Orange tubers are a type of root vegetable, also known as yams (4 letters). Yams are starchy tubers that come in a variety of shapes and sizes, and can range in color from white to yellow to orange. They are a staple food in many parts of the world, and are often boiled, roasted, or mashed. Orange tubers are a type of yam that have an orange flesh and a sweet flavor. They are popular in Caribbean cuisine, and are often used in soups, stews, and curries.