Pyrrosia Lingua, commonly known as the "tongue fern," is a plant species that belongs to the family Polypodiaceae. While the name Pyrrosia Lingua is widely recognized, there are also several synonyms that can be used to refer to this species. Some of these include Drymotaenium Lingua, Niphoblennium Lingua, and Oleandra Lingua. These synonyms are useful for individuals who may be studying or working with the plant as they provide alternative names that can be used interchangeably. Regardless of what name is used, Pyrrosia Lingua remains a unique and fascinating plant that can be found in various parts of the world.