The picture of the clump is pretty telling! Based on the tightness of the clump, I don't think it is Musa itinerans. It also has quite a bit of wax on the petioles and upper pseudostem, which is not in the original description of M. itinerans. Sure does look a lot like the picture of the banana they have listed as M. itinerans on RPS:
And what Agri-starts sells as Musa itinerans:
Whatever it is, it is different from the pics I posted, but still similar in many ways. Musa yunnanensis is a possibility also, or a variety of Musa balbisiana.