That’s actually part of the recipe. By the time you nitrate the cellulose and then camphor spike it, you’re far from the cellulose that grew out of the forest floor. So technically they related but only one generation closer than carbon and we don’t worry about coal byproducts burning in our GFs
The original lister’s recipe is kind of like making fiberglass. The constituent parts are nasty in their original form but largely inert after laying up and curing.
I had a big camphor tree at the previous house, beautiful wood but I suspect it might do poorly in a Glowforge. It was the source for camphor till they found cheaper ways to get it.
Was very controversial in early Florida. There was a tiny biting gnat that would not be around a Camphor tree, so they were very good to grow mer the porch, but when a brush fire came by it was a very bad thing to be near a house.
This was a dead Camphor tree.