The flower of an opium poppy (Papaver somniferum) in three stages of development. From left to right, the bud, the flower, and finally the seed capsule. The plant is used to derive opium and poppy seeds. The Latin botanical name means the "sleep-bringing poppy", referring to the sedative properties of some of the opiates—narcotics derived from opium.
Photo: Joaquim Alves Gaspar