| R. arboreum ssp arboreum 'Doctor Bowman'Rhododendron Species SelectionSelected By: Tuomala, C. , Fort Bragg, CA , USA 
            
                Subgenus: 
                
                        Hymenanthes
                    
                 |   | 
| R. arboreum ssp arboreum 'Doctor Bowman'Rhododendron Species SelectionSelected By: Tuomala, C. , Fort Bragg, CA , USA 
            
                Subgenus: 
                
                        Hymenanthes
                    
                 |   |