Opium poppy, Papaver somniferum, is the species of plant from which opium and poppy seeds are derived. Opium is the source of many narcotics, including morphine (and its derivative heroin), thebaine, codeine, papaverine, and noscapine. The Latin botanical name means the "sleep-bringing poppy", referring to the sedative properties of some of these opiates.
The poppy is the only species of Papaveraceae that is an agricultural crop grown on a large scale. Other species, Papaver rhoeas and Papaver argemone, are important agricultural weeds, and may be mistaken for the crop.
The plant itself is also valuable for ornamental purposes, and has been known as the "common garden poppy", referencing all the group of poppy plants.
Poppy seeds of Papaver somniferum are an important food item and the source of poppyseed oil, a healthful edible oil that has many uses. It is widely grown as an ornamental flower throughout Europe, North America, South America, and Asia.
Read more about Papaver Somniferum: Varieties, Opiates, History, Legality, Poppies As Medicine, Use As Food, Ornamental Cultivation, Popular Culture, Poppy Dilemma in Afghanistan