Native to western Central Africa, iboga is famously used for shamanic spiritual practice, and laterally, therapeutically for addiction. Alarmingly, however, the plant population is recently reported to be under threat (so please support any preservation efforts you encounter).
This is a deep and serious 24-36 hour experience at certain doses, and is not something to engage lightly, or I would suggest, recreationally.
This and the other images posted in this series were taken during the researching for and the writing of The Honest Drug Book