OFFICIAL QUASSIA - (genus) - is a wild crafted herb that grows naturally in Jamaica and it draws all of its nutrients from the earth naturally. Official Palo Mulato bark is referred to by Common Names: Amargo, Bitter-Ash, Bitter Wood, Bitterwood, Bois Amer, Cayenne's quinquina, Cuasia, Écorce de Quassia, Jamaican Bitterwood Tree, Jamaican Quassia, Palo de Cuasia, Pao Tariri, Picrasma, Picrasma excelsa, Quassia amara, Quassia Amer, Quassia Bark, Quassia de Jamaïque, Quassia de Surinam, Quassia excelsa, Quassia Wood, Ruda, Simaruba, Simarubabaum, Simaba, Surinam Quassia, Surinam Wood, Suriname Wood