ahhhhhhh begonias - I have one that I love dearly cuz I was raised on it. It's a "Cane like begonia - Angel Wing"
I've had some "confusion" with greenhouses - they want to sell me the tiny leafed ones, and I want the ones with large leaves - about the size of a lady's hand!
I was very lucky in that a fellow-gardener in Calgary had one, and gave me a slip. It's still small, but I am baby-ing it along. I want the cascades of pink flowers! It's a long-liver!!