Yopo (anadenanthera peregrina) is a large legume tree native to the Caribbean and South America. It grows up to twenty metres tall and produces copious numbers of seed pods. Importantly, each pod possesses between three and ten flat beans or seeds. When prepared and dried, these seeds become a potent psychedelic. Unfortunately, the shamanic use and history of yopo, jopo, cohoba, parica, or calcium tree has disappeared into the mists of time, Europeans first describing its use in 1571 and oppressing its usage in the subsequent century.