From which plant are morphine narcotics obtained?

Morphine is a powerful narcotic analgesic derived from the opium poppy, specifically from its sap or resin. The opium poppy, known scientifically as Papaver somniferum, produces opium, which contains a variety of alkaloids, including morphine. This alkaloid is recognized for its effectiveness in pain relief and has been used historically in medicine for its potent sedative properties.

In contrast, the coca plant is the source of cocaine, marijuana comes from the Cannabis sativa plant, and the willow tree is associated with salicylic acid and aspirin, which are unrelated to morphine. Therefore, the opium poppy is the correct source of morphine narcotics, showcasing the plant's critical role in pharmacology and medication development.