echinocereus rigidissimus - beautiful cactus with short pink spines in the collection

echinocereus rigidissimus cactus cacti succulent succulents pink spines thorns desert plant flora nature exotic collection potted botany gardening horticulture greenhouse closeup beautiful decorative droughttolerant xerophyte arid prickly spiney colorful rare dry sharp small habitat biodiversity desertplant exoticplant succulentplant background hardy usa purple summer world