Sometimes confused with the sweet potato, this root vegetable is not related to the potato. Native to South and Central America, as well as many parts of Asia and Africa, there are over 150 different varieties. Yams have starchy flesh in either off-white, yellow, purple, or pink. Their skin is normally pale to dark brown. Although they have more moisture and natural sugar, they can be interchanged with sweet potatoes in most recipes.
Nov 20 2007