A scallion, also known as a green onion, is a type of vegetable that belongs to the Allium family, which includes onions, garlic, and leeks. It has a long, slender green stalk and a small white bulb at the base. Scallions are often used in cooking for their mild flavor and crunchy texture, making them a popular ingredient in salads, soups, and various dishes. Scallions can be eaten raw or cooked, and they are rich in vitamins A, C, and K. They are low in calories and can add a fresh taste to meals. Scallions are commonly found in grocery stores and can also be easily grown in home gardens.