| Code | Region | Status | Source |
| AE |
East Aegean Islands |
native: presence questionable |
Calculated
|
| AE(G) |
Greek East Aegean Islands |
native: presence questionable |
Reference
|
| Al |
Albania |
native |
Reference
|
| Au |
Austria with Liechtenstein |
native |
Reference
|
| Au(A) |
Austria |
native |
Reference
|
| Az |
Azores |
native: doubtfully native |
Calculated
|
| Az(C) |
Corvo |
native: doubtfully native |
Reference
|
| Az(F) |
Faial |
native: doubtfully native |
Reference
|
| Az(G) |
Graciosa |
native: doubtfully native |
Reference
|
| Az(J) |
São Jorge |
native: doubtfully native |
Reference
|
| Az(L) |
Flores |
native: doubtfully native |
Reference
|
| Az(M) |
São Miguel |
native: doubtfully native |
Reference
|
| Az(P) |
Pico |
native: doubtfully native |
Reference
|
| Az(S) |
Santa Maria |
native: doubtfully native |
Reference
|
| Az(T) |
Terceira |
native: doubtfully native |
Reference
|
| Be |
Belgium with Luxembourg |
native |
Reference
|
| Be(L) |
Luxembourg |
native |
Reference
|
| Bl |
Baleares |
native: reported in error |
Reference
|
| Br |
Great Britain |
native |
Reference
|
| Bu |
Bulgaria |
native |
Reference
|
| By |
Belarus |
native |
Reference
|
| Co |
Corse |
native |
Reference
|
| Cs |
Czech Republic |
native |
Reference
|
| Ct |
Croatia |
native |
Reference
|
| Da |
Denmark with Bornholm |
introduced |
Reference
|
| EM |
Euro+Med |
endemic for EM |
Reference
|
| Ga |
France |
native |
Calculated
|
| Ga(C) |
Channel Is. |
native |
Reference
|
| Ga(F) |
France |
native |
Reference
|
| Ge |
Germany |
native |
Reference
|
| Gr |
Greece |
native |
Reference
|
| Hb |
Ireland |
native |
Reference
|
| Hb |
Ireland |
native |
Calculated
|
| Hb(E) |
Ireland |
native |
Reference
|
| Hb(N) |
Northern Ireland |
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: formerly native |
Reference
|
| It |
Italy |
native |
Reference
|
| Ju |
Former Jugoslavia |
native |
Reference
|
| Ju |
Former Jugoslavia |
native |
Calculated
|
| Lu |
Portugal |
native |
Reference
|
| Po |
Poland |
native |
Reference
|
| Rm |
Romania |
native |
Reference
|
| Sa |
Sardegna |
native: reported in error |
Reference
|
| Si(S) |
Sicily |
native: reported in error |
Reference
|
| Sk |
Slovakia |
native |
Reference
|
| Sl |
Slovenia |
native |
Reference
|
| Su |
Sweden |
introduced |
Reference
|
| Tu |
Turkey |
native |
Calculated
|
| Tu(E) |
Turkey-in-Europe |
native |
Reference
|
| Uk |
Ukraine |
introduced: adventitious (casual) |
Calculated
|
| Uk(K) |
Crimea |
introduced: adventitious (casual) |
Reference
|