Leaf lettuce is a type of leafy green vegetable that is commonly used in salads and sandwiches. It has a tender texture and a mild flavor, making it a popular choice for fresh dishes. There are several varieties of leaf lettuce, including romaine, butterhead, and oak leaf, each with its own unique shape and color. This vegetable is rich in vitamins A and K, as well as other essential nutrients. Leaf lettuce is low in calories, making it a healthy addition to meals. It is typically grown in cool weather and can be harvested multiple times, allowing for a continuous supply throughout the growing season.