Phytocenotic practicance of Oxytropis candicans (Pall.) DC. (Fabaceae) in Central Yakutia

The materials are given on the study of steppe, meadow and forest communities with the participa- tion of Oxytropis candicans. The goal is to study ecological and phytocenotic status of Oxytropis candicans in Central Yakutia. Oxytropis candicans is endemic of Middle and Eastern Siberia. In Yakutia along the river Lenа it is met up to the city of Yakutsk; there are collections from the neighbor- hood village Ugolnaya Zyryanka in the Kolyma. Botanical description of 9 communities is given, their floral composition is studied. The analysis of species composition of communities with the partic- ipation of O. candicans has shown that 62 species grow together with Oxytropis candicans. Oxytropis candicans is a component of steppe, dry meadow, forest and opus communities of Central Yakutia.O. candicans is mezoxerophyte, in relation to light is heliophyte, but well tolerates slight shading, as evidenced by its growth at the edges, as well as under the canopy of light pine forests...