| No. of Sites |
Class | Order | Family | Genus | Species | Subspecies | Common Name |
Where for All Dates? | Phenology |
|---|---|---|---|---|---|---|---|---|---|
| 2431 | Filicopsida | Polypodiales | Dryopteridaceae | Polystichum | acrostichoides | - | Christmas fern | Here | Phenology |
| 1615 | Filicopsida | Polypodiales | Thelypteridaceae | Thelypteris | noveboracensis | - | New york fern | Here | Phenology |
| 1169 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | intermedia | - | Intermediate wood fern | Here | Phenology |
| 1030 | Filicopsida | Polypodiales | Dennstaedtiaceae | Dennstaedtia | punctilobula | - | Eastern hayscented fern | Here | Phenology |
| 880 | Filicopsida | Polypodiales | Dryopteridaceae | Athyrium | filix-femina | asplenioides | Common ladyfern | Here | Phenology |
| 332 | Filicopsida | Polypodiales | Dennstaedtiaceae | Pteridium | aquilinum | - | Bracken fern | Here | Phenology |
| 330 | Filicopsida | Polypodiales | Polypodiaceae | Polypodium | appalachianum | - | Appalachian polypody fern | Here | Phenology |
| 326 | Filicopsida | Polypodiales | Pteridaceae | Adiantum | pedatum | - | Northern maiden-hair fern | Here | Phenology |
| 315 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | marginalis | - | Marginal wood fern | Here | Phenology |
| 303 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | platyneuron | - | Ebony spleenwort | Here | Phenology |
| 250 | Filicopsida | Polypodiales | Dryopteridaceae | Cystopteris | protrusa | - | Lowland bladder fern | Here | Phenology |
| 250 | Filicopsida | Polypodiales | Dryopteridaceae | Deparia | acrostichoides | - | Silver false spleenwort | Here | Phenology |
| 250 | Filicopsida | Polypodiales | Thelypteridaceae | Phegopteris | hexagonoptera | - | Broad beechfern | Here | Phenology |
| 214 | Filicopsida | Polypodiales | Osmundaceae | Osmunda | cinnamomea | - | Cinnamon fern | Here | Phenology |
| 125 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | campyloptera | - | Mountain wood fern | Here | Phenology |
| 73 | Filicopsida | Polypodiales | Dryopteridaceae | Athyrium | species ** | - | (NA) | Here | Phenology |
| 64 | Filicopsida | Polypodiales | Dryopteridaceae | Athyrium | asplenioides | - | Asplenium ladyfern | Here | Phenology |
| 43 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | montanum | - | Mountain spleenwort | Here | Phenology |
| 30 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | rhizophyllum | - | Walking-fern spleenwort | Here | Phenology |
| 30 | Filicopsida | Polypodiales | Osmundaceae | Osmunda | claytoniana | - | Interrupted fern | Here | Phenology |
| 25 | Filicopsida | Polypodiales | Dryopteridaceae | Athyrium | filix-femina | - | Common ladyfern | Here | Phenology |
| 21 | Filicopsida | Polypodiales | Polypodiaceae | Polypodium | virginianum | - | Rock polypody fern | Here | Phenology |
| 20 | Filicopsida | Polypodiales | Polypodiaceae | Pleopeltis | polypodioides | - | Resurrection fern | Here | Phenology |
| 18 | Filicopsida | Polypodiales | Pteridaceae | Pellaea | atropurpurea | - | Purple cliff-brake | Here | Phenology |
| 15 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | species ** | - | (NA) | Here | Phenology |
| 14 | Filicopsida | Polypodiales | Blechnaceae | Woodwardia | areolata | - | Netted chain fern | Here | Phenology |
| 14 | Filicopsida | Polypodiales | Dennstaedtiaceae | Pteridium | aquilinum | latiusculum | Bracken fern | Here | Phenology |
| 13 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | trichomanes | trichomanes | Maiden-hair spleenwort | Here | Phenology |
| 13 | Filicopsida | Polypodiales | Dryopteridaceae | Athyrium | filix-femina | angustum | Common ladyfern | Here | Phenology |
| 13 | Filicopsida | Polypodiales | Lygodiaceae | Lygodium | palmatum | - | American climbing fern | Here | Phenology |
| 12 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | trichomanes | - | Maiden-hair spleenwort | Here | Phenology |
| 12 | Filicopsida | Polypodiales | Osmundaceae | Osmunda | regalis | - | Royal fern | Here | Phenology |
| 11 | Filicopsida | Polypodiales | Dryopteridaceae | Diplazium | pycnocarpon | - | Glade fern | Here | Phenology |
| 10 | Filicopsida | Polypodiales | Dryopteridaceae | Onoclea | sensibilis | - | Sensitive fern | Here | Phenology |
| 10 | Filicopsida | Polypodiales | Dryopteridaceae | Woodsia | obtusa | - | Blunt-lobed cliff fern | Here | Phenology |
| 9 | Filicopsida | Polypodiales | Thelypteridaceae | Phegopteris | species ** | - | (NA) | Here | Phenology |
| 8 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | resiliens | - | Black-stemmed spleenwort | Here | Phenology |
| 7 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | carthusiana | - | Spinulose woodfern | Here | Phenology |
| 7 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | goldiana | - | Goldies fern | Here | Phenology |
| 7 | Filicopsida | Polypodiales | Pteridaceae | Cheilanthes | lanosa | - | Hairy lipfern | Here | Phenology |
| 6 | Filicopsida | Polypodiales | Dennstaedtiaceae | Dennstaedtia | species ** | - | (NA) | Here | Phenology |
| 6 | Filicopsida | Polypodiales | Pteridaceae | Adiantum | species ** | - | (NA) | Here | Phenology |
| 5 | Filicopsida | Polypodiales | Dryopteridaceae | Dryopteris | cristata | - | Crested wood fern | Here | Phenology |
| 5 | Filicopsida | Polypodiales | Osmundaceae | Osmunda | regalis | spectabilis | Royal fern | Here | Phenology |
| 5 | Filicopsida | Polypodiales | Pteridaceae | Cheilanthes | tomentosa | - | Woolly lip fern | Here | Phenology |
| 4 | Filicopsida | Polypodiales | Aspleniaceae | Asplenium | species ** | - | (NA) | Here | Phenology |
| 4 | Filicopsida | Polypodiales | Osmundaceae | Osmundastrum | cinnamomeum | - | Cinnamon fern | Here | Phenology |
| 3 | Filicopsida | Polypodiales | Dennstaedtiaceae | Pteridium | aquilinum | pseudocaudatum | Bracken fern | Here | Phenology |
| 3 | Filicopsida | Polypodiales | Hymenophyllaceae | Trichomanes | petersii | - | Dwarf filmy fern | Here | Phenology |
| 3 | Filicopsida | Polypodiales | Polypodiaceae | Pleopeltis | polypodioides | michauxiana | Resurrection fern | Here | Phenology |
| 3 | Filicopsida | Polypodiales | Thelypteridaceae | Thelypteris | hexagonoptera | - | Broad beechfern | Here | Phenology |
| 3 | Filicopsida | Polypodiales | Thelypteridaceae | Thelypteris | palustris | pubescens | Marsh fern | Here | Phenology |
| 2 | Filicopsida | Polypodiales | Dryopteridaceae | Cystopteris | bulbifera | - | Bulblet fern | Here | Phenology |
| 2 | Filicopsida | Polypodiales | Dryopteridaceae | Cystopteris | tenuis | - | Upland brittle fern | Here | Phenology |
| 2 | Filicopsida | Polypodiales | Vittariaceae | Vittaria | appalachiana | - | Appalachian vittaria | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Dryopteridaceae | Athyrium | filix-femina | v. aspleniodes | Common ladyfern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Dryopteridaceae | Cystopteris | species ** | - | (NA) | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Dryopteridaceae | Homalosorus | pycnocarpos | - | Wood fern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Hymenophyllaceae | Trichomanes | boschianum | - | Bristle-fern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Hymenophyllaceae | Trichomanes | intricatum | - | Weft fern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Polypodiaceae | Pecluma | species ** | - | (NA) | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Pteridaceae | Cheilanthes | alabamensis | - | Alabama lipfern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Pteridaceae | Myriopteris | tomentosa | - | Misdemeanor fern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Thelypteridaceae | Thelpyteris | noveboracensis | - | New york fern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Thelypteridaceae | Thelypteris | palustris | - | Marsh fern | Here | Phenology |
| 1 | Filicopsida | Polypodiales | Thelypteridaceae | Thelypteris | species ** | - | (NA) | Here | Phenology |