I was curious was there a difference between a Sweet Potato and Yam? The answer: YES.I came across the Sweet Potato website (http://www.ncsweetpotatoes.com/) and found the answer. I've also found an excellent website that gives you everything you need to know about the Sweet Potato along with a good selection of recipes. Enjoy and check the site out!
Yam vs. Sweet Potato:
A true yam is a starchy edible root of the Dioscorea genus, and is generally imported to America from the Caribbean. It is rough and scaly and very low in beta carotene.
Depending on the variety, sweet potato flesh can vary from white to orange and even purple. The orange-fleshed variety was introduced to the United States several decades ago. In order to distinguish it from the white variety everyone was accustomed to, producers and shippers chose the English form of the African word “nyami” and labeled them “yams.”
Today the U.S. Department of Agriculture requires labels with the term ‘yam’ to be accompanied by the term ‘sweet potato.’ Despite the label regulations, most people still think of sweet potatoes as yams regardless of their true identity.