Commonly seen flavours are caraway, cardamom, cumin, anise, fennel, and lemon or orange peel. A lemon peel may be used as garnish. It contributes to the characteristic odor of orange peel, orange juice and other citrus fruits. They would peel off the bark, bite the twig and then scrub their teeth. They will also peel back tree bark to eat the nutritious second layer. A thick peel covers the fleshy pulp. They also peel the sweet potatoes, using their incisors and canine teeth. The coating can crack, but it will not peel. Displayed at right is the color "orange peel". Phenol used to be a deep chemical peel. Both the Minneola and Honeybell Tangelo peel rather easily. They can also peel, break, and be infected. Labels are often difficult to peel and apply. "Banana Peel" (1963) was a popular comedy with Jeanne Moreau. Gladstone riposted "It was enough to make Peel and Cobden turn in their graves".