Another begonia ID
At least I think this is a begonia. A friend said that her friend gave her this leaf. I didn't understand all that she was saying about it at the time, but this is the photo that she sent. I told her it looks like some begonia or other, but I didn't know what it's name. Can you help me help her? Is this going to root? I have rooted a beefsteak begonia this way, but not in so large a pot, and I put the business end closer to the middle of the soil. Thanks!