| Rhamnus
cathartica
L. common buckthorn Invasive |
                                      
|
| Rhamnus
frangula
L. = Frangula alnus P. Miller glossy buckthorn Invasive |
                                 
|
| Rhamnus
frangula 'Asplenifolia'
= Frangula alnus 'Asplenifolia' narrow-leaved cultivar of glossy buckthorn Invasive |
   
|