| Code | Region | Status | Source |
| Ab |
Azerbaijan |
introduced |
Calculated
|
| Ab(A) |
Azerbaijan |
introduced |
Reference
|
| Ar |
Armenia |
introduced |
Reference
|
| Bu |
Bulgaria |
introduced: adventitious (casual) |
Reference
|
| Cg |
Montenegro |
introduced |
Reference
|
| Eg |
Egypt |
introduced: reported in error |
Reference
|
| Gg |
Georgia |
introduced |
Reference
|
| Gg |
Georgia |
introduced |
Calculated
|
| Gg(A) |
Abkhazia |
introduced |
Reference
|
| Hs |
Spain |
introduced: adventitious (casual) |
Reference
|
| Hs(S) |
Spain |
introduced: reported in error |
Reference
|
| Hu |
Hungary |
introduced |
Reference
|
| It |
Italy |
introduced: naturalized |
Reference
|
| Ju |
Former Jugoslavia |
introduced |
Calculated
|
| Ju |
Former Jugoslavia |
introduced: naturalized |
Reference
|
| Mk |
The former Jugoslav Republic of Makedonija |
introduced |
Reference
|
| Rf |
The Russian Federation |
introduced |
Calculated
|
| Rf(S) |
South European Russia |
introduced |
Reference
|
| Rm |
Romania |
introduced |
Reference
|
| Sr |
Serbia including Kosovo and Vojvodina |
introduced |
Reference
|
| Tcs |
Transcaucasia (Azerbaijan, Armenia, and Georgia) |
introduced |
Calculated
|
| Tu |
Turkey |
introduced: presence questionable |
Calculated
|
| Tu(A) |
Asiatic Turkey |
introduced: presence questionable |
Reference
|
| Uk |
Ukraine |
introduced |
Reference
|