Moss, Argon

A type of magenta moss that only grows on rocks. In its native habitat, it grows in small rocky caverns with no opening to the cave air. It can be safely transplanted anywhere else, even the surface, and it will still grow just fine. It glows a bright magenta, but doesn't illuminate anything.
A sample of xenon moss was acquired by the unnamed robot after being taught about it by Cherry. It is now growing in the Slave Hole and Mushroom Apartments on Daenc Hydrax 4.