Is an herbaceous perennial in the family convolvulaceae grown for its edible storage roots. The plant has enlarged roots called tubers which act as an energy store for the plant. The plant tubers can be variable in shape and can be red, brown, white or purple in color. Sweet potatoes have a fusiform shape, orange color and thicker and hard rind. There are 2 types of sweet potatoes, those with dry flesh and those with gelatinous flesh. Sweet potatoes are a rich source of fiber as well as containing an array of vitamins and minerals including iron, calcium selenium and they are a good source of most of our B vitamins and vitamin C.