tree (for its fruit and wood), and the most widely known of the many members of genus Malus that are used by humans. The tree originated in Western Asia, where its wild ancestor, the Alma, is still found today. There are more than 7,500 known cultivars of apples, resulting in a range of desired characteristics.