epiphyllum(redirected from Orchid cacti)
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|Noun||1.||epiphyllum - any cactus of the genus Epiphyllum having flattened jointed irregularly branching stems and showy tubular flowers|
cactus - any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines
genus Epiphyllum - small genus of tropical American (mainly Central America) cacti