| Code | Region | Status | Source | 
						
							
								| AE | East Aegean Islands | introduced | Calculated | 
						
							
								| AE(G) | Greek East Aegean Islands | introduced | Reference | 
						
							
								| Be | Belgium with Luxembourg | introduced: adventitious (casual) | Reference | 
						
							
								| Br | Great Britain | introduced: adventitious (casual) | Reference | 
						
							
								| Bu | Bulgaria | introduced: naturalized | Reference | 
						
							
								| Cg | Montenegro | introduced: adventitious (casual) | Reference | 
						
							
								| Ct | Croatia | introduced | Reference | 
						
							
								| Cy | Cyprus | introduced: adventitious (casual) | Reference | 
						
							
								| Es | Estonia | introduced: adventitious (casual) | Reference | 
						
							
								| Ga | France | introduced: naturalized | Calculated | 
						
							
								| Ga(F) | France | introduced: naturalized | Reference | 
						
							
								| Ge | Germany | introduced: adventitious (casual) | Reference | 
						
							
								| Gg | Georgia | introduced: naturalized | Reference | 
						
							
								| He | Switzerland | introduced: naturalized | Reference | 
						
							
								| Hs | Spain | introduced: adventitious (casual) | Calculated | 
						
							
								| Hs(S) | Spain | introduced: adventitious (casual) | Reference | 
						
							
								| Hu | Hungary | introduced: adventitious (casual) | Reference | 
						
							
								| It | Italy | introduced: naturalized | Reference | 
						
							
								| Ju | Former Jugoslavia | introduced: adventitious (casual) | Calculated | 
						
							
								| Ju | Former Jugoslavia | introduced: naturalized | Reference | 
						
							
								| Rf | The Russian Federation | introduced: adventitious (casual) | Calculated | 
						
							
								| Rf(C) | Central European Russia | introduced: adventitious (casual) | Reference | 
						
							
								| Rf(CS) | North Caucasus | introduced | Reference | 
						
							
								| Rf(E) | Eastern European Russia | introduced: adventitious (casual) | Reference | 
						
							
								| Rm | Romania | introduced: adventitious (casual) | Reference | 
						
							
								| Si(S) | Sicily | introduced: naturalized | Reference | 
						
							
								| Sl | Slovenia | introduced | Reference | 
						
							
								| Tcs | Transcaucasia (Azerbaijan, Armenia, and Georgia) | introduced: naturalized | Calculated |