Schlumbergera in Ill. Hort. 5: 24. 1858 sec. Korotkova & al. (2011)
- =Zygocactus, Fl. Bras. 4: 223. 1890 syn. sec. Hunt (2006)
- Type: Zygocactus truncatus
- =Epiphyllanthus in Rep. (Annual) Missouri Bot. Gard. 16: 84. 1905 syn. sec. Hunt (2006)
Schlumbergera (the Christmas cactus) is one of the best-known and one of the morphologically best-defined Cactaceae genera, recognizable by its flattened stems and bright pink zygomorphic flowers. Its monophyly was confirmed by the molecular phylogenetic analysis of Calvente & al. (2010) and Korotkova & al. (2011). Recent annotated checklist by Barthlott & Taylor (1995).