Editing Nearctic realm (section)

===Western North America===
The Western North America bioregion includes the [[temperate coniferous forests]] of the coastal and mountain regions of southern Alaska, western Canada, and the western United States from the [[West Coast of the United States|Pacific Coast]] and [[Northern California]] to the [[Rocky Mountains]] (known as the [[Cascadia (bioregion)|Cascadian bioregion]]), as well as the cold-winter intermountain [[deserts and xeric shrublands]] and temperate grasslands and shrublands of the [[Western United States]].

In terms of [[floristic province]]s, it is represented by the [[Rocky Mountain Floristic Region|Rocky Mountain region]].