White cactus flowers images.

White cactus flowers images. Cactus plants are native to the Americas and grow throughout the western and southwestern United States, as far north as Utah and Idaho. The plant has adapted to survive in rough, inhospitable terrain with poor soil and little water and is leafless, with swollen stems and spines. Over 2,000 species exist. All of them produce blossoms and fruit, but only two--saguaro and organ pipe cactus--produce white flowers. Cacti make attractive (if thorny) landscape plants in warm, dry climates and provide habitats and food for birds and wildlife. Grow miniature varieties as house plants.