carders. caching. They might also be dog hair combers, I heard you can use that as well.
In any case, I took out some of the dirt and hay and other undesirable stuff, then washed it in the washing machine with a little bit of soap. I just put it on rinse and spin cycle, so it didn't felt. It's still a little gummy, but I think it's ok, I'm letting it soak in kool aid as I speak, or write. I'm thinking of maybe using it for some needle felting experiments.
The other roving, the one which led to this discovery, did seem to felt, or at least the fibers looked a whole lot different once it was washed. It still seems to spin just fine. Now I'm fiber content.
Yes, my finger is purple. The spindle in the background is filled with yarn I had also 