text: Opium poppies are plants.  
  
  Use of opium goes back thousands of years.  
  
  "The Mediterranean region contains the earliest archeological evidence of human use; the oldest known seeds date back to more than 5000 BCE in the Neolithic age."
  
  It's refined substances are some of the most addictive known to man.
  
  Heroin, morphine, codeine.