We just got this plant at a garage sale and we're not sure what it is. We were told by the former owners that it has flowered once at night, with a white, very fragrant flower. Thanks for the help!
it's a orchid cactus, night blooming (Epiphyllum oxypetalum) http://images.google.ca/images?q=Epiphyllum+oxypetalum&hl=en&lr=&ie=UTF-8&start=0&sa=N