It's true: yams and sweet potatoes are totally different plants and are not even closely related. In fact, these tasty starchy veggies are actually in two different plant families entirely! Yams are members of the genus Dioscorea and are in their own special family, Dioscoreaceae.
Are yams and sweet potatoes one in the same?
That sweet, orange-colored root vegetable that you love so dearly is actually a sweetpotato. Yes, all so-called “yams” are in fact sweetpotatoes. Most people think that long, red-skinned sweetpotatoes are yams, but they really are just one of many varieties of sweetpotatoes.
What are the difference between sweet potatoes and yam?
Yams are starchy and have a rough, brown exterior. They can grow up to 45 feet long and are eaten in parts of Latin America, West Africa, the Caribbean, and Asia. Sweet potatoes are a New World root vegetable, have a softer, reddish skin, a creamier interior, and often, a darker interior.