Index / Search / Athyrium filix-femina ssp. angustum
§1 Plant
Athyrium filix-femina (L.) Roth ssp. angustum (Willd.) R.T. Clausen
vernacular subarctic ladyfern — subspecies · Dryopteridaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Fern
- Family
- Dryopteridaceae Herter
- Genus
- Athyrium
§2a
Native status, by region
- CAN Canada Native
- GL Greenland Native
- L48 Lower 48 States Native
- SPM St. Pierre & Miquelon Native
§2b
County-level range
· 525 counties across 21 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 525 counties across 21 states/territories.
Delaware view state ↗ 3 N ▾
District of Columbia view state ↗ 1 N ▾
Illinois view state ↗ 73 N ▾
- Alexander 17003
- Boone 17007
- Brown 17009
- Bureau 17011
- Carroll 17015
- Cass 17017
- Clark 17023
- Coles 17029
- Cook 17031
- Crawford 17033
- Cumberland 17035
- De Witt 17039
- DeKalb 17037
- Douglas 17041
- DuPage 17043
- Franklin 17055
- Fulton 17057
- Gallatin 17059
- Grundy 17063
- Hamilton 17065
- Hancock 17067
- Hardin 17069
- Henderson 17071
- Henry 17073
- Jackson 17077
- Jersey 17083
- Jo Daviess 17085
- Johnson 17087
- Kane 17089
- Kankakee 17091
- Knox 17095
- Lake 17097
- LaSalle 17099
- Lee 17103
- Logan 17107
- Macon 17115
- Marshall 17123
- Mason 17125
- Massac 17127
- McDonough 17109
- McHenry 17111
- McLean 17113
- Menard 17129
- Montgomery 17135
- Ogle 17141
- Peoria 17143
- Perry 17145
- Piatt 17147
- Pike 17149
- Pope 17151
- Pulaski 17153
- Randolph 17157
- Richland 17159
- Rock Island 17161
- Saline 17165
- Sangamon 17167
- Schuyler 17169
- Scott 17171
- Stark 17175
- Stephenson 17177
- Tazewell 17179
- Union 17181
- Vermilion 17183
- Wabash 17185
- Warren 17187
- Washington 17189
- Wayne 17191
- White 17193
- Whiteside 17195
- Will 17197
- Williamson 17199
- Winnebago 17201
- Woodford 17203
Indiana view state ↗ 36 N ▾
- Bartholomew 18005
- Blackford 18009
- Brown 18013
- Cass 18017
- Clark 18019
- Clay 18021
- Crawford 18025
- DeKalb 18033
- Delaware 18035
- Fountain 18045
- Greene 18055
- Jefferson 18077
- Jennings 18079
- Knox 18083
- Kosciusko 18085
- Lagrange 18087
- LaPorte 18091
- Marion 18097
- Marshall 18099
- Monroe 18105
- Morgan 18109
- Newton 18111
- Orange 18117
- Perry 18123
- Porter 18127
- Posey 18129
- Pulaski 18131
- Ripley 18137
- Scott 18143
- St. Joseph 18141
- Steuben 18151
- Switzerland 18155
- Wabash 18169
- Wells 18179
- White 18181
- Whitley 18183
Iowa view state ↗ 58 N ▾
- Allamakee 19005
- Appanoose 19007
- Benton 19011
- Boone 19015
- Carroll 19027
- Cass 19029
- Cedar 19031
- Cerro Gordo 19033
- Chickasaw 19037
- Clay 19041
- Clayton 19043
- Clinton 19045
- Crawford 19047
- Davis 19051
- Decatur 19053
- Delaware 19055
- Des Moines 19057
- Dickinson 19059
- Dubuque 19061
- Emmet 19063
- Fayette 19065
- Floyd 19067
- Franklin 19069
- Guthrie 19077
- Hancock 19081
- Hardin 19083
- Harrison 19085
- Iowa 19095
- Jackson 19097
- Jasper 19099
- Jefferson 19101
- Johnson 19103
- Jones 19105
- Kossuth 19109
- Lee 19111
- Linn 19113
- Louisa 19115
- Lucas 19117
- Lyon 19119
- Mahaska 19123
- Marion 19125
- Marshall 19127
- Mitchell 19131
- Monona 19133
- Muscatine 19139
- Polk 19153
- Pottawattamie 19155
- Poweshiek 19157
- Ringgold 19159
- Shelby 19165
- Story 19169
- Van Buren 19177
- Warren 19181
- Wayne 19185
- Webster 19187
- Winnebago 19189
- Winneshiek 19191
- Worth 19195
Kansas view state ↗ 3 N ▾
Kentucky view state ↗ 3 N ▾
Maine view state ↗ 15 N ▾
Massachusetts view state ↗ 14 N ▾
Michigan view state ↗ 1 N ▾
Minnesota view state ↗ 2 N ▾
Missouri view state ↗ 44 N ▾
- Adair 29001
- Barton 29011
- Bollinger 29017
- Boone 29019
- Butler 29023
- Carter 29035
- Clark 29045
- Clay 29047
- Crawford 29055
- Douglas 29067
- Greene 29077
- Grundy 29079
- Harrison 29081
- Howell 29091
- Iron 29093
- Jackson 29095
- Jasper 29097
- Knox 29103
- Lincoln 29113
- Livingston 29117
- Macon 29121
- Madison 29123
- Marion 29127
- Mercer 29129
- Montgomery 29139
- Nodaway 29147
- Oregon 29149
- Ozark 29153
- Perry 29157
- Pike 29163
- Putnam 29171
- Ralls 29173
- Randolph 29175
- Ripley 29181
- Saline 29195
- Schuyler 29197
- Scotland 29199
- Scott 29201
- Shannon 29203
- Shelby 29205
- St. Louis 29189
- Ste. Genevieve 29186
- Sullivan 29211
- Wayne 29223
New Hampshire view state ↗ 10 N ▾
New Jersey view state ↗ 6 N ▾
New York view state ↗ 14 N ▾
Ohio view state ↗ 72 N ▾
- Adams 39001
- Allen 39003
- Ashland 39005
- Ashtabula 39007
- Athens 39009
- Auglaize 39011
- Belmont 39013
- Brown 39015
- Butler 39017
- Carroll 39019
- Clark 39023
- Clermont 39025
- Clinton 39027
- Columbiana 39029
- Coshocton 39031
- Crawford 39033
- Cuyahoga 39035
- Defiance 39039
- Erie 39043
- Fairfield 39045
- Franklin 39049
- Fulton 39051
- Gallia 39053
- Geauga 39055
- Guernsey 39059
- Hamilton 39061
- Hancock 39063
- Harrison 39067
- Henry 39069
- Highland 39071
- Hocking 39073
- Holmes 39075
- Huron 39077
- Jackson 39079
- Jefferson 39081
- Knox 39083
- Lake 39085
- Lawrence 39087
- Licking 39089
- Logan 39091
- Lorain 39093
- Lucas 39095
- Madison 39097
- Mahoning 39099
- Medina 39103
- Meigs 39105
- Monroe 39111
- Montgomery 39113
- Morgan 39115
- Morrow 39117
- Muskingum 39119
- Noble 39121
- Perry 39127
- Pike 39131
- Portage 39133
- Putnam 39137
- Richland 39139
- Ross 39141
- Sandusky 39143
- Scioto 39145
- Stark 39151
- Summit 39153
- Trumbull 39155
- Tuscarawas 39157
- Union 39159
- Van Wert 39161
- Vinton 39163
- Washington 39167
- Wayne 39169
- Williams 39171
- Wood 39173
- Wyandot 39175
Pennsylvania view state ↗ 67 N ▾
- Adams 42001
- Allegheny 42003
- Armstrong 42005
- Beaver 42007
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Butler 42019
- Cambria 42021
- Cameron 42023
- Carbon 42025
- Centre 42027
- Chester 42029
- Clarion 42031
- Clearfield 42033
- Clinton 42035
- Columbia 42037
- Crawford 42039
- Cumberland 42041
- Dauphin 42043
- Delaware 42045
- Elk 42047
- Erie 42049
- Fayette 42051
- Forest 42053
- Franklin 42055
- Fulton 42057
- Greene 42059
- Huntingdon 42061
- Indiana 42063
- Jefferson 42065
- Juniata 42067
- Lackawanna 42069
- Lancaster 42071
- Lawrence 42073
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- Lycoming 42081
- McKean 42083
- Mercer 42085
- Mifflin 42087
- Monroe 42089
- Montgomery 42091
- Montour 42093
- Northampton 42095
- Northumberland 42097
- Perry 42099
- Philadelphia 42101
- Pike 42103
- Potter 42105
- Schuylkill 42107
- Snyder 42109
- Somerset 42111
- Sullivan 42113
- Susquehanna 42115
- Tioga 42117
- Union 42119
- Venango 42121
- Warren 42123
- Washington 42125
- Wayne 42127
- Westmoreland 42129
- Wyoming 42131
- York 42133
Tennessee view state ↗ 1 N ▾
Vermont view state ↗ 14 N ▾
West Virginia view state ↗ 17 N ▾
Wisconsin view state ↗ 71 N ▾
- Adams 55001
- Ashland 55003
- Barron 55005
- Bayfield 55007
- Brown 55009
- Buffalo 55011
- Burnett 55013
- Calumet 55015
- Chippewa 55017
- Clark 55019
- Columbia 55021
- Crawford 55023
- Dane 55025
- Dodge 55027
- Door 55029
- Douglas 55031
- Dunn 55033
- Eau Claire 55035
- Florence 55037
- Fond du Lac 55039
- Forest 55041
- Grant 55043
- Green 55045
- Green Lake 55047
- Iowa 55049
- Iron 55051
- Jackson 55053
- Jefferson 55055
- Kenosha 55059
- Kewaunee 55061
- La Crosse 55063
- Lafayette 55065
- Langlade 55067
- Lincoln 55069
- Manitowoc 55071
- Marathon 55073
- Marinette 55075
- Marquette 55077
- Menominee 55078
- Milwaukee 55079
- Monroe 55081
- Oconto 55083
- Oneida 55085
- Outagamie 55087
- Ozaukee 55089
- Pepin 55091
- Pierce 55093
- Polk 55095
- Portage 55097
- Price 55099
- Racine 55101
- Richland 55103
- Rock 55105
- Rusk 55107
- Sauk 55111
- Sawyer 55113
- Shawano 55115
- Sheboygan 55117
- St. Croix 55109
- Taylor 55119
- Trempealeau 55121
- Vernon 55123
- Vilas 55125
- Walworth 55127
- Washburn 55129
- Washington 55131
- Waukesha 55133
- Waupaca 55135
- Waushara 55137
- Winnebago 55139
- Wood 55141
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/ATFIA ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/6388270 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z