Cucurbita ecuadorensis  Cucurbita ecuadorensis is a species of squash, discovered in 1965 growing wild in Ecuador. Like most wild gourds and squashes, it is creeping vine and is often found climbing over other vegetation. It has been found only in the western provinces of Guayas and Manabi. There is evidence that it was domesticated in Ecuador around 10,000 years ago, likely for its seeds, but no direct records exist and it is no longer cultivated. It is resistant to many diseases of cultivated "Cucurbita" species, and has been used to breed resistance to several diseases into common squashes. For example, researchers at Cornell University used "Cucurbita ecuadorensis" to breed resistance to papaya ringspot virus, watermelon mosaic virus, and powdery mildew, into common "Cucurbita maxima" cultivars. "Cucurbita ecuadorensis" is listed on the IUCN Red List as vulnerable, and is found protected in the Machalilla National Park.