The carob tree, Ceratonia siliqua (also called algarroba) is a polygamous, termophilous and typical evergreen species of the leguminous tree. It is a member of the pea family, Fabaceae, which grows throughout the Mediterranean basin, mainly in Spain, Italy, Portugal, Morocco, and Turkey. Carob trees grow best in calcareous soil, preferably near the sea. They are drought resistant, but tolerate only light frost. They have been introduced into many other countries with warm climates, mainly the USA (Florida and California), Australia, and Argentina. Carob trees are handsome trees with pinnately compound leaves that have two to six pairs of oval leaflets; the trees can grow to a height of 15 m. Most carob trees are dioecious (Batlle & Tous, 1997).
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