Mitragyna stipulosa

Mitragyna stipulosa is a species of flowering plant in the family Rubiaceae. It is found in Angola, Cameroon, Central African Republic, the Republic of the Congo, the Democratic Republic of the Congo, Gabon, Gambia, Ghana, Guinea, Nigeria, Senegal, Sierra Leone, Sudan, Uganda, and Zambia. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical swamps. It is threatened by habitat loss.

Phytochemicals
Mitragyna stipulosa leaf contains the alkaloids Mitraphylline, rotundifoline, isorotundifoline, rhynchophylline and isorhynchophylline.