Floristic and Habitat Diversity of the Trigrad Gorge Protected Area (Central Rhodopes Mts.), Bulgaria

A research was conducted regarding the vascular flora and natural habitats of the Trigrad Gorge Protected area, located in the Central Rhodopes Mts. The taxonomic spectrum of the researched flora includes 203 species, 166 genera and 60 families of vascular plants (including the moss species). Four types of natural habitats and their conservation status were determined: 08H38210. Calcareous rocky slopes with chasmophytic vegetation; 21G1 Supra Mediterranean hop- hornbeams woods; 9150. Medio-European limestone beech forests of the Cephalanthero-Fagion and 91EO. Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incane, Salicion albae).