| Code | Region | Status | Source | 
						
							
								| Ab | Azerbaijan | native: presence questionable | Calculated | 
						
							
								| Ab(A) | Azerbaijan | native: presence questionable | Reference | 
						
							
								| AE | East Aegean Islands | native | Calculated | 
						
							
								| AE(G) | Greek East Aegean Islands | native | Reference | 
						
							
								| Au | Austria with Liechtenstein | native | Reference | 
						
							
								| Au(A) | Austria | introduced: adventitious (casual) | Reference | 
						
							
								| Au(A) | Austria | native | Reference | 
						
							
								| Be | Belgium with Luxembourg | introduced: adventitious (casual) | Reference | 
						
							
								| Be(B) | Belgium | introduced: adventitious (casual) | Reference | 
						
							
								| BH | Bosnia-Herzegovina | native | Reference | 
						
							
								| Br | Great Britain | introduced: adventitious (casual) | Reference | 
						
							
								| Bu | Bulgaria | native | Reference | 
						
							
								| By | Belarus | introduced | Reference | 
						
							
								| Cg | Montenegro | native | Reference | 
						
							
								| Cs | Czech Republic | native | Reference | 
						
							
								| Ct | Croatia | native | Reference | 
						
							
								| EM | Euro+Med | endemic for EM | Reference | 
						
							
								| Ga | France | introduced: adventitious (casual) | Calculated | 
						
							
								| Ga(F) | France | introduced: adventitious (casual) | Reference | 
						
							
								| Ge | Germany | native | Reference | 
						
							
								| Gr | Greece | native | Reference | 
						
							
								| Hu | Hungary | native | Reference | 
						
							
								| It | Italy | introduced: adventitious (casual) | Reference | 
						
							
								| Ju | Former Jugoslavia | native | Reference | 
						
							
								| Ju | Former Jugoslavia | native | Calculated | 
						
							
								| La | Latvia | introduced: adventitious (casual) | Reference | 
						
							
								| Lt | Lithuania | introduced: adventitious (casual) | Reference | 
						
							
								| Mk | The former Jugoslav Republic of Makedonija | native | Reference | 
						
							
								| Mo | Moldova | native | Reference | 
						
							
								| No | Norway | introduced | Reference | 
						
							
								| Po | Poland | introduced: naturalized | Reference | 
						
							
								| Rf | The Russian Federation | native | Calculated | 
						
							
								| Rf(C) | Central European Russia | introduced | Reference | 
						
							
								| Rf(CS) | North Caucasus | native | Reference | 
						
							
								| Rf(E) | Eastern European Russia | introduced | Reference | 
						
							
								| Rf(K) | Kaliningrad | introduced | Reference | 
						
							
								| Rf(N) | Northern European Russia | introduced | Reference | 
						
							
								| Rf(NW) | Northwest European Russia | introduced | Reference | 
						
							
								| Rf(S) | South European Russia | native | Reference | 
						
							
								| Rm | Romania | native | Reference | 
						
							
								| Sk | Slovakia | introduced | Reference | 
						
							
								| Sk | Slovakia | native | Reference | 
						
							
								| Sl | Slovenia | native | Reference | 
						
							
								| Sr | Serbia including Kosovo and Vojvodina | native | Reference | 
						
							
								| Tcs | Transcaucasia (Azerbaijan, Armenia, and Georgia) | native: presence questionable | Calculated | 
						
							
								| Tu | Turkey | native | Calculated | 
						
							
								| Tu(E) | Turkey-in-Europe | native | Reference | 
						
							
								| Uk | Ukraine | native | Reference | 
						
							
								| Uk | Ukraine | native | Calculated | 
						
							
								| Uk(K) | Crimea | native | Reference | 
						
							
								| Uk(U) | Ukraine | native | Reference |