@BahamaDan, looking through the List of Mulberries (Morus) cataloged by NCGR I found Morus celtidifolia is native to regions of Central America plus naturalized in Bolivia, Ecuador, and Peru.
@BahamaDan, looking through the List of Mulberries (Morus) cataloged by NCGR I found Morus celtidifolia is native to regions of Central America plus naturalized in Bolivia, Ecuador, and Peru.