OakLeaf lettuce is medium to large in size, with a narrow and compact base fanning out to a wide, curly, loose top. It grows in an extended, rosette shape. Soft, smooth, and broad with many curls and frills, the deeply lobed leaves link to a central base, branch out in all directions, and are tender, smooth, and broad. The leaves have a brilliant green edge that fades to a white or pale green in the center, which contains a delicious, crunchy stalk.OakLeaf lettuce is firm and crisp, and when the stalk is scraped, it emits a sweet or bitter odor, depending on the variety. The leaves have a mild, sweet, and nutty flavor, with a hint of bitterness that develops with age.