UH... Chewbaccas...I guess...
These are just weird.
So, what do you think you get when you combine the external covering of the woody roots, stems and branches of trees (as distinct from the wood itself) with the awesomely hairy Wookiee that routinely covered Han Solo's back when he was in trouble? Well, I think you'd get Chewbarka, wouldn't you? And next time you happen to see Han Solo leaning against a tree, be sure to snap off a photo, as you can never tell what will turn out to have been lurking in the details of the landscape.