Conspectus of trees and shrubs of Tbilisi environs (East Georgia, South Caucasus)

Floristic composition of Tbilisi environs trees and shrubs are studied. On the one hand, variety of physical-geographical conditions and ecosystem of Tbilisi, and on the other hand, its location conditioned either floristic or bioecological diversity of the trees and the shrubs. 177 species of trees and shrubs, belonging to 89 genera and 44 families, were recorded. 35 species of them are endemics of Caucasus and included in “Red List of the Endemic Plants of the Caucasus”. Among them 2 species are endemics of Georgia, which of them 1 is local endemic of Tbilisi environs. 18 species are plants of Red List of Georgia. Floristic composition is enriched with naturalized plants (28 species). Habitats and area of species in Tbilisi environs are established. The full list of the trees and shrubs of Tbilisi environs as a conspectus is given. The review of and vegetation of Tbilisi environs is attached to the article.