| Code | Region | Status | Source |
| Ab |
Azerbaijan |
native |
Calculated
|
| Ab(A) |
Azerbaijan |
native |
Reference
|
| AE |
East Aegean Islands |
native |
Reference
|
| Ag |
Algeria |
native |
Reference
|
| Al |
Albania |
native: doubtfully native |
Reference
|
| Ar |
Armenia |
native |
Reference
|
| Az |
Azores |
introduced |
Calculated
|
| Az(F) |
Faial |
introduced |
Reference
|
| BH |
Bosnia-Herzegovina |
native |
Reference
|
| Bl |
Baleares |
introduced: reported in error |
Reference
|
| Bu |
Bulgaria |
native |
Reference
|
| By |
Belarus |
introduced |
Reference
|
| Cg |
Montenegro |
native |
Reference
|
| Co |
Corse |
introduced: adventitious (casual) |
Reference
|
| Cr |
Kriti with Karpathos, Kasos & Gavdhos |
native: presence questionable |
Reference
|
| Cs |
Czech Republic |
introduced |
Reference
|
| Ct |
Croatia |
native |
Reference
|
| Eg |
Egypt |
native |
Reference
|
| Es |
Estonia |
introduced |
Reference
|
| Ga |
France |
introduced: naturalized |
Reference
|
| Ga |
France |
introduced: naturalized |
Calculated
|
| Ga(F) |
France |
introduced: naturalized |
Reference
|
| Ge |
Germany |
introduced |
Reference
|
| Gg |
Georgia |
native |
Reference
|
| Gg |
Georgia |
native |
Calculated
|
| Gg(A) |
Abkhazia |
native |
Reference
|
| Gg(G) |
Georgia |
native |
Reference
|
| Gr |
Greece |
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: naturalized |
Reference
|
| Ir |
Israel |
introduced |
Reference
|
| It |
Italy |
native |
Reference
|
| Ju |
Former Jugoslavia |
native |
Reference
|
| Ju |
Former Jugoslavia |
native |
Calculated
|
| La |
Latvia |
introduced |
Reference
|
| Lt |
Lithuania |
introduced |
Reference
|
| Lu |
Portugal |
introduced: naturalized |
Reference
|
| Ma |
Morocco |
introduced: adventitious (casual) |
Reference
|
| Mk |
The former Jugoslav Republic of Makedonija |
native |
Reference
|
| Mo |
Moldova |
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(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
|
| Sa |
Sardegna |
native |
Reference
|
| Si(M) |
Malta |
introduced: naturalized |
Reference
|
| Si(S) |
Sicily |
native |
Reference
|
| Sk |
Slovakia |
introduced |
Reference
|
| Sl |
Slovenia |
introduced |
Reference
|
| Sn |
Sinai |
native |
Reference
|
| Sr |
Serbia including Kosovo and Vojvodina |
introduced |
Reference
|
| Tcs |
Transcaucasia (Azerbaijan, Armenia, and Georgia) |
native |
Calculated
|
| Tn |
Tunisia |
introduced |
Reference
|
| Tn |
Tunisia |
introduced: adventitious (casual) |
Reference
|
| Tu |
Turkey |
native |
Calculated
|
| Tu(A) |
Asiatic Turkey |
native |
Reference
|
| Tu(E) |
Turkey-in-Europe |
native |
Reference
|
| Uk |
Ukraine |
native: reported in error |
Reference
|
| Uk(K) |
Crimea |
native: reported in error |
Reference
|