Cucurbita sororia is a plant species of the genus Cucurbita, sometimes considered to be a subspecies of Cucurbita argyrosperma, C. a. subsp. sororia. It ranges from northern Mexico to Nicaragua, mostly along the Pacific coast. This species was originally considered closely related to Cucurbita texana but C. sororia was later shown to be an ancestor of Cucurbita argyrosperma, with which it hybridizes well.
^ abcNee, Michael (1990). "The Domestication of Cucurbita (Cucurbitaceae)". Economic Botany (New York: New York Botanical Gardens Press) 44 (3, Supplement: New Perspectives on the Origin and Evolution of New World Domesticated Plants): 56–68. JSTOR4255271.edit
^Saade, R. Lira; Hernández, S. Montes. "Cucurbits". Purdue Horticulture. Retrieved January 3, 2015.