| 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
|