The vegetation communities of Yellowstone National Park include overlapping combinations of species typical of the Rocky Mountains as well as of the Great Plains to the east and the Intermountain region to the west. The exact vegetation community present in any area of the park reflects the consequences of the underlying geology, ongoing climate change, substrates and soils, and disturbances created by fire, floods, landslides, blowdowns, insect infestations, and the arrival of nonnative plants. (Map of Vegetation Communities)
Today, the roughly 1,386 native taxa in the park represent the species able to either persist in the area or recolonize after glaciers, lava flows, and other major disturbances. Yellowstone is home to three endemic plant species, at least two of which depend on the unusual habitat created by the park’s thermal features. Most vegetation management in the park is focused on minimizing human-caused impacts on their native plant communities to the extent feasible. Continue: Forests
Number in Yellowstone
Native plant taxa: more than 1,000:
Nonnative plant species: 225.