The Opium Poppy and relatives: Great ‘Weeds’ in every sense! Globally, no other plant comes anywhere near the importance of the opium poppy (Papaver somniferum) of the Family: Papaveraceae, as a medicinal plant. It is, perhaps, the greatest weed, the world has seen! Poppies are strong annual colonizers (weeds), and there are hundreds of species, both wild and cultivated. The…