This book includes description of main morphological characteristics of 435 species (including varieties and subspecies) belonging to 57 families and 233 genera of endemic and endangered plants of Hulun Buir Rangeland in China. A brief description of the morphological characteristics of each plant, flowering period, zoning, habitat, and the usage habits of most plants, together with 1 to 4 photographs taken in the field are provided. This work is designed not only for researchers working in rangeland science, ecological restoration and protection but also for professionals working in rangeland and related fields. The work is a result of many years of rangeland plant collection and specimens identification.