The scientific name of the Callery "Bradford" pear is Pyrus calleryana. Originally introduced from China, the Bradford pear has become naturalized from seeds dispersed by animals and can crowd out native species.
About this Author
Gwen Bruno has been a full-time freelance writer since 2009, with her gardening-related articles appearing on DavesGarden. She is a former teacher and librarian, and she holds a bachelor's degree in education from Augustana College and master's degrees in education and library science from North Park University and the University of Wisconsin.