Carob, or St. John's Bread, an evergreen tree native to the Mediterranean region. Its pods, from 4 to 12 inches (10 to 30 cm) long, contain large numbers of small, hard seeds surrounded by sweet, edible pulp. The tree grows up to 50 feet (15 m) high and has dark, evergreen leaves, each made up of about four pairs of oval leaflets. The pods are used as a livestock feed and to make a chocolate substitute. The seeds are used to make a coffee substitute and are a source of a gum used in cosmetics, textile sizings, drugs, paints, and in a variety of food products.
The carob tree is Ceratonia siliqua of the pea family, Leguminosae.