Sweet potatoes have more in common with morning glories than they do with potatoes. They have even less in common with the yam, even though the names are often used interchangeably. Chances are, when you see vegetables labeled as ‘yams’ they are really sweet potatoes. To make it even more confusing, the potato got its name from the Taíno word for sweet potato – batatas. The Taíno were a people native to the Caribbean, relatively near the sweet potato’s center of origin in South America.
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