Real Biome: Painted mountains
Areas rich in exposed minerals that create a vast display of colors.
Real Biome: Bioluminescant forest
Dense tropical forests where flora and fungi luminesce at night.
Potentially Real Biome: Red Dwarf planet
A planet that orbits a sun where the light reaching the planet is minimal. As a result plants have evolved to be black or darker in order to absorb all spectrums of available light.
Imaginary Biome: Home Trees
Think the James Cameron Avatar movie. Please.