Bromus porteri (J.M. Coult.) Nash in Bull. Torrey Bot. Club 22(12): 512. 1895 sec. Dávila & al. 2006
- ≡Bromus kalmii var. porteri J.M. Coult., Man. Bot. Rocky Mt.: 425. 1885 syn. sec. Dávila & al. 2006
- =Bromus ciliatus var. porteri (J.M. Coult.) Rydb. in Contr. U.S. Natl. Herb. 3(3): 192. 1895 syn. sec. Dávila & al. 2006
- =Bromus ciliatus var. montanus Vasey ex Beal, Grass. N. Amer. 2: 619. 1896 syn. sec. Dávila & al. 2006
- =Bromus ciliatus var. scariosus Scribn. in Bull. Div. Agrostol., U.S.D.A. 13: 46. 1898 syn. sec. Dávila & al. 2006
- =Bromus scabratus Scribn. in Bull. Div. Agrostol., U.S.D.A. 13: 46. 1898 syn. sec. Dávila & al. 2006
- =Bromus kalmii var. major Vasey ex Shear in Bull. Div. Agrostol., U.S.D.A. 23: 35. 1900 syn. sec. Dávila & al. 2006
- =Bromus porteri var. frondosus Shear in Bull. Div. Agrostol., U.S.D.A. 23: 37, f. 20. 1900 syn. sec. Dávila & al. 2006
- =Bromopsis frondosa (Shear) Holub in Folia Geobot. Phytotax. 8(2): 167. 1973 syn. sec. Dávila & al. 2006
- =Bromopsis porteri (J.M. Coult.) Holub in Folia Geobot. Phytotax. 8(2): 168. 1973 syn. sec. Dávila & al. 2006