With the exception of community pastures, wetland meadows, and edaphic grasslands most of the area is forested in various stages of succession.
In the Sub-Boreal Spruce Zone, hybrid white spruce and subalpine-fir are the climax dominant trees, with lodgepole pine and trembling aspen dominating seral stands. The understorey is dominated by Canada reedgrass, hairy wildrye, blue wildrye, and pumpelly bromegrass. Purple oatgrass, peavine and vetch are common. Grasslands occur on open south facing edaphic sites. Stiff needlegrass, junegrass, Kentucky bluegrass, vetch and Saskatoon are the main forage species. These grasslands have become VERY rare, existing mainly on steep river breaks in drier locations. Grazing occurs from May to August.
In the Sub-Boreal Pine/Spruce Zone, lodgepole pine is the dominant tree accompanied by white spruce and trembling aspen. Pinegrass is the dominant forage species. Riparian areas are used extensively for grazing and hay production.