Ключевые слова: arid, arizona, beautiful, birds nests, blue sky, botanical, branches, cacti, cactus, california, carnegiea gigantea, columnar, long lived, mexico, nature, needles, nevada, old, plants, prickly, protected, protection, saguaro, sharp, sonoran desert, southwestern, spines, spiny, succulent, tall, texas, tree, usa, utah, wild, wilderness,