The Unknown jungle regions was a big jungle area covering much of south Namelesennia, in the Namelesennia system. Among the many kind of trees were the blue oaks, that had blue flowers in the spring and green leaves in the summer. Creatures in the jungle included the Jungle bug and the Sand-eater, but also the rare Namelesennian Sarlacc appeared. And a cave deep within the jungle was the only source in the Galaxy of a rare lightsaber srystal that gave lightsabers a clear orange color.
During his exile on Namelesennia, Namelesennius lived in the Unknown jungle regions.