This was taken about 1 hour ago in bright sun. The doubles always have some flare from the sun.
These roots are from a double red relocated in '09. In '10 it bloomed and appeared to be doing well. In '11 it only put up one stem and was between 2 singles so I dug it. What a mess. I salvaged the center root with the stalk and new eye and gave it to PollyK. So far, she has not seen new growth but all of her plants are late.
Note the nodule at the bottom of the larger root. Much as you said about the roots.