Polypodiopsida is a class of plants commonly known as ferns. These vascular plants are characterized by their feathery leaves, called fronds, which often unfurl from a coiled position. Ferns reproduce via spores rather than seeds, and they thrive in a variety of habitats, particularly in moist, shaded environments. Ferns are an ancient group of plants, with a history dating back over 300 million years. They play a crucial role in ecosystems by providing habitat and food for various organisms. Additionally, ferns are often used in landscaping and as houseplants due to their attractive foliage.