Phytogeographically, Bosnia and Herzegovina belongs to the Boreal Kingdom and is shared between the Illyrian province of the Circumboreal Region and Adriatic province of the Mediterranean Region. According to the World Wide Fund for Nature (WWF), the territory of Bosnia and Herzegovina can be subdivided into four ecoregions: Balkan mixed forests, Dinaric Mountains mixed forests, Pannonian mixed forests and Illyrian deciduous forests. The country had a 2018 Forest Landscape Integrity Index mean score of 5.99/10, ranking it 89th globally out of 172 countries.