Thornwoods were trees found in the Deepwoods. It was widely used to make weapons. Webfoot Goblins used their wood to make spears that accompanied their coracle shields. The lances of the Freeglade Lancers were made of thornwood. Daxiel Xaxis had a wooden stick made of thornwood. Thornwood pens were used by Slaughterers to keep the livestock safe from the dangers of the Deepwoods.