The Chihuahuan desert didn't have as many cactus as I had expected. But, I noticed this cactus growing along the Pine Tree Trail. It had been sheltered by the rocks and a small tree as it grew. Cacti bloom in the spring, so we didn't see any cactus flowers. Note the fern leaves in the lower half of the photo; cactus and ferns --- that is a combination that you don't expect to see together!