Forests of Canada
Named forests are found within eight distinct regions. These forests may also be part of ecosystems, a number of which extend south into the United States. For example, the Northern hardwood forest is an ecosystem located in large areas of southeastern and south central Canada as well as in Ontario and Quebec. This system extends south into the United States.
Geography of Oklahoma
Forests cover 24 percent of Oklahoma, and prairie grasslands, composed of shortgrass, mixed-grass, and tallgrass prairie, harbor expansive ecosystems in the state's central and western portions. Where rainfall is sparse in the western regions of the state, shortgrass prairie and shrublands are the most prominent ecosystems, though pinyon pines, junipers, and ponderosa pines grow near rivers and creek beds in the far western reaches of the panhandle. Marshlands, cypress forests and mixtures of shortleaf pine, loblolly pine, sabal minor, and deciduous forests dominate the state's southeastern quarter, while mixtures of largely post oak, elm, cedar and pine forests cover the Ozark Mountains in northeastern Oklahoma. Many rare, relic species such as sugar maple, bigtooth maple, southern live oak, and nolina inhabit Southwestern Oklahoma and the Wichita Mountains.