Begonia flowering plant

I"'ve often heard the term Ruby Begonia, and this variety has deep red undsrleaf color and the top is green similar to the Angel wing Begonia which has white flowers whereas these are a lovely shade of pink. I was told that this was a rarer variety, but the nursery did not know its Latin genus.
I divided it and took a bunch of cuttings and am getting them started as gifts for friends. That's the Southern way of gardening. I am so excited to get my porch repaired and decorating it. Venture Builders did such a nice job of fixing the ceiling and redoing the supports and screening. It is such a pleasure to sit out and enjoy it in good weather.