P. somniferum and its sub-groups.

[Sebastior]

The subgroups i could think of at the moment are these:
Paeoniflorum
Laciniatum
Polycephalum
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Are all of these psychoactive? Is one more than the other, or does it simply not matter?
Anyone with experiences with some and the mother of all somniferums?
I think paeoniflorum (peony poppies) are common.