Guarana

Guarana (pronounced gwa-ra-naa) is a berry that grows in Venezuela and the northern parts of Brazil. The name 'Guarana' comes from the Guarani tribe that lives in Brazil. Guarana plays a very important role in their culture, as this herb is believed to be magical. information taken from http://www.guarana.com/

See also: Drogenwiki.de: Guarana