The saguaro cactus is a centuries-old icon of Arizona’s landscape, having appeared in more movies than actor John Wayne. Placement of the cactus in cartoons such as the “Road Runner and Wile E. Coyote” imprinted the saguaro on generations of impressionable young viewers.
These jolly green giants of the Sonoran Desert reach heights of 40 to 60 feet and can weigh between two and three tons. Saguaros stand as large green pillars atop the dusty landscape, welcoming visitors with open “arms”.
However, as a native plant in the Sonoran Desert, saguaros did not evolve in a fire-adapted...