Subspecies:
Papaver nudicaule subsp. americanum >
Species:
Papaver nudicaule >
Genus:
Papaver >
Subfamily:
Papaveroideae >
Family:
Papaveraceae >
Order:
Ranunculales >
Class:
Magnoliopsida >
Phylum:
Tracheophyta >
Kingdom:
Plantae >
Unranked:
Biota >