K-G (short for Kelly-Green and also known as K-2) was a planet that was first discovered by the USS Enterprise in 2266. The planet was named K-G by the Enterprise crew after a comment made by an officer that the planet looked "Kelly Green".
History and specifics[]
Captain James T. Kirk led a landing party to the planet's surface and discovered that it was populated by giant plant life. While surveying the planet, Crewman Hunt became infected with plant spores and transformed into a giant tree. The rest of the landing party was spared from being devoured when the tree that was Hunt sacrificed himself.
The planet was home to a sentient race of plant life-forms, with something resembling a civilization. Unfortunately, the Enterprise was forced to exterminate all plant life on the planet, as it bore too great of a threat to the rest of the galaxy. It is unknown if anything survived. (TOS comic: "The Planet of No Return")