Classification
Kingdom: Plantae (2659)
Phylum: Pteridophyta (45)
Class: Polypodiopsida (36)
Order: Polypodiales (35)
Family: Aspleniaceae (4)
Genus: Asplenium (4)
Epithet: ceterach L. (1)
Synonym: Ceterach officinarum Willd.
officinarum => of practical use to man; official species in commerce, especially for medicinal purposes