Buchu oil is extracted from the leaves of a flowering plant called Agathosma betulina (or round leaf Buchu) that is native to South Africa. The jagged-edged, oily leaves have been in many traditional medicines, as well as for their fragrance.
Botanical name: Agathosma betulina
Other names: Boegoe, Bucco, Bookoo, Diosma
Main constituents: D-pulegone, iso-pulegone, diosphenol, 4-diosphenol, iso-menthone, menthone