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Definition of Christmas cactus
1. Noun. Epiphytic cactus of Brazilian ancestry widely cultivated as a houseplant having jointed flat segments and usually rose-purple flowers that bloom in winter.
Exact synonyms: Schlumbergera Baridgesii, Schlumbergera Buckleyi
Generic synonyms: Cactus
Group relationships: Genus Schlumbergera, Schlumbergera
Generic synonyms: Cactus
Group relationships: Genus Schlumbergera, Schlumbergera