Which US state is considered part of the Western States, the Mountain States, southern Great Plains States, and Southwestern States?
Flaveria campestris: Flaveria campestris, common name alkali yellowtops, is a plant species native to the southwestern United States and to the southern Great Plains (Arizona, Utah, New Mexico, Colorado, Texas, Missouri, Kansas, Oklahoma, Missouri). Arizona: Arizona ( ; Navajo: "Hoozdo Hahoodzo" [xòːztò xɑ̀xòːtsò] ; O'odham: "Alĭ ṣonak" [ˡaɺi ˡʂonak]) is a state in the southwestern region of the United States. Arizona:  It is also part of the Western and the Mountain states.
Arizona