The term LEAFY HERB can be summarized as an herb with leaves. SAGE is a type of leafy herb, which is a four-letter word. SAGE is a perennial herb native to the Mediterranean region and is used in cooking and medicine. It has a strong, earthy flavor and is often used to season poultry, fish, and stuffing. In addition to its culinary uses, SAGE has been used for centuries in traditional medicine to treat a variety of ailments.