is a biological genus in the family Papaveraceae (Poppies) and order Ranunculales.
Stylophorum diphyllum
Ehrendorferia
Arctomecon
Dicentra
Sanguinaria
Chelidonium
Platystemon
Meconella
Corydalis
Fumaria
Eschscholzia
Glaucium
Romneya
Macleaya
Papaver
Argemone
Canbya
Dendromecon