Malus ( /ˈmeɪləs/ or /ˈmæləs/), the apples, are a genus of about 30–35 species of small deciduous trees or shrubs in the family Rosaceae. Other studies go as far as 55 species including the domesticated Orchard Apple, or Table apple as it was formerly called (M. domestica, derived from M. sieversii, sometimes mistakenly called M. pumila). The other species and subspecies are generally known as "wild apples", "crab apples", "crabapples" or "crabs".