Kratom, (Mitragyna speciosa korth), is a tropical tree indigenous to Thailand, Malaysia, Myanmar and other areas of Southeast Asia. Kratom is in the same family as thecoffee tree (Rubiaceae).
https://maps.google.co.jp/url?q=https://www.scribd.com/document/574852788/fphar-12-726003 The average weight of a fresh and a dried leaf is about 1.7 and 0.43 g respectively. The yellow and globular flowers of the tree bear up to 120 florets. The fruit is a capsule containing numerous small flat seeds.
