bigdog

Nobody's done any DNA work on it yet, and that's not likely to happen anytime in the near future, so we will be left to speculate as to what its parentage (other than sikkimensis) is. It does have balbisiana leaf characteristics, as Kyle said, but so do a lot of other bananas. Seeing as how balbisiana grows nearby (relatively), it's not too much of a stretch to think that it could be.