Southeast Europe
This concept is based on the boundaries of the Balkan peninsula. The countries that have been described as being entirely within the region are: Albania, Kosovo, Bosnia and Herzegovina, Bulgaria, Macedonia and Montenegro.
List of Balkan endemic plants
The next review of endemic plants on the Balkans includes all known taxa of these categories, from Greek (including Pindus mountain system), Albania, Kosovo, Macedonia, Serbia, Bosnia and Herzegovina, Montenegro, Croatia and Slovenia. Northeast border goes mainly along the valley of the river Sava and continues along the Danube and including most of the Bulgaria, and to the southeast to the European part of Turkey. Also included Pannonian zone to steps areas geographical boundaries of the Balkans of the southern part of the Romania.