- Blechnaceae, family Blechnaceae - one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems; includes genera Blechnum; Doodia; Sadleria; Stenochlaena; Woodwardia
--1 is a kind of fern family
--1 is a member of Filicales, order Filicales, Polypodiales, order Polypodiales
--1 has members:Blechnum, genus Blechnum; genus Doodia; Sadleria, genus Sadleria; Stenochlaena, genus Stenochlaena; Woodwardia, genus Woodwardia