| Code | Region | Status | Source |
| AE |
East Aegean Islands |
introduced: naturalized |
Calculated
|
| AE(G) |
Greek East Aegean Islands |
introduced: naturalized |
Reference
|
| Al |
Albania |
introduced |
Reference
|
| Ar |
Armenia |
introduced |
Reference
|
| Be |
Belgium with Luxembourg |
introduced: adventitious (casual) |
Reference
|
| Be(B) |
Belgium |
introduced: adventitious (casual) |
Reference
|
| Be(L) |
Luxembourg |
introduced: adventitious (casual) |
Reference
|
| BH |
Bosnia-Herzegovina |
introduced: naturalized |
Reference
|
| Bl |
Baleares |
introduced |
Calculated
|
| Bl(M) |
Mallorca |
introduced |
Reference
|
| Br |
Great Britain |
introduced: adventitious (casual) |
Reference
|
| Ca |
Canary Is. |
introduced: naturalized |
Calculated
|
| Ca(C) |
Gran Canaria |
introduced: naturalized |
Reference
|
| Ca(G) |
Gomera |
introduced: naturalized |
Reference
|
| Ca(P) |
La Palma |
introduced: naturalized |
Reference
|
| Ca(T) |
Tenerife |
introduced: naturalized |
Reference
|
| Cg |
Montenegro |
introduced: naturalized |
Reference
|
| Co |
Corse |
introduced: adventitious (casual) |
Reference
|
| Cr |
Kriti with Karpathos, Kasos & Gavdhos |
introduced: naturalized |
Reference
|
| Ct |
Croatia |
introduced |
Reference
|
| Ct |
Croatia |
introduced: adventitious (casual) |
Reference
|
| Cy |
Cyprus |
introduced |
Reference
|
| Cy |
Cyprus |
introduced: naturalized |
Reference
|
| Eg |
Egypt |
introduced: naturalized |
Reference
|
| Ga |
France |
introduced: adventitious (casual) |
Calculated
|
| Ga(F) |
France |
introduced: adventitious (casual) |
Reference
|
| Gg |
Georgia |
introduced: naturalized |
Reference
|
| Gr |
Greece |
introduced |
Reference
|
| Hs |
Spain |
introduced: naturalized |
Calculated
|
| Hs(S) |
Spain |
introduced: naturalized |
Reference
|
| Hu |
Hungary |
introduced: adventitious (casual) |
Reference
|
| IJ |
Israel-Jordan |
introduced: adventitious (casual) |
Calculated
|
| Ir |
Israel |
introduced: adventitious (casual) |
Reference
|
| It |
Italy |
introduced: naturalized |
Reference
|
| Ju |
Former Jugoslavia |
introduced: naturalized |
Reference
|
| Ju |
Former Jugoslavia |
introduced: naturalized |
Calculated
|
| Le |
Lebanon |
introduced: naturalized |
Reference
|
| LS |
Lebanon-Syria |
introduced: naturalized |
Calculated
|
| Ma |
Morocco |
introduced: adventitious (casual) |
Reference
|
| Md |
Madeira |
introduced: adventitious (casual) |
Calculated
|
| Md(M) |
Madeira |
introduced: adventitious (casual) |
Reference
|
| Mk |
The former Jugoslav Republic of Makedonija |
introduced: naturalized |
Reference
|
| No |
Norway |
introduced: adventitious (casual) |
Reference
|
| Rf |
The Russian Federation |
introduced |
Calculated
|
| Rf(E) |
Eastern European Russia |
introduced |
Reference
|
| Si(S) |
Sicily |
introduced: naturalized |
Reference
|
| Sl |
Slovenia |
introduced |
Reference
|
| Sy |
Syria |
introduced: naturalized |
Reference
|
| Tcs |
Transcaucasia (Azerbaijan, Armenia, and Georgia) |
introduced: naturalized |
Calculated
|
| Tu |
Turkey |
introduced |
Calculated
|
| Tu(A) |
Asiatic Turkey |
introduced |
Reference
|