 ceratonia siliqua, commonly known as the carob tree, st john's-bread,itis report page: ceratonia siliqua . accessed 5.11.2011 or locust beanrehm, s. ; espig, g. "the cultivated plants of the tropics and subtropics : cultivation, economic value, utilization". - weikersheim (de) : margraf, 1991. - viii,552 p. - p.220 (not to be confused with the african locust bean) is a species of flowering evergreen shrub or tree in the pea family, fabaceae. it is widely cultivated for its edible pods, and as an ornamental tree in gardens. the ripe, dried pod is often ground to carob powder which is used as a substitute for cocoa powder. it is native to the mediterranean region including southern europe, northern africa, the larger mediterranean islands; to the levant and middle-east of western asia into iran; and to the canary islands and macaronesia.npgs/grin - ceratonia siliqua information . accessed 5.11.2011http://www.tropicos.org/name/13028551 tropicos.org. ceratonia siliqua accessed 5.10.2011 the word carat, a unit of mass for gemstones and a unit of purity for gold alloys, was possibly derived from the greek word kerÃ¡tion literally meaning a small horn, and refers to the carob seed as a unit of weight. ==morphology== the ceratonia siliqua tree grows up to  tall. the crown is broad and semi-spherical, supported by a thick trunk with brown rough bark and sturdy branches. leaves are  long, alternate, pinnate, and may or may not have a terminal leaflet. it is frost-tolerant to roughly 20 degrees f. most carob trees are dioecious, some are hermaphrodite. the male trees don't produce fruit.sweet crop broadcast: 14/04/2013 1:11:16 pm reporter: prue adams the trees blossom in autumn. the flowers are small and numerous, spirally arranged along the inflorescence axis in catkin-like racemes borne on spurs from old wood and even on the trunk (cauliflory); they are pollinated by both wind and insects. the fruit is a legume (also known less accurately as a pod), that can 
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