Simplify the following text for a Grade 7 native English-speaking person.
Original: The apple is the pomaceous fruit of the apple tree , species Malus domestica in the rose family ( Rosaceae ) . It is one of the most widely cultivated tree fruits , and the most widely known of the many members of genus Malus that are used by humans .
Simplified: The scientific name of the apple tree genus in the Latin language is Malus .