The diversity of a flora of Kazakhstan considerably varies both by structure and number of various systematic taxones of plants (species, sorts etc.), and by geography, in particular, by nature-climatic zones and high-altitude belts. In the plain part of the steppe and desert zones both diversity and peculiarity of a flora are increased from west by east, and in mountain systems - from northeast (Altay) to the southwest (Western Tien-Shan, Karatau).In the Kazakhstan territory, more than 6000 species of highest vascular plants, about 5000 species of mushrooms, 485 species of lichen, more than 2000 species of seaweed, about 500 species of mushrooms are registered.