Habitat: All along the Himalayas from Kashmir to Sikkim between altitudes of 1,800 and 2,700 m.
English: American Maidenhair Fern, Venus Hair, Rock Fern.Ayurvedic: Hansaraaja, Hansapadi (related sp.).Unani: Parsiaavashaan.Siddha/Tamil: Seruppadai.Folk: Mubaaraka.Action: Astringent, demulcent, expectorant, antitussive, stimulant, emmenagogue. Fonds used in chronic catarrh (as an ingredient of cough and bronchial medicines); also in cold imposthumes of uterus, hard swellings and hard tumours of spleen, liver and other viscera.
The fern contains flavonoid gluco- sides, including rutin, isoquercetin, as- tragalin, kaempferol; hydroxycinnam- ic acid esters; terpenoids, including adiantone.