The name Catuaba (/kəˈtwɑːbə/ kə-TWAH-bə, via Portuguese from Guarani) is used for the infusions of the bark of a number of trees native to Brazil. The most widely used barks are derived from the trees Trichilia catigua[1] and Erythroxylum vaccinifolium. Other catuaba preparations use the bark of trees from the following genera or families: Anemopaegma, Ilex, Micropholis, Phyllanthus, Secondatia, Tetragastris and species from the Myrtaceae. Local synonyms are Chuchuhuasha, Tatuaba, Pau de Reposta, Piratancara and Caramuru.
It is often claimed that catuaba is derived from the tree Erythroxylum catuaba, but this tree has been described only once, in 1904, and it is not known today to what tree this name referred. E. catuaba is therefore not a recognised species.[2]