What is "ceratonia siliqua"

Locust tree \Lo"cust tree`\n. [Etymol. uncertain.] (Bot.) A large North American tree of the genus Robinia ( Robinia Pseudacacia), producing large slender racemes of white, fragrant, papilionaceous flowers, and often cultivated as an ornamental tree. In England it is called acacia.

Note: The name is also applied to other trees of different genera, especially to those of the genus Hymen[ae]a, of which Hymen[ae]a Courbaril is a lofty, spreading tree of South America; also to the carob tree ( Ceratonia siliqua), a tree growing in the Mediterranean region.

Honey locust tree (Bot.), a tree of the genus Gleditschia ) Gleditschia triacanthus), having pinnate leaves and strong branching thorns; -- so called from a sweet pulp found between the seeds in the pods. Called also simply honey locust.

Water locust tree (Bot.), a small swamp tree ( Gleditschia monosperma), of the Southern United States.

Ceratonia siliqua, commonly known as the carob tree, St John's-bread, or locust bean (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 to replace cocoa powder. Carob bars, an alternative to chocolate bars, are often available in health-food stores.

The carob tree is native to the Mediterranean region, including Southern Europe, Northern Africa, the larger Mediterranean islands, the Levant and Middle-East of Western Asia into Iran; and the Canary Islands and Macaronesia. The carat, a unit of mass for gemstones, and of purity for gold, takes its name, indirectly, from the Greek word for a carob seed, kerátion.