I found a nice patch of Cranesbill and dug up a couple of roots. They seemed to be decaying. I went to a completely different area and found a large patch and dug up the roots of a plant that had one flower left on it. The root was the same as the first, opened up, areas that were somewhat crumbly and light weight.
Attached is a photo I took of the third root I dug up. You can see how it looks opened up.