Pumpkin – Cucurbita pepe, C. mixta, C. maxima, C. moschata   The origin of pumpkins is not known, although pumpkins are thought to have originated in North America. The oldest evidence, pumpkin-related seeds dating between 7000 and 5500 B.C., were found in Mexico. Pumpkins are a squash-like fruit that range in size (less than…