Bromus rigidus Roth in Bot. Mag. (Römer & Usteri) 4(10): 21. 1790 sec. Dávila & al. 2006
- =Bromus villosus Forssk., Fl. Aegypt.-Arab.: 23. 1775 syn. sec. Dávila & al. 2006
- =Bromus rigidus Roth var. rigidus in Bot. Mag. (Römer & Usteri) 4(10): 21. 1790 syn. sec. Dávila & al. 2006
- =Bromus madritensis var. maximus (Desf.) St.-Amans, Fl. Agen.: 45. 1821 syn. sec. Dávila & al. 2006
- =Bromus rubens var. rigidus (Roth) Mutel, Fl. Franc. 4: 133. 1837 syn. sec. Dávila & al. 2006
- =Genea maxima (Desf.) Dumort. in Bull. Soc. Roy. Bot. Belgique 7: 67. 1868 syn. sec. Dávila & al. 2006
- =Bromus madritensis var. rigidus (Roth) Bab. ex Syme, Engl. Bot. (ed. 3b) 11: 161. 1873 syn. sec. Dávila & al. 2006
- =Bromus villosus var. rigidus (Roth) Asch. & Graebn., Syn. Mitteleur. Fl. 2: 596. 1901 syn. sec. Dávila & al. 2006
- =Bromus rigidus subsp. maximus (Desf.) Rothm. & P. Silva in Agron. Lusit. 1: 248. 1939 syn. sec. Dávila & al. 2006
- =Zerna gussonei (Parl.) Grossh., Akad. Nauk. U.S.S.R. Bot. Inst. Trudy Azerbaidzh. Fil. 8: 305. 1939 syn. sec. Dávila & al. 2006
- =Bromus diandrus subsp. maximus (Desf.) Soó in Acta Geol. Acad. Sci. Hung. 3: 48. 1940 syn. sec. Dávila & al. 2006
- =Bromus diandrus var. rigidus (Roth) Sales in Edinburgh J. Bot. 50(1): 9. 1993 syn. sec. Dávila & al. 2006