basic carbohydrate colors colours common crop diet fibre food minerals perennial potato potatoes skin small small potatoes solanum tuberosum spud staple starch starchy texture tuber tuberous variety vegetable vitamins young shooting shoots abundant bulk fiber gourmet quantity clean cleaned color colour displayed distinctive edible elongated fingerling-potatoes flavor flavour kipfler-potatoes raw savory savoury small-potatoes solanum-tuberosum surfaces taste tasty textures uncooked vegetables washed waxy