winter squash cultivar hubbard squash plant Cucurbita maxima Duchesne Cucurbita maxima, one of at least four species of cultivated squash, is one of the most diverse domesticated species. This species originated in South America from the wild Cucurbita andreana over 4000 years ago. Hubbard squash is a cultivar of this species that usually has a tear-drop shape. They are often used as a replacement for pumpkins in cooking.[https://en.wikipedia.org/wiki/Cucurbita_maxima] Cucurbitaceae PLANTS:CUMA3 cucurbita maxima cucurbita maxima var. hubbard Cucurbita maxima requires discussion