They're covered with a "dirty" brownish skin. When peeled, they are a pure white but very quickly they will start to discolor (like a potato.) This photo shows them coated in olive oil. Below are the peelings.
Out of the oven, slightly roasted. They are very fibrous....much more than a parsnip. I couldn't compare the taste to anything....they're very mildly earthy....not unpleasant. They were a terrific companion for the beet greens and small piece of beef that was my lunch.
Would I have them again? Yes. I haven't seen them for sale around here, but I'm sure I can keep my eye out for some plants in my travels ;)
I hope you are enjoying a pleasant late summer Sunday. Have fun, and maybe try something new!