Synonyms: Papaver agrivagum; Papaver ameristophyllum; Papaver arvaticum; Papaver arvense (heterotypic); Papaver atropurpureum; Papaver caespitosum; Papaver caudatifolium; Papaver cereale; Papaver chanceliae; Papaver cruciatum; Papaver dodonei; Papaver erraticum; Papaver erucifolium; Papaver fuchsii; Papaver graecum (homotypic); Papaver hirtodubium; Papaver insignitum; Papaver integrifolium; Papaver intermedium (heterotypic); Papaver montenegrinum; Papaver pseudohaussknechtii; Papaver rapiferum; Papaver rhoeas caudatifolium; Papaver rhoeas f. albiflorum; Papaver rhoeas f. elatius; Papaver rhoeas f. pseudostrigosum; Papaver rhoeas insignitum; Papaver rhoeas intermedium (heterotypic); Papaver rhoeas leucanthum; Papaver rhoeas trilobum; Papaver rhoeas var. agrivagum; Papaver rhoeas var. albiflorum; Papaver rhoeas var. alleizettei; Papaver rhoeas var. arvaticum; Papaver rhoeas var. caudatifolium; Papaver rhoeas var. chanceliae; Papaver rhoeas var. chelidonioides; Papaver rhoeas var. cruciatum; Papaver rhoeas var. dodonaei; Papaver rhoeas var. erraticum; Papaver rhoeas var. erucifolium; Papaver rhoeas var. glabellum; Papaver rhoeas var. himerense; Papaver rhoeas var. hispidissimum; Papaver rhoeas var. hispidum; Papaver rhoeas var. intermedium; Papaver rhoeas var. minus; Papaver rhoeas var. omphalophorum; Papaver rhoeas var. pallidum; Papaver rhoeas var. ramosum; Papaver rhoeas var. roubiaei; Papaver rhoeas var. rumelicum; Papaver rhoeas var. segetale; Papaver rhoeas var. simplex; Papaver rhoeas var. subintegrum; Papaver rhoeas var. submamillatum; Papaver rhoeas var. tenuifolium; Papaver rhoeas var. trichocarpum; Papaver rhoeas var. tricolor; Papaver rhoeas var. trifidum; Papaver rhoeas var. umbilicato-substipitatum; Papaver rhoeas var. umbilicosubstipitatum; Papaver rhoeas var. urophyllum; Papaver rhoeas var. vestitum; Papaver rhoeas var. vulgaris; Papaver robertianella; Papaver roubiaei; Papaver rumelicum; Papaver rusticum; Papaver segetale; Papaver segetale var. rhoeas; Papaver strigosum f. remotilobum; Papaver strigosum var. umbiliciferum; Papaver subumbilicatum; Papaver syriacum (heterotypic); Papaver tenuissimum; Papaver trilobum; Papaver uniflorum (homotypic); Papaver vesianii