Pawpaw (Asimina) is a genus of small clustered trees with large leaves and fruit, native to North America. The genus includes the largest edible fruit indigenous to the continent. They are understory trees found in well drained deep fertile bottomland and hilly upland habitat. Pawpaw is in the same family (Annonaceae) as the custard-apple, cherimoya, sweetsop, ylang-ylang and soursop, and it's the only member of that family not confined to the tropics. Names The name, also spelled paw paw, paw-… (More on Pawpaw)