Here in the Caribbean, we get 3 varieties of sweet potoates and we identify them by the color of their flesh. There is the white-flesh sweet potato, the yellow-flesh sweet potato, and the orange-flesh sweet potato.
The yellow flesh sweet potato is easily identifiable because the skin is usually light coloured, almost cream.
The orange and white-fleshed sweet potatoes both have purple skins and not as easily identifiable at a glance. Most people depend on the vendors to advise them if both varieties are available for sale at the same stall.
The white-fleshed sweet potato is the most common variety that we get in the Caribbean and it is used to make a variety of dishes.
The orange and yellow sweet potatoes are rich in carotene. All sweet potatoes provide vitamin A and minerals.