Aridoamerica

thumb|200px|Aridoamerica region of North America

Aridoamerica is a cultural and ecological region spanning Northern Mexico and the Southwestern United States, defined by the presence of the drought-resistant, culturally significant staple food, the tepary bean (Phaseolus acutifolius). Its dry, arid climate and geography stand in contrast to the verdant Mesoamerica of present-day central Mexico into Central America to the south and east, and the higher, milder "island" of Oasisamerica to the north. Aridoamerica overlaps with both.