Stalk celery, also known simply as celery, is a vegetable that belongs to the Apiaceae family. It is known for its long, fibrous stalks and distinctive flavor. Celery is commonly used as a crunchy, flavorful addition to salads, soups, and stir-fries. It is also often eaten raw as a snack, often with dips or spreads. Celery is low in calories and high in fiber, making it a popular choice for those looking to add more vegetables to their diet.