It is a cane begonia for sure and is under the superba type. Similar to Sophie Cecile or Lana but probably neither. I received a cane from a member in our club that looks more like the cane above. She called it Ina Mae or Ida May or something like that.

If you go to Brad's Begonia World, he has some excellent advice on pruning, propagating, etc. Some nodes are where flowering structures emerge while all the other nodes is where a growing tip comes from (I didn't know this until I read that from Brad's Begonias) so it is important to recognize these two different type nodes before cutting.

http://www.bradsbegoniaworld.com/canes.htm