Chucker, There are cold hardy bamboos. The only thing I could tell you is to cut some and try it out. The cane I am familiar with has a 3 year growing cycle(for each culm[shoot]). You do not want to cut the first year growth. It has fresh sheaths at the nodes and is usually bright green. After the second year is the best time to harvest and until the older canes turn olive green to tan. By the time it gets to tan, its too late, they have started to deteriorate.
Go cut a mess of the cane and put them into bundles of similar canes and observe them as they dry. It will be obvious which ones will be useable.
Do you have any pics of the individual canes and the patch where it grows. That might help ID it. Pat