Across the Sonoran Desert of Arizona and northern Mexico stands a plant so large and so long-lived that it has become the emblem of the American Southwest. The saguaro is the largest cactus in the ...

Business owners and their signmakers have a powerful botanical in their marketing toolbox. With some green paint, a modicum of skill, and a few quick brush strokes, they can convey a fabled region of ...

Fittingly enough, the future of the saguaro begins in the Old Pueblo. Researchers from the U.S. and Mexico gathered in Tucson earlier this month to launch the largest and most wide-ranging effort yet ...