| Code | Region | Status | Source | 
						
							
								| Ab | Azerbaijan | native | Calculated | 
						
							
								| Ab(A) | Azerbaijan | native | Reference | 
						
							
								| Ab(N) | Nakhichevan | native | Reference | 
						
							
								| AE | East Aegean Islands | native | Calculated | 
						
							
								| AE | East Aegean Islands | native | Reference | 
						
							
								| AE(G) | Greek East Aegean Islands | native | Reference | 
						
							
								| Ag | Algeria | native | Reference | 
						
							
								| Ar | Armenia | native | Reference | 
						
							
								| Au | Austria with Liechtenstein | native | Reference | 
						
							
								| Au(A) | Austria | native | Reference | 
						
							
								| Be | Belgium with Luxembourg | native | Reference | 
						
							
								| Be(B) | Belgium | native | Reference | 
						
							
								| Be(L) | Luxembourg | native | Reference | 
						
							
								| BH | Bosnia-Herzegovina | native | Reference | 
						
							
								| Bl | Baleares | native: presence questionable | Calculated | 
						
							
								| Bl | Baleares | native | Reference | 
						
							
								| Bl(M) | Mallorca | native: presence questionable | Reference | 
						
							
								| Br | Great Britain | native | Reference | 
						
							
								| Bu | Bulgaria | native | Reference | 
						
							
								| Ca | Canary Is. | native: doubtfully native | Calculated | 
						
							
								| Ca | Canary Is. | native | Reference | 
						
							
								| Ca(C) | Gran Canaria | native: doubtfully native | Reference | 
						
							
								| Ca(G) | Gomera | native: doubtfully native | Reference | 
						
							
								| Ca(H) | Hierro | native: doubtfully native | Reference | 
						
							
								| Ca(L) | Lanzarote with Graciosa | native: doubtfully native | Reference | 
						
							
								| Ca(P) | La Palma | native: doubtfully native | Reference | 
						
							
								| Ca(T) | Tenerife | native: doubtfully native | Reference | 
						
							
								| Cg | Montenegro | native | Reference | 
						
							
								| Co | Corse | native | Reference | 
						
							
								| Cr | Kriti with Karpathos, Kasos & Gavdhos | native: presence questionable | Reference | 
						
							
								| Cs | Czech Republic | native | Reference | 
						
							
								| Cs | Czech Republic | native | Reference | 
						
							
								| Ct | Croatia | native | Reference | 
						
							
								| Da | Denmark with Bornholm | native | Reference | 
						
							
								| Es | Estonia | native | Reference | 
						
							
								| Ga | France | native | Calculated | 
						
							
								| Ga(C) | Channel Is. | native | Reference | 
						
							
								| Ga(F) | France | native | Reference | 
						
							
								| Ge | Germany | native | Reference | 
						
							
								| Gg | Georgia | native | Reference | 
						
							
								| Gg | Georgia | native | Calculated | 
						
							
								| Gg(D) | Adzaria | native | Reference | 
						
							
								| Gg(G) | Georgia | native | Reference | 
						
							
								| Gr | Greece | native | Reference | 
						
							
								| He | Switzerland | native | Reference | 
						
							
								| Ho | Netherlands | native | Reference | 
						
							
								| Hs | Spain | native | Reference | 
						
							
								| Hs | Spain | native | Calculated | 
						
							
								| Hs(S) | Spain | native | Reference | 
						
							
								| Hu | Hungary | native | Reference | 
						
							
								| IJ | Israel-Jordan | native: reported in error | Reference | 
						
							
								| It | Italy | native | Reference | 
						
							
								| Ju | Former Jugoslavia | native | Reference | 
						
							
								| Ju | Former Jugoslavia | native | Calculated | 
						
							
								| Lu | Portugal | native | Reference | 
						
							
								| Ma | Morocco | native: reported in error | Reference | 
						
							
								| Mo | Moldova | native | Reference | 
						
							
								| Po | Poland | native | Reference | 
						
							
								| Rf | The Russian Federation | native | Calculated | 
						
							
								| Rf(C) | Central European Russia | native | Reference | 
						
							
								| Rf(CS) | North Caucasus | native | Reference | 
						
							
								| Rf(E) | Eastern European Russia | native | Reference | 
						
							
								| Rf(S) | South European Russia | native | Reference | 
						
							
								| Rm | Romania | native | Reference | 
						
							
								| Si(S) | Sicily | native: presence questionable | Reference | 
						
							
								| Sk | Slovakia | native | Reference | 
						
							
								| Sl | Slovenia | native | Reference | 
						
							
								| Sr | Serbia including Kosovo and Vojvodina | native | Reference | 
						
							
								| Su | Sweden | introduced | Reference | 
						
							
								| Tcs | Transcaucasia (Azerbaijan, Armenia, and Georgia) | native | Calculated | 
						
							
								| Tu | Turkey | native | Calculated | 
						
							
								| Tu(A) | Asiatic Turkey | native | Reference | 
						
							
								| Tu(E) | Turkey-in-Europe | native | Reference | 
						
							
								| Uk | Ukraine | native | Reference | 
						
							
								| Uk | Ukraine | native | Calculated | 
						
							
								| Uk(K) | Crimea | native | Reference |