Phlegmariurus tetragonus

Phlegmariurus tetragonus, also known as the quadrangular forked polypody, is a species of fern that belongs to the family Hymenophyllaceae.

It is native to tropical and subtropical regions, including parts of Asia and the Pacific Islands, and has been used in traditional medicine for its medicinal properties.

The plant is said to have anti-inflammatory and antimicrobial properties, which can help to reduce pain and inflammation, as well as prevent infections.

In herbal preparations, the leaves of Phlegmariurus tetragonus can be used to make teas, infusions, and tonics that are believed to provide health benefits such as improved respiratory function, reduced fever, and enhanced immune system function.