The butternut squash originates from Mexico and Guatemala. Our butternut squashes come mainly from Portugal and Brazil.Click to see full answer. Keeping this in view, where is butternut squash grown? Butternut squash (Cucurbita moschata), sometimes known in Australia and New Zealand as butternut pumpkin or gramma, is a type of winter squash that grows on a vine. Butternut squash. Cucurbita moschata ‘Butternut’ Breeder Charles Leggett Origin 1940s in Stow, Massachusetts, United States Similarly, what is butternut squash called in India? Butternut Squash is commonly known by various names such as butternut pumpkin or sweet pumpkin in English, Kalyana poosannikai in Tamil, Thiyya gummadikaya in Telugu, Kaddu in Hindi, Mathanga in Malayalam and Seegumbalakayi in Kannada. Accordingly, why are they called butternut squash? So Leggett took a gooseneck squash, which was long and gangly, and crossed it with other squashes and made selections from there. Butternut belongs to the species Cucurbita moschata. As the interior was as smooth as butter and sweet as a nut, it was called the ‘butternut’.What family does butternut squash belong to? Cucurbits