Asimina triloba - pawpaw
The North American Indians called this plant assimin and ate its large fruit. Apparently the fruit reminded European settlers of tropical papaw or pawpaw (Carica papaya), so they used the same name. However, the two plants are unrelated, and the North American pawpaw is in fact related to a completely different tropical species, one of the custard-apples, Annona cherimola, which has several common names in English: cherimoya,chirimoyo, momona and kelemoio.