Carnauba (/kɑːrˈnɔːbə, -ˈnaʊ-, -ˈnuː-, -nɑːˈuː-/;[1][2] Portuguese: carnaúba [kaʁnaˈubɐ]), also called Brazil wax and palm wax, is a wax of the leaves of the carnauba palm Copernicia prunifera (synonym: Copernicia cerifera), a plant native to and grown only in the northeastern Brazilian states of Ceará, Piauí, Paraíba, Pernambuco, Rio Grande do Norte, Maranhão and Bahia.[3] It is known as the "Queen of Waxes".[4] In its pure state, it is usually available in the form of hard yellow-brown flakes. It is obtained by collecting and drying the leaves, beating them to loosen the wax, then refining and bleaching it.[5] As a food additive, its E number is E903.