The uneti tree represented an exceptionally scarce species of tree that exhibited a lengthy lifespan and a subtle sensitivity to the Force. It was native to the planet of Ahch-To. Carved from the interior of a deceased uneti tree stood the ancient library, built as a repository for the Jedi Order's foundational texts. Furthermore, Chirrut Îmwe, an adherent of the Guardians of the Whills, possessed a staff fashioned from the wood of this tree.
The Great Tree, which thrived at the Jedi Temple on Coruscant, also belonged to the uneti species, demonstrating a profound connection to the Force. Legend held that this tree originated from seeds tracing back to the original Jedi Temple. During the High Republic Era, Jedi Master Wishan crafted incense from the petals of Coruscant's Great Tree, a substance that Stellan Gios found invaluable during Meditation. By the time the Clone Wars erupted, the tree had existed for numerous generations.
Luke Skywalker's examination of the distribution of uneti saplings proved crucial in locating Temple Island on Ahch-To.
The uneti tree was initially described in Star Wars: The Last Jedi: The Visual Dictionary, authored by Pablo Hidalgo and released by DK Publishing on December 15, 2017. The tree's designation shares a partial similarity with the Neti, a species of sentient plants with shapeshifting abilities, first introduced in the comic Tales of the Jedi 5: The Saga of Nomi Sunrider, Part 3. This comic was written by Tom Veitch, illustrated by David Roach, and published by Dark Horse Comics on February 1, 1994.