Close up of Engelmann's prickly-pear (Opuntia engelmannii) cactus in bloom, Watchman trail, Zion National Park, Utah, United States of America, North America

opuntia engelmannii cactus bloom yellow flowers watchman trail utah usa north america nature flora desert plant prickly pear succulent natural beauty landscape wildlife hiking outdoor botanical close up desert environment flowering plant life national park vivid colors textures spring growth native species arid climate vibrant scenery ecology conservation trails rocks regional plants southwestern flora pollination ecosystem american southwest breathtaking views seasonal blooms plant detail