| Code | Region | Status | Source | 
						
							
								| Ag | Algeria | introduced: adventitious (casual) | Reference | 
						
							
								| Ag | Algeria | introduced: naturalized | Reference | 
						
							
								| Al | Albania | introduced: adventitious (casual) | Reference | 
						
							
								| Au | Austria with Liechtenstein | introduced | Reference | 
						
							
								| Au(A) | Austria | native: formerly native | Reference | 
						
							
								| Au(L) | Liechtenstein | native: formerly native | Reference | 
						
							
								| Be(B) | Belgium | native: formerly native | Reference | 
						
							
								| Be(L) | Luxembourg | native: formerly native | Reference | 
						
							
								| Bu | Bulgaria | introduced | Reference | 
						
							
								| Bu | Bulgaria | introduced: naturalized | Reference | 
						
							
								| By | Belarus | introduced | Reference | 
						
							
								| Ca | Canary Is. | introduced: adventitious (casual) | Reference | 
						
							
								| Co | Corse | introduced: naturalized | Reference | 
						
							
								| Cs | Czech Republic | introduced | Reference | 
						
							
								| Cy | Cyprus | introduced: presence questionable | Reference | 
						
							
								| Eg | Egypt | introduced: adventitious (casual) | Reference | 
						
							
								| Eg | Egypt | introduced: naturalized | Reference | 
						
							
								| Es | Estonia | introduced | Reference | 
						
							
								| Fe | Finland with Ahvenanmaa | introduced | Reference | 
						
							
								| Ga | France | introduced: naturalized | Calculated | 
						
							
								| Ga(F) | France | introduced: naturalized | Reference | 
						
							
								| Ge | Germany | introduced | Reference | 
						
							
								| He | Switzerland | introduced | Reference | 
						
							
								| He | Switzerland | native: formerly native | Reference | 
						
							
								| Ho | Netherlands | introduced | Reference | 
						
							
								| Hs | Spain | introduced | Calculated | 
						
							
								| Hs | Spain | introduced: naturalized | Reference | 
						
							
								| Hs(S) | Spain | introduced | Reference | 
						
							
								| Hu | Hungary | introduced | Reference | 
						
							
								| IJ | Israel-Jordan | introduced | Calculated | 
						
							
								| IJ | Israel-Jordan | introduced: adventitious (casual) | Reference | 
						
							
								| Ir | Israel | introduced | Reference | 
						
							
								| It | Italy | introduced: naturalized | Reference | 
						
							
								| Jo | Jordan | introduced | Reference | 
						
							
								| Ju | Former Jugoslavia | introduced: naturalized | Reference | 
						
							
								| La | Latvia | introduced | Reference | 
						
							
								| Lt | Lithuania | introduced | Reference | 
						
							
								| Lu | Portugal | introduced: naturalized | Reference | 
						
							
								| Ma | Morocco | introduced: adventitious (casual) | Reference | 
						
							
								| Mo | Moldova | introduced | Reference | 
						
							
								| No | Norway | introduced | Reference | 
						
							
								| Po | Poland | introduced | Reference | 
						
							
								| Rf | The Russian Federation | introduced | Calculated | 
						
							
								| Rf(C) | Central European Russia | introduced | 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 | introduced | Reference | 
						
							
								| Rm | Romania | introduced | Reference | 
						
							
								| Sa | Sardegna | introduced: naturalized | Reference | 
						
							
								| Sa | Sardegna | introduced: naturalized | Reference | 
						
							
								| Si(S) | Sicily | introduced | Reference | 
						
							
								| Si(S) | Sicily | introduced: naturalized | Reference | 
						
							
								| Sk | Slovakia | introduced | Reference | 
						
							
								| Su | Sweden | introduced | Reference | 
						
							
								| Uk | Ukraine | introduced | Reference | 
						
							
								| Uk | Ukraine | introduced | Calculated | 
						
							
								| Uk(K) | Crimea | introduced: reported in error | Reference | 
						
							
								| Uk(K) | Crimea | introduced | Reference | 
						
							
								| Uk(U) | Ukraine | introduced | Reference |