Kratom (Mitragyna speciosa), a plant with opioid-like psychoactive properties has been linked to nearly 100 overdose deaths in an 18-month period, the Center for Disease Control says in its April 12 report. Indigenous to Thailand, Indonesia, Malaysia , Myanmar and Papua New Guinea, Kratom is marketed as a dietary or herbal supplement and has seen increased use and popularity in the United States, complicating the already worsening opioid epidemic.