| Code | Region | Status | Source |
| Ab |
Azerbaijan |
native |
Calculated
|
| Ab(A) |
Azerbaijan |
native |
Reference
|
| Ab(N) |
Nakhichevan |
native |
Reference
|
| AE |
East Aegean Islands |
native |
Calculated
|
| AE(G) |
Greek East Aegean Islands |
native |
Reference
|
| Ar |
Armenia |
native |
Reference
|
| Be(B) |
Belgium |
introduced: adventitious (casual) |
Reference
|
| By |
Belarus |
introduced |
Reference
|
| Fe |
Finland with Ahvenanmaa |
introduced: adventitious (casual) |
Reference
|
| Ge |
Germany |
introduced: adventitious (casual) |
Reference
|
| Gg |
Georgia |
native |
Reference
|
| IJ |
Israel-Jordan |
native |
Calculated
|
| Ir |
Israel |
native: reported in error |
Reference
|
| Jo |
Jordan |
native |
Reference
|
| Le |
Lebanon |
native |
Reference
|
| LS |
Lebanon-Syria |
native |
Calculated
|
| Rf |
The Russian Federation |
introduced |
Calculated
|
| Rf(C) |
Central European Russia |
introduced |
Reference
|
| Su |
Sweden |
introduced: adventitious (casual) |
Reference
|
| Sy |
Syria |
native |
Reference
|
| Tcs |
Transcaucasia (Azerbaijan, Armenia, and Georgia) |
native |
Calculated
|
| Tu |
Turkey |
native |
Calculated
|
| Tu(A) |
Asiatic Turkey |
native |
Reference
|