Guaraná (Paullinia cupana) is a climbing plant in the maple family, native to the Amazon basin and especially common in Brazil. Guaraná fruit plays an important role in Tupi and Guarani indian Brazilian culture. The word guarana has its origins in the Sateré-Maué word for the plant, warana.

The Guarani indigenous people would make a tea  by shelling and washing the seeds, followed by pounding them into a fine powder.