Sweet Pototes And Yams, Are They Related?
Sweet Potatoes and Yams are both flowering plants they are not botanically related. Yams have one seed leaf while Sweet Potatoes have two seed leaves, Sweet Potatoes are actually from the Morning Glory family while Yams are from the Dioscoreacae family.
Yams are related to lilies and grasses. They are native to Africa and Asia, vary in size and are starchier and drier than Sweet Potatoes.
Sweet Potatoes come in a variety of colors, ranging from yellow to red, purple and even brown. They can be either firm or soft. The firm Sweet Potatoes remain firm until they've been cooked. The soft variety become softer and are moist in their texture.
People then to be confused when determining the difference between these two because when they were first grown in the United States they grew the firm variety first and when they later began to grow the soft variety they called them yams to to distinguish the difference between them.
Because these are indeed differences between them they are now required to be labeled correctly when being sold in the United States. This is a requirement of the US Department of Agriculture. What you usually find in grocery stores are sweet potatoes because Yams are mainly sold on the international market.