Position in a system
species
Northern Buckler-fern
Dryopteris expansa (C. Presl) Fraser-Jenk. & Jermy
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Bikonta - bikonts |
| Corticata | |
| Archaeplastida | |
| kingdom | Plantae Haeckel - plants |
| divisio | Monilophyta Cantino et Donoghue - ferns and horsetails |
| class | Polypodiopsida Cronquist, Takht. & Zimmerm. |
| order | Polypodiales Link |
| family | Dryopteridaceae Herter |
| subfamily | Dryopteridoideae B.K.Nayar |
| genus | Dryopteris Adans. - woodfern |
| species | Dryopteris expansa (C. Presl) Fraser-Jenk. & Jermy - Northern Buckler-fern |