Description of Khat
"Street names for khat include ‘qat’, ‘gat’, ‘chat’, ‘miraa’, ‘murungu’ and ‘Arabian or Abyssinian tea’. Due to the degradation of cathinone, khat leaves need to be consumed soon after harvesting and therefore fresh leaves of khat are the preferred form of use, but dried leaves (‘graba’) are also available. Khat is usually consumed by chewing the leaves and shoots of the plant, but infusions are also possible. Recently, alcoholic extracts of khat sold as ‘herbal highs’ have been reported.80"
UN Office on Drugs and Crime, "The Challenge of New Psychoactive Substances: A Report from the Global SMART Programme" (Vienna, Austria: UNODC Laboratory and Scientific Section, March 2013), p. 13.