Fouquieria splendens. It is uncommon to find a hillside covered with Ocotillo. I have one in my yard. It is even more uncommon in such a location for those brilliant red-orange flowers to look like a carpet. This is along the Sweetwater Trail to Wasson Peak, Tucson Mountains, Arizona, USA. Ocotillo flowers are favorites with hummingbirds. I use them to make a delicate punch by filling a gallon jar with them and then with water, and keeping in the refrigerator for 16 hours. They can be sucked like honeysuckle. The bark is used for female troubles, and people bind together branches to make fences. If the branches take root, you will have a living fence that will leaf out and produce flowers.