Yams tend to be big, cylindrical, and have a coarse and dark brown texture of the skin similar to that of tree bark. It isis usually white, off-white, and purple. The sweet potatoes are shorter, tapered at their ends, and the skin is smooth in color, which varies between tan and reddish-orange. Their flesh may be orange, white, or purple, thus becoming easier to identify in most grocery store. Know more about sweet potato vs yam
