Index / Search / Cystopteris fragilis
§1 Plant
Cystopteris fragilis (L.) Bernh.
vernacular brittle bladderfern — species · Dryopteridaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Fern
- Family
- Dryopteridaceae Herter
- Genus
- Cystopteris
§2a
Native status, by region
- AK Alaska Native
- CAN Canada Native
- GL Greenland Native
- HI Hawaii Introduced
- L48 Lower 48 States Native
- SPM St. Pierre & Miquelon Native
§2b
County-level range
· 618 counties across 31 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 618 counties across 31 states/territories.
Alaska view state ↗ 23 N ▾
- Aleutians East 02013
- Aleutians West 02016
- Anchorage 02020
- Bethel 02050
- Chugach 02063
- Copper River 02066
- Denali 02068
- Dillingham 02070
- Fairbanks North Star 02090
- Haines 02100
- Juneau 02110
- Kenai Peninsula 02122
- Ketchikan Gateway 02130
- Kodiak Island 02150
- Lake and Peninsula 02164
- Matanuska-Susitna 02170
- Nome 02180
- North Slope 02185
- Northwest Arctic 02188
- Sitka 02220
- Southeast Fairbanks 02240
- Yakutat 02282
- Yukon-Koyukuk 02290
Arizona view state ↗ 10 N ▾
California view state ↗ 43 N ▾
- Alpine 06003
- Butte 06007
- Calaveras 06009
- Colusa 06011
- Contra Costa 06013
- El Dorado 06017
- Fresno 06019
- Glenn 06021
- Humboldt 06023
- Inyo 06027
- Kern 06029
- Lake 06033
- Lassen 06035
- Los Angeles 06037
- Madera 06039
- Marin 06041
- Mariposa 06043
- Mendocino 06045
- Modoc 06049
- Mono 06051
- Monterey 06053
- Nevada 06057
- Orange 06059
- Placer 06061
- Plumas 06063
- Riverside 06065
- San Benito 06069
- San Bernardino 06071
- San Diego 06073
- San Luis Obispo 06079
- Santa Barbara 06083
- Santa Clara 06085
- Santa Cruz 06087
- Shasta 06089
- Sierra 06091
- Siskiyou 06093
- Sonoma 06097
- Stanislaus 06099
- Tehama 06103
- Trinity 06105
- Tulare 06107
- Tuolumne 06109
- Ventura 06111
Colorado view state ↗ 37 N ▾
- Archuleta 08007
- Baca 08009
- Boulder 08013
- Chaffee 08015
- Clear Creek 08019
- Custer 08027
- Delta 08029
- Douglas 08035
- Eagle 08037
- El Paso 08041
- Fremont 08043
- Garfield 08045
- Gilpin 08047
- Grand 08049
- Gunnison 08051
- Hinsdale 08053
- Huerfano 08055
- Jefferson 08059
- La Plata 08067
- Larimer 08069
- Las Animas 08071
- Mesa 08077
- Mineral 08079
- Moffat 08081
- Montezuma 08083
- Montrose 08085
- Ouray 08091
- Park 08093
- Pitkin 08097
- Pueblo 08101
- Rio Blanco 08103
- Rio Grande 08105
- Routt 08107
- San Juan 08111
- San Miguel 08113
- Summit 08117
- Teller 08119
Idaho view state ↗ 27 N ▾
- Ada 16001
- Adams 16003
- Bear Lake 16007
- Benewah 16009
- Blaine 16013
- Boise 16015
- Bonner 16017
- Bonneville 16019
- Butte 16023
- Caribou 16029
- Cassia 16031
- Clark 16033
- Clearwater 16035
- Custer 16037
- Elmore 16039
- Fremont 16043
- Idaho 16049
- Kootenai 16055
- Latah 16057
- Lemhi 16059
- Lincoln 16063
- Nez Perce 16069
- Owyhee 16073
- Shoshone 16079
- Teton 16081
- Twin Falls 16083
- Valley 16085
Illinois view state ↗ 2 N ▾
Iowa view state ↗ 15 N ▾
Kansas view state ↗ 14 N ▾
Kentucky view state ↗ 2 N ▾
Maine view state ↗ 16 N ▾
Massachusetts view state ↗ 10 N ▾
Minnesota view state ↗ 36 N ▾
- Becker 27005
- Blue Earth 27013
- Brown 27015
- Carlton 27017
- Carver 27019
- Cass 27021
- Chippewa 27023
- Chisago 27025
- Clay 27027
- Clearwater 27029
- Cook 27031
- Cottonwood 27033
- Dakota 27037
- Douglas 27041
- Fillmore 27045
- Goodhue 27049
- Itasca 27061
- Koochiching 27071
- Lake 27075
- Lake of the Woods 27077
- Mille Lacs 27095
- Morrison 27097
- Pine 27115
- Pipestone 27117
- Polk 27119
- Pope 27121
- Ramsey 27123
- Redwood 27127
- Renville 27129
- Sherburne 27141
- St. Louis 27137
- Todd 27153
- Washington 27163
- Winona 27169
- Wright 27171
- Yellow Medicine 27173
Missouri view state ↗ 1 N ▾
Montana view state ↗ 13 N ▾
Nebraska view state ↗ 25 N ▾
- Antelope 31003
- Brown 31017
- Cass 31025
- Cherry 31031
- Cuming 31039
- Custer 31041
- Dakota 31043
- Dawes 31045
- Dixon 31051
- Douglas 31055
- Garfield 31071
- Holt 31089
- Jefferson 31095
- Johnson 31097
- Keya Paha 31103
- Knox 31107
- Lancaster 31109
- Morrill 31123
- Richardson 31147
- Rock 31149
- Seward 31159
- Sheridan 31161
- Sioux 31165
- Thomas 31171
- Webster 31181
Nevada view state ↗ 14 N ▾
New Hampshire view state ↗ 10 N ▾
New Jersey view state ↗ 13 N ▾
New Mexico view state ↗ 15 N ▾
New York view state ↗ 58 N ▾
- Albany 36001
- Allegany 36003
- Bronx 36005
- Cattaraugus 36009
- Cayuga 36011
- Chautauqua 36013
- Chemung 36015
- Chenango 36017
- Clinton 36019
- Columbia 36021
- Cortland 36023
- Delaware 36025
- Dutchess 36027
- Erie 36029
- Essex 36031
- Franklin 36033
- Genesee 36037
- Greene 36039
- Hamilton 36041
- Herkimer 36043
- Jefferson 36045
- Lewis 36049
- Livingston 36051
- Madison 36053
- Monroe 36055
- Montgomery 36057
- Nassau 36059
- New York 36061
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Orleans 36073
- Oswego 36075
- Otsego 36077
- Putnam 36079
- Rensselaer 36083
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- Schoharie 36095
- Schuyler 36097
- Seneca 36099
- St. Lawrence 36089
- Steuben 36101
- Suffolk 36103
- Sullivan 36105
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
- Wyoming 36121
- Yates 36123
North Dakota view state ↗ 26 N ▾
- Adams 38001
- Barnes 38003
- Benson 38005
- Billings 38007
- Burke 38013
- Dunn 38025
- Emmons 38029
- Golden Valley 38033
- Grant 38037
- McKenzie 38053
- McLean 38055
- Mercer 38057
- Morton 38059
- Mountrail 38061
- Oliver 38065
- Pierce 38069
- Ransom 38073
- Richland 38077
- Sargent 38081
- Sioux 38085
- Slope 38087
- Stark 38089
- Steele 38091
- Stutsman 38093
- Ward 38101
- Williams 38105
Ohio view state ↗ 2 N ▾
Oregon view state ↗ 31 N ▾
- Baker 41001
- Benton 41003
- Clackamas 41005
- Clatsop 41007
- Columbia 41009
- Coos 41011
- Crook 41013
- Curry 41015
- Deschutes 41017
- Douglas 41019
- Grant 41023
- Harney 41025
- Hood River 41027
- Jackson 41029
- Josephine 41033
- Klamath 41035
- Lake 41037
- Lane 41039
- Linn 41043
- Malheur 41045
- Marion 41047
- Morrow 41049
- Multnomah 41051
- Polk 41053
- Umatilla 41059
- Union 41061
- Wallowa 41063
- Wasco 41065
- Washington 41067
- Wheeler 41069
- Yamhill 41071
Pennsylvania view state ↗ 31 N ▾
- Allegheny 42003
- Armstrong 42005
- Beaver 42007
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Butler 42019
- Cameron 42023
- Centre 42027
- Clinton 42035
- Erie 42049
- Fayette 42051
- Greene 42059
- Huntingdon 42061
- Indiana 42063
- Lawrence 42073
- Luzerne 42079
- Lycoming 42081
- Mercer 42085
- Montgomery 42091
- Northampton 42095
- Pike 42103
- Schuylkill 42107
- Somerset 42111
- Sullivan 42113
- Tioga 42117
- Warren 42123
- Wayne 42127
- Wyoming 42131
South Dakota view state ↗ 20 N ▾
Utah view state ↗ 26 N ▾
- Beaver 49001
- Box Elder 49003
- Cache 49005
- Carbon 49007
- Daggett 49009
- Duchesne 49013
- Emery 49015
- Garfield 49017
- Grand 49019
- Iron 49021
- Juab 49023
- Kane 49025
- Millard 49027
- Piute 49031
- Salt Lake 49035
- San Juan 49037
- Sanpete 49039
- Sevier 49041
- Summit 49043
- Tooele 49045
- Uintah 49047
- Utah 49049
- Wasatch 49051
- Washington 49053
- Wayne 49055
- Weber 49057
Vermont view state ↗ 13 N ▾
Virginia view state ↗ 1 N ▾
Washington view state ↗ 34 N ▾
- Asotin 53003
- Benton 53005
- Chelan 53007
- Clallam 53009
- Columbia 53013
- Cowlitz 53015
- Douglas 53017
- Ferry 53019
- Garfield 53023
- Grant 53025
- Grays Harbor 53027
- Jefferson 53031
- King 53033
- Kitsap 53035
- Kittitas 53037
- Klickitat 53039
- Lewis 53041
- Lincoln 53043
- Okanogan 53047
- Pacific 53049
- Pend Oreille 53051
- Pierce 53053
- San Juan 53055
- Skagit 53057
- Skamania 53059
- Snohomish 53061
- Spokane 53063
- Stevens 53065
- Thurston 53067
- Wahkiakum 53069
- Walla Walla 53071
- Whatcom 53073
- Whitman 53075
- Yakima 53077
Wisconsin view state ↗ 31 N ▾
- Adams 55001
- Ashland 55003
- Bayfield 55007
- Brown 55009
- Clark 55019
- Columbia 55021
- Dane 55025
- Door 55029
- Douglas 55031
- Dunn 55033
- Florence 55037
- Iowa 55049
- Iron 55051
- Kenosha 55059
- Manitowoc 55071
- Marathon 55073
- Oconto 55083
- Outagamie 55087
- Ozaukee 55089
- Pierce 55093
- Polk 55095
- Racine 55101
- Rusk 55107
- Sauk 55111
- Shawano 55115
- Sheboygan 55117
- St. Croix 55109
- Taylor 55119
- Walworth 55127
- Washington 55131
- Waupaca 55135
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/CYFR2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2650818 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z