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Euphorbiaceae, the spurge family, comprises some 6,880 species and 223 genera of flowering plants distributed primarily in the tropics. The flowers are typically unisexual and are borne in a characteristic cluster known as a cyathia. Many species contain milky latex, and some are useful as a source of oil or wax. The following is a list of some of the major genera and species in Euphorbiaceae, arranged alphabetically by common name.