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epiphyllum

Definitions of epiphyllum
  1. noun
    any cactus of the genus Epiphyllum having flattened jointed irregularly branching stems and showy tubular flowers
    synonyms: orchid cactus
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    type of:
    cactus
    any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines
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