Orange Moon Cactus
Moon Cactus are a colorful group of succulents that lack the necessary chlorophyll to produce plant sugars through photosynthesis. For this reason, the plants are grafted onto a species that produces plentiful chlorophyll upon which the moon cactus can sustain itself for several years.
The most popular cultivars are varied mutants which completely lack chlorophyll, exposing the orange pigmentation. These mutant strains are often grafted onto the hylocereus cactus, and the combined plant is called a "Moon Cactus".