Paullinia spp.

Several uses for the Paullinia spp. have been recorded. The fruit of several species are edible, with P. cupana (Guarana) being the most popular. Other species, notably P. yoco (Yoco), are used as herbal medicine for various treatments. The sap of some species, notably P. cururu is highly toxic, and is used as an arrow poison by Native American tribes in South America. Similarly, the long flexible stems of P. pinnata are used to poison fish in shallow pools.