Pot: 6,5 cm.
It is a cactacea perennial plant with the appearance of a columnar cactus, with many erect stems. The stems are of a particular bluish-green color, hence the name “C. azureus” (from Latin means "light blue"), embellished with yellow streaks, which make each specimen unique and special. It has well-defined ribs, outlined by many dense aligned areoles and by thin needle-like spines of a yellowish color. During summer, you can admire its beautiful white-pink nocturnal inflorescences.