Nyssa sylvatica, also known as black gum, sour gum, or tupelo, is a tree native to North America. In some regions, it is also called pepperidge or tupelo gum. The name black gum comes from the tree's dark, furrowed bark, while sour gum refers to the tart flavor of its fruit. Tupelo, on the other hand, is a Native American word for swamp, as the tree thrives in wetland areas. The tree's scientific name, Nyssa sylvatica, comes from the Greek goddess Nyssa and the Latin word for forest, sylvatica, reflecting its natural habitat in woodland areas.