Rare herbs and semiwoody plants for flora of Tbilisi environs (East Georgia, South Caucasus)

Abstract

Herbaceous and semiwoody rare plants for Tbilisi environs were study. There are identified 112 rare plants, the distribution area and number of which are restricted in the vicinity of Tbilisi. They are of different bio-ecologies and characteristic plant of various ecosystems. Important part of species widespread in Georgia and they do not belong to the rare plants of Georgia. Their distribution in Tbilisi environs is due to various ecological factors. However, 23 species are rare plants not only for Tbilisi environs, but also for the flora of Georgia. Main distribution area of 13 species covers the vicinity of Tbilisi and they are not spread in other regions of Georgia or are very rare. Twenty-nine species are endemics of Caucasus, 5 of which are endemics to Georgia. List of 122 herbaceous and semiwoody rare species for Tbilisi environs identified by us are given below. Distribution area and habitats in Tbilisi environs for each species are given. Endemics of Caucasus and Georgia and life forms are indicated.