A friend of mine brought me a rescued plant. The poor thing was dry and dying. It has leaves shaped like my angel wing begonia only solid, glossy green. The plant itself is huge for a begonia (about 3 foot tall stalks/stems) but it *is* one as I can see where the blooms will be just as with any regular begonia. Does anyone know what type this might be and what I can do to care for it? It's revived, what's left of it, after a good water drench.