caption: The image shows a common polypody fern growing out of a rock in the middle of a forest, surrounded by other rocks. The fern is lush and green, with its long, thin fronds cascading down from the top of the rock. Its leaves are a deep, vibrant green, and its veins are visible along the edges of the leaves. The other rocks in the background are a mix of grey and brown, providing a stark contrast to the bright green of the fern.