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
· 274 counties across 14 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 274 counties across 14 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
Kentucky view state ↗ 3 N ▾
Maine view state ↗ 15 N ▾
Massachusetts view state ↗ 14 N ▾
New Hampshire view state ↗ 10 N ▾
New Jersey view state ↗ 6 N ▾
New York view state ↗ 14 N ▾
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 ▾
§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 2026-05-26T06:33:17Z