Common Polypody is a type of fern that is commonly found on rocks or walls. It is known by several synonyms such as Golden Polypody, Rock Brake, or Wall Fern. Its scientific name is Polypodium vulgare. The fern has a unique look, with fronds that can grow up to 60 cm long. Common Polypody is a hardy species that can tolerate extreme temperatures and grows well in shady areas. The fern is also popular in traditional medicine as it has been used to treat various ailments like inflammation, cough, and fever. With its various synonyms and uses, Common Polypody is an interesting fern species that deserves further exploration.