This is the common pear, widely planted across eastern North America. Some records mapped here may be from old plantings, but this species has apparently established from seed at many sites in Ky. Naturalized populations may revert to smaller fruit size and to other wild-type characters (Waldron et al. 1976). Under browsing pressure, wild plants in Europe can become densely branched and thorny in a "cage-form" without flowers, whereas above the reach of browsers there is a distinct "escaped-form" with flowers (Chursky et al. 2024).