buckler fern

== English == === Etymology === From the shape of the indusia (membranes) that cover the fern's sori (spores). === Noun === buckler fern (plural buckler ferns) Certain species of the fern genera, principally of genus Dryopteris. ==== Derived terms ==== ==== Translations ==== === See also === shield fern sword fern === References === buckler fern on Wikipedia.Wikipedia Dryopteris on Wikispecies.Wikispecies Category:Dryopteris on Wikimedia Commons.Wikimedia Commons