Iceberg lettuce, scientifically known as Lactuca sativa var. capitata, is a crisphead variety of lettuce characterized by its tightly packed, pale green leaves that form a dense head. Originating in the United States, it was first cultivated in the early 20th century and became popular due to its ability to be grown and transported with relative ease, maintaining its crunch and relatively mild, watery flavor. Named for its method of transport via "ice boxes" to keep it fresh during shipping, Iceberg lettuce quickly became a staple in American salads, sandwiches, and burgers, appreciated for its refreshing texture rather than a strong taste. Despite its lower nutritional content compared to darker leafy greens, Iceberg lettuce remains a beloved base for many dishes, valued for its crunch and versatility in culinary applications.