Grassland and Shrubland Habitat Types of Western Montana

A classification system based upon potential natural vegetation is presented for the grasslands and shrublands of the mountainous western third of Montana. The classification was developed by analyzing data from 580 stands. Twenty-nine habitat types in 13 climax series are defined and a diagnostic key provided for field identification. Environment, vegetative composition, forage production, changes with grazing, and range management practices are described for each habitat type.