The opium poppy is a type of plant in which opium and poppy seeds come from. Opium is where many narcotics like morphine, are taken from.

No. There are many poppy species, but opium referrers to the substance collected from one species (Papaver somniferum, the opium poppy).

The active ingredient in opium poppy sap is morphine.

It is the poppy flower which contains opium, not the poppy leaves.

Crude opium is made of the opium poppy's latex. This latex is obtained by cutting the unripe pod of the plant.