The scientific name of this unusual plant is Schlumbergera, but they are also known and Christmas Cactus, Thanksgiving Cactus, Claw Cactus, Holiday Cactus and Crab Cactus. I’ve only ever known them as Zygocactus, or Zygos for short.
I guess the reference to Christmas and Thanksgiving comes from North America as these plants flower during the cooler months. Sure enough, this name doesn’t make a lot of sense in the southern hemisphere where they flower in the middle of the year. In fact, they flower in response to lengthening nights and do not like direct sunlight.
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