Cerastites dubius (L.) Gray, 1821 | Cerastites laciniatus Gray, 1821 | Papaver agreste E.H.L. Krause, 1902 | Papaver collinum Bogenh. ex Bisch., 1849 | Papaver depressum Jord. & Fourr., 1866 | Papaver dubium proles collinum (Bogenh. ex Bisch.) Rouy & Foucaud, 1893 | Papaver dubium proles lamottei (Boreau) Rouy & Foucaud, 1893 | Papaver dubium proles modestum (Jord.) Rouy & Foucaud, 1893 | Papaver dubium subsp. collinum (Bogenh. ex Bisch.) P.Fourn., 1928 | Papaver dubium L., 1753 subsp. dubium | Papaver dubium subsp. lamottei (Boreau) Syme, 1863 | Papaver dubium subsp. modestum (Jord.) P.Fourn., 1928 | Papaver dubium var. albiflorum Boiss., 1867 | Papaver dubium var. depressum (Jord. & Fourr.) Rouy & Foucaud, 1893 | Papaver dubium var. erosulum (Jord.) Rouy & Foucaud, 1893 | Papaver dubium var. errabundum (Jord.) Rouy & Foucaud, 1893 | Papaver dubium var. luteorubrum (Jord.) Rouy & Foucaud, 1893 | Papaver dubium var. vagum (Jord.) Rouy & Foucaud, 1893 | Papaver erosulum Jord., 1861 | Papaver errabundum Jord., 1861 | Papaver erroneum Jord., 1861 | Papaver glaucioides Roux, 1879 | Papaver lamottei Boreau, 1857 | Papaver luteorubrum Jord., 1861 | Papaver maculosum Schur, 1866 | Papaver medium L., 1754 | Papaver modestum Jord., 1852 | Papaver obtusifolium auct. non Desf., 1798 | Papaver parviflorum Lam., 1779 | Papaver rhoeas subsp. dubium (L.) Schmalh. | Papaver turbinatum DC., 1821 | Papaver vagum Jord., 1861