I believe they are tamable.
I would go and try. But be aware that some animals refuse to be tamed, so if you waste all the tames they either (A. Did not want to be tames, as the number of how many tames you need to tame something is randomized, or (B. It cannot be tamed.
You should tame it on a character you don't really care about, as tumbleweeds don't do much damage, either.
Good luck! <3