Anadenanthera peregrina

Anadenanthera peregrina, also known as yopo, jopo, cohoba, cojoba, parica or calcium tree, is a perennial tree in the family Fabaceae native to the Caribbean and South America. It grows up to 20 m (70 ft) tall, and has a thorny bark. Its flowers grow in small, pale yellow to white spherical clusters resembling Acacia (e.g. wattle) inflorescences. This plant consists of two species A. colubrina and A. peregrina It is an entheogen which has been used in healing ceremonies and rituals for thousands of years in northern South America and the Caribbean. Although the seeds of the yopo tree were originally gathered from the wild, increased competition between tribes over access to the seeds led to it being intentionally cultivated and transported elsewhere....read more on Wikipedia.