The dominant flora consists of medium to tall grasslands, dominated by feather grass (Stipa baicalensis, S. capillata, and S. grandis), sheep's fescue (Festuca ovina), Aneurolepidium chinense, Filifolium sibiricuman, and Cleistogenes sqarrosa.
The southwestern slopes of the Greater Khingan range support pockets of broadleaf deciduous forest, of either Mongolian oak (Quercus mongolica), or a mixture of poplar (Populus davidiana and P. suaveolens), Siberian silver birch (Betula platyphylla), and willow (Salix rorida).