Dark taiga occurs mainly in western Siberia (up to the Yenisei River and Lake Baikal). In the north, there are spruce and larch forests with an admixture of Siberian limber. In the middle part, the forests consist mainly of Siberian pine. Finally, in the south, there is a formation called urman, with stand dominated by Siberian spruce, Siberian fir and Siberian pine with an admixture of small-leaved lime.
Light taiga (luminous, fresh) occurs in central and north-eastern Siberia (east of the Yenisei). It consists of Dahurian larch and Siberian spruce with admixtures of various species of willows and dwarf birch.
