Public domain photos

The image shows a close up of a rock with lichen growing on it, surrounded by dry grass. The lichen is a vibrant green color, and the rock is a light gray. The grass is a mix of green and brown, providing a contrast to the lichen.

The image shows a close up of a rock with lichen growing on it, surrounded by dry grass. The lichen is a vibrant green color, and the rock is a light gray. The grass is a mix of green and brown, providing a contrast to the lichen.Open in library