| Code | Region | Status | Source |
| Al |
Albania |
introduced |
Reference
|
| Ar |
Armenia |
introduced |
Reference
|
| Au |
Austria with Liechtenstein |
introduced |
Reference
|
| Au(A) |
Austria |
introduced |
Reference
|
| Au(A) |
Austria |
introduced: naturalized |
Reference
|
| Au(A) |
Austria |
introduced: naturalized |
Calculated
|
| Au(L) |
Liechtenstein |
introduced: naturalized |
Calculated
|
| Au(L) |
Liechtenstein |
introduced: naturalized |
Reference
|
| Be |
Belgium with Luxembourg |
introduced |
Reference
|
| Be |
Belgium with Luxembourg |
introduced: naturalized |
Reference
|
| Be |
Belgium with Luxembourg |
introduced: naturalized |
Calculated
|
| Be(B) |
Belgium |
introduced |
Reference
|
| Be(L) |
Luxembourg |
introduced: adventitious (casual) |
Calculated
|
| Be(L) |
Luxembourg |
introduced: naturalized |
Reference
|
| BH |
Bosnia-Herzegovina |
introduced: naturalized |
Reference
|
| Br |
Great Britain |
introduced |
Reference
|
| Br |
Great Britain |
introduced: naturalized |
Calculated
|
| Bu |
Bulgaria |
introduced |
Reference
|
| By |
Belarus |
introduced |
Reference
|
| By |
Belarus |
introduced |
Calculated
|
| Cg |
Montenegro |
introduced |
Reference
|
| Co |
Corse |
introduced: adventitious (casual) |
Reference
|
| Cs |
Czech Republic |
introduced: naturalized |
Calculated
|
| Cs |
Czech Republic |
introduced: naturalized |
Reference
|
| Ct |
Croatia |
introduced |
Reference
|
| Ct |
Croatia |
introduced |
Calculated
|
| Ct |
Croatia |
introduced: naturalized |
Reference
|
| Da |
Denmark with Bornholm |
introduced |
Reference
|
| Es |
Estonia |
introduced: presence questionable |
Reference
|
| Es |
Estonia |
introduced |
Calculated
|
| Ga |
France |
introduced: naturalized |
Calculated
|
| Ga |
France |
introduced: naturalized |
Calculated
|
| Ga(F) |
France |
introduced |
Reference
|
| Ga(F) |
France |
introduced: naturalized |
Reference
|
| Ga(F) |
France |
introduced: naturalized |
Calculated
|
| Ge |
Germany |
introduced |
Reference
|
| Ge |
Germany |
introduced: naturalized |
Reference
|
| Ge |
Germany |
introduced: naturalized |
Calculated
|
| Gg |
Georgia |
introduced |
Reference
|
| Gr |
Greece |
introduced |
Reference
|
| Hb |
Ireland |
introduced: adventitious (casual) |
Calculated
|
| Hb(E) |
Ireland |
introduced: adventitious (casual) |
Reference
|
| He |
Switzerland |
introduced: naturalized |
Reference
|
| He |
Switzerland |
introduced: naturalized |
Calculated
|
| Ho |
Netherlands |
introduced: naturalized |
Calculated
|
| Ho |
Netherlands |
introduced: naturalized |
Reference
|
| Hs |
Spain |
introduced |
Reference
|
| Hs |
Spain |
introduced: naturalized |
Calculated
|
| Hs |
Spain |
introduced: naturalized |
Calculated
|
| Hs(S) |
Spain |
introduced: naturalized |
Calculated
|
| Hs(S) |
Spain |
introduced: naturalized |
Reference
|
| Hu |
Hungary |
introduced |
Calculated
|
| Hu |
Hungary |
introduced: naturalized |
Reference
|
| It |
Italy |
introduced |
Calculated
|
| It |
Italy |
introduced: naturalized |
Reference
|
| Ju |
Former Jugoslavia |
introduced |
Reference
|
| Ju |
Former Jugoslavia |
introduced |
Calculated
|
| Ju |
Former Jugoslavia |
introduced: naturalized |
Calculated
|
| La |
Latvia |
introduced: presence questionable |
Reference
|
| La |
Latvia |
introduced |
Calculated
|
| Lt |
Lithuania |
introduced: adventitious (casual) |
Reference
|
| Lt |
Lithuania |
introduced: naturalized |
Calculated
|
| Mk |
The former Jugoslav Republic of Makedonija |
introduced |
Calculated
|
| Mk |
The former Jugoslav Republic of Makedonija |
introduced |
Reference
|
| Mo |
Moldova |
introduced |
Reference
|
| Mo |
Moldova |
introduced |
Calculated
|
| No |
Norway |
introduced: adventitious (casual) |
Reference
|
| Po |
Poland |
introduced: naturalized |
Reference
|
| Po |
Poland |
introduced: naturalized |
Calculated
|
| Rf |
The Russian Federation |
introduced: naturalized |
Calculated
|
| Rf |
The Russian Federation |
introduced: naturalized |
Calculated
|
| Rf(C) |
Central European Russia |
introduced |
Reference
|
| Rf(C) |
Central European Russia |
introduced |
Calculated
|
| Rf(CS) |
North Caucasus |
introduced |
Reference
|
| Rf(E) |
Eastern European Russia |
introduced |
Reference
|
| Rf(E) |
Eastern European Russia |
introduced |
Calculated
|
| Rf(K) |
Kaliningrad |
introduced: naturalized |
Reference
|
| Rf(N) |
Northern European Russia |
introduced |
Calculated
|
| Rf(NW) |
Northwest European Russia |
introduced |
Reference
|
| Rf(NW) |
Northwest European Russia |
introduced: naturalized |
Calculated
|
| Rf(S) |
South European Russia |
introduced |
Calculated
|
| Rm |
Romania |
introduced |
Reference
|
| Rm |
Romania |
introduced: adventitious (casual) |
Reference
|
| Rm |
Romania |
introduced: naturalized |
Calculated
|
| Si(S) |
Sicily |
introduced |
Calculated
|
| Si(S) |
Sicily |
introduced: naturalized |
Reference
|
| Sk |
Slovakia |
introduced |
Reference
|
| Sk |
Slovakia |
introduced: naturalized |
Reference
|
| Sk |
Slovakia |
introduced: naturalized |
Calculated
|
| Sl |
Slovenia |
introduced |
Calculated
|
| Sl |
Slovenia |
introduced |
Reference
|
| Sr |
Serbia including Kosovo and Vojvodina |
introduced |
Calculated
|
| Sr |
Serbia including Kosovo and Vojvodina |
introduced: naturalized |
Reference
|
| Su |
Sweden |
introduced |
Reference
|
| Su |
Sweden |
introduced: adventitious (casual) |
Calculated
|
| Su |
Sweden |
introduced: naturalized |
Reference
|
| Tcs |
Transcaucasia (Azerbaijan, Armenia, and Georgia) |
introduced |
Calculated
|
| Tu |
Turkey |
introduced |
Calculated
|
| Tu(A) |
Asiatic Turkey |
introduced |
Reference
|
| Uk |
Ukraine |
introduced: naturalized |
Reference
|
| Uk |
Ukraine |
introduced: naturalized |
Calculated
|
| Uk |
Ukraine |
introduced: naturalized |
Calculated
|
| Uk(K) |
Crimea |
introduced: naturalized |
Calculated
|
| Uk(K) |
Crimea |
introduced: naturalized |
Reference
|
| Uk(U) |
Ukraine |
introduced |
Reference
|
| Uk(U) |
Ukraine |
introduced |
Calculated
|