Public domain photos

The image shows a close up of a tree trunk with lichen on it. The lichen is a light brown color and is spread across the bark of the tree. It is clustered together in small clusters, and its texture is rough and bumpy.

The image shows a close up of a tree trunk with lichen on it. The lichen is a light brown color and is spread across the bark of the tree. It is clustered together in small clusters, and its texture is rough and bumpy.Open in library