Rush thatch is a traditional roofing material that has been used for many centuries. It is made from rushes, a type of wetland plant that is abundant in marshy areas. Rush thatch has a unique look and texture that gives any building a rustic and natural appeal. There are various synonyms for the word "rush thatch" that can help you describe this type of roofing. These include rush straw, cattail thatch, bulrush thatch, and reed thatch. Whatever synonym you choose to use, rush thatch is a durable and long-lasting roofing option that has been used for centuries to protect homes and buildings from the elements.