Indigenous to West Africa, a Mitragyna species with Uncaria-like alkaloids (Rhynchophylline) reportedly used traditionally in the treatment of malaria. Phytochemical investigations on the non-alkaloid extracts of Mitragyna Stipulosa bark have led to the isolation of a series of triterpenoids mainly consisting of quinovic acid and its glycoside derivatives.
Many people mistake this for Mitragyna speciosa which is Malaysian leaf also referred to as kraken kratom capsules. See the related link below for more information.