| 
                                    Penstemon ellipticus J.M.Coult. & Fisher
                                 | 
                                M. Armstrong 569 | 
                                s.d. | 
                                Canada | 
                                Alberta | 
                                Lake Louise | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon procerus var. tolmiei (Hook.) Cronquist
                                 | 
                                M. Armstrong 505 | 
                                s.d. | 
                                United States of America | 
                                Washington | 
                                Mt. Rainier | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon humilis var. brevifolius A.Gray
                                 | 
                                M. Armstrong 362 | 
                                — | 
                                United States of America | 
                                Utah | 
                                Near Great Salt Lake | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon linarioides var. sileri A.Gray
                                 | 
                                M. Armstrong 178 | 
                                s.d. | 
                                United States of America | 
                                Arizona | 
                                Possibly from Grand Canyon | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon parryi (A.Gray) A.Gray
                                 | 
                                M. Armstrong 643 | 
                                s.d. | 
                                United States of America | 
                                Arizona | 
                                Tucson | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon laetus var. leptosepalus Greene ex A.Gray
                                 | 
                                M. Armstrong 368 | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Nevada Co. Grass Valley | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon cyananthus Hook. var. cyananthus
                                 | 
                                M. Armstrong 328 | 
                                s.d. | 
                                United States of America | 
                                Utah | 
                                Kaysville | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon perpulcher A.Nelson
                                 | 
                                M. Armstrong 959 | 
                                s.d. | 
                                United States of America | 
                                Idaho | 
                                Twin Falls | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Potentilla gracilis var. elmeri (Rydb.) Jeps.
                                 | 
                                M. Armstrong 338 | 
                                s.d. | 
                                United States of America | 
                                Utah | 
                                Hot Pots, Heber | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Camissonia claviformis var. cruciformis (Kellogg) Cronquist
                                 | 
                                M. Armstrong 948 | 
                                s.d. | 
                                United States of America | 
                                Nevada | 
                                Washoe Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Camissonia nevadensis (Kellogg) P.H.Raven
                                 | 
                                M. Armstrong 949 | 
                                s.d. | 
                                United States of America | 
                                Nevada | 
                                Washoe Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Castilleja angustifolia (Nutt.) G.Don
                                 | 
                                M. Armstrong 958 | 
                                s.d. | 
                                United States of America | 
                                Idaho | 
                                Twin Falls | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Arnica discoidea Benth.
                                 | 
                                M. Armstrong 471 | 
                                s.d. | 
                                United States of America | 
                                Oregon | 
                                Bald Butte, Hood River. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Arnica latifolia Bong.
                                 | 
                                M. Armstrong 483 | 
                                s.d. | 
                                United States of America | 
                                Washington | 
                                Mt. Rainier | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium arizonicum (A.Gray) Petr.
                                 | 
                                M. Armstrong 205 | 
                                s.d. | 
                                United States of America | 
                                Colorado | 
                                Grand Canon of Colorado, Ariz. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium brevistylum Cronquist
                                 | 
                                M. Armstrong 468 | 
                                s.d. | 
                                United States of America | 
                                Oregon | 
                                Parkdale | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium californicum A.Gray
                                 | 
                                M. Armstrong 729 | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Capistrano | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium occidentale (Nutt.) Jeps.
                                 | 
                                M. Armstrong 786 | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Delmar | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium occidentale (Nutt.) Jeps.
                                 | 
                                M. Armstrong 880 | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Francisco Co. Sea cliffs | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium occidentale var. candidissimum (Greene) J.F.Macbr.
                                 | 
                                M. Armstrong 398 | 
                                — | 
                                United States of America | 
                                California | 
                                Colfax. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium occidentale var. coulteri (Harv. & A.Gray) Jeps.
                                 | 
                                M. Armstrong 895 | 
                                — | 
                                United States of America | 
                                California | 
                                Mt. Diabolo. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cirsium
                                 | 
                                M. Armstrong 206 | 
                                — | 
                                United States of America | 
                                Arizona | 
                                Grand Cañon of Colorado. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Linnaea borealis var. longiflora Torr.
                                 | 
                                M. Armstrong 422 | 
                                — | 
                                United States of America | 
                                California | 
                                Siskiyou Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lupinus hirsutissimus Benth.
                                 | 
                                M. Armstrong 777 | 
                                — | 
                                United States of America | 
                                — | 
                                West American Plants. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lupinus lepidus var. sellulus (Kellogg) Barneby
                                 | 
                                M. Armstrong 429 | 
                                — | 
                                United States of America | 
                                California | 
                                Siskiyou Co. West American Plants.… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 |