Rieger (Hiemalis) begonia - usually considered an annual you can buy at different times of the year.

Do you think it could possibly be Wild Pony? It was tagged "Plum Paisley", which it obviously isn't, but this same place had Wild Pony at one time. This was the only begonia they presently had, and I've never seen Wild Pony in person, so I was just wondering...

Interesting the things you hear if you listen. I've never heard your rhizomatous begonias would rebloom if you cut the bloom stalks back just a little. I always leave a goodly stub, because I was told rot might set in if you cut them too close, but they never rebloom. The plant will shed those stubs cleanly after a little time, and I do the same with bad leaves. Some rhizomatous bloom for a longer period than others, and some have more blooms or larger ones than others, but I don't think cutting the bloom stems affects that. I could be wrong. Wouldn't be the first time!

I found a way to link to my pics. it's a non knitting topic section. Here: http://www.knittingparadise.com/t-394633-1.html