| Cynanchum
louiseae
Kartez et Ghandi = C. nigrum (L.) Pers. black swallowwort Invasive |
                     
|
| Cynanchum
rossicum
(Kleopov) Borhidi pale swallowwort Invasive |
             
|
| Cynanchum
vincetoxicum
(L.) Pers. = Vincetoxicum hirundinaria Medik. white swallowwort Introduced |
    
|