Name: Evan Pioneer Valley south, MA, USA (Zone 6a)
Arif, GCC has a very limited focus and doesn't cover Papaver. However both Papaver orientale and Papaver somniferum are in the DB so your plants have entries they could go into. Unless I'm missing something?
I've searched high and low and I cannot find two different plants other than the one on Discover Life, would they get it wrong? The source of the plants says "Botany Greenhouses"
Afterwards I did not go check and neither was it implied nor was I informed neither do I have continuous electricity or time to check periodically.
Regards,
Arif.
Afterwards I did not go check and neither was it implied 
nor was I informed neither do I have continuous electricity or time to check periodically. 
