The gnarltree was a type of tree that grew on Dagobah, a planet of the Outer Rim Territories. They grew best in swampy terrains and had large, twisted roots. Dagobah pythons were commonly found amongst them. When Jedi Grand Master Yoda had to build a more permanent home during his exile on Dagobah, he chose the knoll at the base of a great gnarltree, beside a murky lagoon, as the location of his new hut. He also crafted wattles from gnarltree roots to use as some of his construction material.