Lime leaves are responsible for the tangy, citrus perfume of many Thai soups, salads, stir-fries, and curries. Leaves have an explosive fragrance, cleanly floral and citrus - not quite lemon, not quite lime. Their aroma and flavor are assertive and lingering, yet delicate. The rind of the fruit is slightly bitter with a strong citrus note. Dried leaves and dried rind lack the intense aroma of fresh.