Kratom originates from the tree species known as Mitragyna Speciosa, native to Southeast Asia, mainly the South of Thailand. The substance is extracted from its evergreen leaves. Most cultivated Kratom is found in the central land southern parts of Thailand. For more details make a call us at 714-924-7328. Kratom originates from the tree species known as Mitragyna Speciosa, native to Southeast Asia, mainly the South of Thailand. The substance is extracted from its evergreen leaves. Most cultivated Kratom is found in the central land southern parts of Thailand. For more details make a call us at 714-924-7328.