The pawpaw, paw paw, paw-paw, or common pawpaw (Asimina triloba) is a species in the same plant family as the custard-apple, cherimoya, sweetsop, ylang-ylang and soursop. The flavor of the fruit is something like banana custard. The pawpaw is native to the eastern United States and Canada. From the University of Kentucky Extension Service. Freezing time not included in preparation time.