Iceberg lettuce is medium to large in size, with a spherical shape, similar to cabbage. The firm head is tightly packed with broad, thick, and crisp leaves that are concentrated with a high-water content. The leaves vary in color depending on the particular cultivar, but the outer leaves are typically light green while the inner leaves range from pale yellow to a translucent white. Iceberg lettuce is crunchy and juicy with a mild, sweet flavor.