Thermopsis rhombifolia could be found in the Great Plains, where do Great Plains could be found in the United States?
Thermopsis rhombifolia Thermopsis rhombifolia, also known as prairie thermopsis, is a flowering plant in the legume family. It is native to Canada and the United States, where it is found in the Great Plains, with extensions into the lower canyons of the Rocky Mountains. Its natural habitat is dry grasslands and woodlands.
Allium brevistylum Allium brevistylum is a plant species native to the western United States. It grows in meadows and along stream banks high in the mountains of Colorado, Utah, Wyoming, Montana and Idaho, at elevations of 2200–3400 m.