The saguaro, barrel and nopal cacti are staples of the Sonoran Desert, pictured on almost every postcard from the Southwest. Going unnoticed can be the ironwood, mesquite, palo verde and various ...

The palo verde tree is native to the Sonoran Desert and other arid regions in the southwestern U.S. The plant boasts a verdant bark and golden blossoms and is a beacon of life in the desert.

This section of the Sonoran Desert near the border between Arizona and Mexico ... such as saguaro, cholla, mesquite and palo verde trees, and ocotillo. Hike on the park's nine scenic trails or take a ...