Tradescantia occidentalis
It is common and widespread across the western Great Plains of the United States , as well as in Arizona , New Mexico , southern Utah , and Sonora , but is listed as a threatened species in Canada . 
<triplet> Great Plains <subj> United States <obj> country <triplet> Arizona <subj> United States <obj> country <triplet> New Mexico <subj> United States <obj> country <triplet> Utah <subj> United States <obj> country