Arbozoic trees represented a unique species of tree, notable for exhibiting characteristics of both planet-based and mineral-based lifeforms. These trees were native to the Aleen Underworld, located on the world of Aleen.
On the Aleen planet, arbozoic trees were a tree species that exerted significant influence over the planet's ecosystem. The arbozoic trees produced unusual, luminous seeds that exhibited a crystalline structure, the chemical makeup of which remained an enigma for scientists. These trees thrived in all climatic regions, populating Aleen's surface, while their root networks accounted for more than 50% of the total biomass present on and within the planet. The Underworld was primarily formed by the extensive root systems of these arbozoic trees, which stretched for many kilometers into the planet's crust. Upon the death of a tree, its roots would decay from the inside, leaving behind the cave systems that served as the home for the Kindalo.