Position in a system
| 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 | Marattiopsida Doweld |
| order | Marattiales Link |
| family | Marattiaceae Kaulf. |
| genus | Marattia Sw. - potato fern |
| species | Marattia douglasii (C.Presl) Baker - Hawai'i Potato Fern |