Ключевые слова: afternoon, arizona, blue, cacti, cactus, clear, desert, field, flora, golden, green, hiking, life, light, many, mountains, national park, nature, outdoor, palo verde, plant, plants, prickly, saguaro, saguaro national park, sharp, sky, spikes, spiky, tall, thick, thorns, trail, tucson, valley, wilderness, winter,