#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
  member of:  genus_Thelypteris
  subtype:  snuffbox_fern__meadow_fern__Thelypteris_palustris_pubescens__Dryopteris_thelypteris_pubescens  fern of northeastern North America

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