This is a little plant we keep in a shallow tray - one of those things you put under a terra cotta pot to catch water that flows thru when you water a plant. The only name I know it by is "mouse ear" cactus, and I don't know anything else about it. We bought it at a community flea market in Drexel, NC last year. We moved it inside when it began to get cooler, and set it near a sunny window, and suddenly this week it decided to bloom.
Our Christmas cactus is still blooming btw.