| Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | — | — | — | — |  | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | P. A. Rydberg 3305 | 08 Aug 1896 | United States of America | Montana | Sheep Creek | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | P. A. Rydberg 7612 | 08 Aug 1905 | United States of America | Utah | Fish Lake, around Twin Creeks | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | P. A. Rydberg 9179 | 24 Jul 1911 | United States of America | Utah | Meadow south of Monticello. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | P. A. Rydberg 1171 | 12 Jul 1892 | United States of America | South Dakota | Pennington Co. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | P. A. Rydberg 6572 | 14 Jul 1900 | United States of America | Nebraska | Kearney Co. Platte River | — |  |  |   |  |