Silver Cholla (Cylindropuntia echinocarpa) is a common species of cactus which is native to the southwestern United States including Nevada, Arizona and California. The Silver cholla is a larger cactus which is known to grow in excess of 6 feet tall.
This species can be found rather easily and quite common in the Mojave Desert, Sonoran Desert and the the Colorado Desert. It is typically found in dry desert washes, Joshua Tree wood lands (as photographed above ) or pinyon-juniper woodland environments.
The body of the cactus is segmented by joints which are typically four to eight inches in length. The joints and body of the cactus are densely covered with spines about 1 inch long with are covered in a papery sheath. The spines are typically yellow in color, which contrast nicely against the green skin of the cactus body. This spiny armor not only protects the cactus, but is also forties the nests of the Cactus Wren and other animals who may seek shelter within this plant.
This cholla typically blooms in spring depending upon conditions. The flowers are green in color however some variants may contain yellow, pink or brown. The lumpy, tan-colored fruit hosts the seeds for germination and is known to have a foul scent.