Ferns of the Adirondack Park

The table below contains a listing of fern species based on data from the New York Flora Atlas, which is produced by the New York Flora Association. Nomenclature follows the New York Flora Atlas. The list was created by searching the digital atlas for those fern species present in Warren, Herkimer, Hamilton, Franklin, Essex, and Clinton counties.

Scientific Name Common Name Family
Adiantum pedatum maidenhair fern Pteridaceae
Asplenium montanum mountain spleenwort Aspleniaceae
Asplenium platyneuron ebony spleenwort Aspleniaceae
Asplenium rhizophyllum walking fern Aspleniaceae
Asplenium ruta-muraria wall-rue Aspleniaceae
Asplenium trichomanes ssp. trichomanes maidenhair spleenwort Aspleniaceae
Athyrium angustum northern lady fern Athyriaceae
Botrychium angustisegmentum narrow triangle moonwort Ophioglossaceae
Botrychium dissectum dissected grapefern Ophioglossaceae
Botrychium matricariifolium daisy-leaved moonwort Ophioglossaceae
Botrychium multifidum leathery grapefern Ophioglossaceae
Botrychium oneidense Oneida grapefern, blunt-lobed grape-fern Ophioglossaceae
Botrychium rugulosum St. Lawrence grapefern Ophioglossaceae
Botrychium simplex least moonwort Ophioglossaceae
Botrychium virginianum rattlesnake fern Ophioglossaceae
Cryptogramma stelleri slender cliff-brake, Steller's cliff-brake Pteridaceae
Cystopteris bulbifera bulblet fern Cystopteridaceae
Cystopteris fragilis fragile fern Cystopteridaceae
Cystopteris tenuis Mackay's fragile fern Cystopteridaceae
Dennstaedtia punctilobula hay-scented fern Dennstaedtiaceae
Deparia acrostichoides silvery spleenwort Athyriaceae
Dryopteris campyloptera mountain wood fern Dryopteridaceae
Dryopteris carthusiana spinulose wood fern Dryopteridaceae
Dryopteris carthusiana × D. cristata = D. ×uliginosa marsh wood fern Dryopteridaceae
Dryopteris carthusiana × D. intermedia = D. ×triploidea triploid wood fern Dryopteridaceae
Dryopteris clintoniana Clinton's wood fern Dryopteridaceae
Dryopteris clintoniana × D. goldiana = D. ×mickelii Mickel's wood fern Dryopteridaceae
Dryopteris clintoniana × D. intermedia = D. ×dowellii Dowell's wood fern Dryopteridaceae
Dryopteris clintoniana × D. marginalis = D. ×burgessii Burgess's wood fern Dryopteridaceae
Dryopteris cristata crested wood fern Dryopteridaceae
Dryopteris cristata × D. intermedia = D. ×boottii Boott's wood fern Dryopteridaceae
Dryopteris cristata × D. marginalis = D. ×slossoniae Slosson's wood fern Dryopteridaceae
Dryopteris fragrans fragrant wood fern, fragrant cliff fern Dryopteridaceae
Dryopteris goldiana Goldie's wood fern Dryopteridaceae
Dryopteris intermedia evergreen wood fern, fancy wood fern, common wood fern Dryopteridaceae
Dryopteris marginalis marginal wood fern Dryopteridaceae
Gymnocarpium dryopteris oak fern Cystopteridaceae
Homalosorus pycnocarpos glade fern Diplaziopsidaceae
Matteucciastruthiopteris var. pensylvanica ostrich fern Onocleaceae
Onoclea sensibilis sensitive fern Onocleaceae
Ophioglossum pusillum northern adder's-tongue Ophioglossaceae
Osmunda claytoniana interrupted fern Osmundaceae
Osmunda regalis var. spectabilis royal fern Osmundaceae
Osmundastrumcinnamomeum var. cinnamomeum cinnamon fern Osmundaceae
Pellaea atropurpurea purple cliff-brake Pteridaceae
Pellaea glabella ssp. glabella smooth cliff-brake Pteridaceae
Phegopteris connectilis long beech fern Thelypteridaceae
Phegopteris hexagonoptera broad beech fern Thelypteridaceae
Polypodium appalachianum Appalachianpolypody Polypodiaceae
Polypodium virginianum Virginian rock polypody Polypodiaceae
Polystichum acrostichoides Christmas fern Dryopteridaceae
Polystichum braunii Braun's holly fern Dryopteridaceae
Pteridium aquilinum ssp. latiusculum eastern bracken fern Dennstaedtiaceae
Thelypteris noveboracensis New York fern Thelypteridaceae
Thelypteris palustris var. pubescens marsh fern Thelypteridaceae
Thelypteris simulata Massachusetts fern Thelypteridaceae
Woodsia alpina alpine woodsia, alpine cliff fern Woodsiaceae
Woodsia glabella smooth woodsia, smooth cliff fern Woodsiaceae
Woodsia ilvensis rusty woodsia, rusty cliff fern Woodsiaceae
Woodsia obtusa ssp. obtusa blunt-lobed woodsia, blunt-lobed cliff fern Woodsiaceae
Woodwardia virginica Virginia chain fern Blechnaceae


The fern list above includes the following families: Aspleniaceae, Athyriaceae, Blechnaceae, Cystopteridaceae,  Dennstaedtiaceae, Diplaziopsidaceae, Dryopteridaceae, Onocleaceae, Ophioglossaceae, Osmundaceae, Polypodiaceae, Pteridaceae, Thelypteridaceae, Woodsiaceae.

The list has the following limitations:

  • The New York Flora Atlas is organized by county. The boundaries of the Adirondack Park do not coincide with county boundaries. Only those counties with land area that falls totally or mainly within the Park were searched to create the list above: Warren, Herkimer, Hamilton, Franklin, Essex, and Clinton. Two of these counties – Hamilton and Essex – fall totally within the boundaries of the Adirondack Park. The other four counties (Warren, Herkimer, Franklin, and Clinton) contain areas which fall outside the Park. For that reason, some of fern species on the list may be plants that fall within county boundaries, but outside the Blue Line.
  • The fern list above does not include the six counties (Washington, St. Lawrence, Lewis, Fulton, Oneida, and Saratoga) on the periphery of the Park that fall mainly outside Park boundaries. The list may exclude fern species in those counties that occur within the Blue Line.
  • The distribution maps in the New York Flora Atlas are based on vouchered specimens only. Some fern species may be present within the Park, but not included in the Atlas because a voucher specimen has never been collected. The current Atlas is considered preliminary and in a draft stage. The list of fern species in the Adirondack region will likely change, as the New York Flora Atlas is revised, improved, and developed.


Copyright 2018