Originating from the low elevations of Paraguay and northeastern Argentina, this intriguing cactus distinctiveness lies in its vibrant mutants, which, devoid of chlorophyll, boast vivid shades of red, orange, or yellow, earning them a place in the hearts of many houseplant enthusiasts. The most captivating aspect of this species is perhaps its dependency on grafting for survival, particularly for its colorful mutants lacking chlorophyll essential for photosynthesis. These unique forms are often grafted onto a Hylocereus cactus, creating what's popularly known as a Moon Cactus. The grafting process further extends to its propagation, where even when grafted, it produces offsets that can be grafted anew, ensuring the perpetuation of the plant​. The cactus also demonstrates a range of cultivars. Photographed in Bogotá, Colombia.