#marsh_fern__marshfern__thelypterispalustri__Dryopteris_thelypteris  fern having pinnatifid fronds and growing in wet places; cosmopolitan in north temperate regions
  supertype:  #fern  any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
  subtype:  #snuffbox_fern  fern of northeastern North America
  member of:  #genus_Thelypteris__Thelypteris  marsh ferns: in some classification systems considered part of genus Dryopteris in family Dryopteridaceae
     member of:  #family_Thelypteridaceae__Thelypteridaceae  genera Thelypteris; Phegopteris; others
        member of:  #class_Filicopsida__Filicopsida__Filicinae__class_Filicinae  ferns
           member of:  #division_Pteridophyta__Pteridophyta  containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
              member of:  #kingdom_Plantae__Plantae__plant_kingdom__plantkingdom  taxonomic kingdom comprising all living or extinct plants

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