I'm just outside of Georgetown right now.
I had some cane that I harvested years ago from the Asheville NC area. It was on streambeds. Could that be hill cane? I most recently harvested some in SC around the Waccamaw river and near Santee, maybe that is switch cane? I don't remember the day I harvested the ones in NC so I can't say how different they looked in the ground. But the raw shafts look very similar. I have both side by side right now. I'll try and get some definitive ID features next time I harvest them so that I know which ones they are, I did not know we had three species! Thanks for the information.
Off topic, but since you are in NC do you ever go to the trad shoot in Conover NC? I will be in the Asheville area for the month of March and was hoping to attend.