Iolos VI was a planet, the sixth planet of the Iolos system, located in the galaxy's Alpha or Beta Quadrants.
History and specifics[]
In the year 2268, not long before their visit to Midgwis, the Federation starship USS Enterprise visited Iolos VI. While there, amateur botanist Hikaru Sulu collected samples of a mobile flowering plant, Aetavis spengleris, that was native to the world. (TOS novel: Ghost-Walker)