The description fits a type of moss or lichen, which can appear greenish and grayish and live in forested areas. However, considering the mention of bones and that it does not move, it could also refer to a decomposing animal or skeleton, which may have moss or lichen growing on it. In a more abstract sense, it could even describe a tree or plant that has a grayish bark and green leaves.
leaves
she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help! she lives in the sutumn forest in a corner somewhere sorry if i didn't help!
a fairy that lives and helps and protects the forest
they live in the forest
You
Wolves
squirrelbearcardinalrabbit
deer
anacondas do
The mushroom is a decomposer that lives on the forest floor and recycles nutrients from dead organisms back into the soil.
For Ocarina of Time? He lives in Kokiri Forest.
the gibbon lives in the tropical rain forest