Echinocereus rigidissimus, commonly known as the Arizona rainbow cactus or rainbow hedgehog cactus, is a captivating desert cactus renowned for its vibrant spines and striking flowers. Native to the Sonoran Desert of southwestern United States and northern Mexico, this hardy plant thrives in arid, rocky environments, adding a splash of color and intriguing texture to the desert … [Read more...] about Echinocereus rigidissimus: A Rainbow of Spines and Flowers