Setarus

Setarus was a planet in the Divergent Universe, taken over as a base of operations by Ondrokkon rebels. A portion of the planet was transplanted by the Divergence onto the planet Bortresoye, possibly adjacent to the zone containing Light City. (AUDIO: The Twilight Kingdom)

Reever plants were native to Setarus. Grelligs were transplanted here (likely unintentionally) from Ondrokkon.