“…They are widely used in Brazil and in other countries to treat various diseases, especially infections, pain processes and diabetes. Particularly prominent are aqueous extracts of the leaves, stalks and roots of B. cheilantha, B. forfi cata, B. monandra, B. glabra, B. rufescens, B. splendens and B. ungulata (Achenbach et al, 1988;Ritter et al, 2002;Pereira et al, 2004;Macedo and Ferreira, 2004;Morais et al, 2005;Silva et al, 2006;Agra et al, 2007;Agra et al, 2008).…”