Iboga commonly refers to Tabernanthe iboga, a shrub native to Central Africa. The plant has cultural and ceremonial contexts that are broader than any single chemical constituent. The botanical description of Tabernanthe iboga helps clarify why “iboga” can refer to plant material rather than one standardized substance.
Ibogaine is an alkaloid associated with iboga. An alkaloid is a naturally occurring chemical compound; the broader chemical category of alkaloids includes compounds found across many plants. When a source discusses ibogaine, it is generally referring to that specific compound, not automatically to every preparation made from the plant.
Iboga
Plant material. Its composition can vary by plant part, growing conditions, handling, and preparation.
Ibogaine
A specific alkaloid. Research can identify it as a particular compound, while still leaving broader questions about setting, dose, and risk.
This is the core difference: one term names a plant, while the other names a constituent. For people researching ibogaine, treating those terms carefully is a practical first step rather than a semantic detail.