Mitragyna speciosa is the botanical name for the kratom tree, an evergreen in the coffee family (Rubiaceae) native to Southeast Asia. Its dried leaves are the source of all kratom powders, capsules, and extracts.
For where the tree grows, how the leaf is processed, and what kratom is, read the full guide: What Is Kratom? →
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Disclaimer: This glossary entry is for educational purposes only and is not intended as medical, legal,
or professional advice. Kratom is not approved by the FDA to diagnose, treat, cure, or prevent any disease.