§1 Plant
Carex swanii (Fernald) Mack.
vernacular Swan's sedge — species · Cyperaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Perennial
- Group
- Monocot
- Family
- Cyperaceae Juss.
- Genus
- Carex
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 535 counties across 25 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 535 counties across 25 states/territories.
Arkansas view state ↗ 4 N ▾
Delaware view state ↗ 3 N ▾
District of Columbia view state ↗ 1 N ▾
Illinois view state ↗ 20 N ▾
Indiana view state ↗ 47 N ▾
- Allen 18003
- Bartholomew 18005
- Boone 18011
- Cass 18017
- Clark 18019
- Clay 18021
- Crawford 18025
- Daviess 18027
- Decatur 18031
- Elkhart 18039
- Fountain 18045
- Fulton 18049
- Gibson 18051
- Harrison 18061
- Howard 18067
- Jackson 18071
- Jasper 18073
- Jefferson 18077
- Jennings 18079
- Johnson 18081
- Kosciusko 18085
- Lagrange 18087
- Lake 18089
- LaPorte 18091
- Lawrence 18093
- Marion 18097
- Marshall 18099
- Martin 18101
- Miami 18103
- Montgomery 18107
- Morgan 18109
- Newton 18111
- Owen 18119
- Parke 18121
- Porter 18127
- Pulaski 18131
- Putnam 18133
- Spencer 18147
- St. Joseph 18141
- Starke 18149
- Steuben 18151
- Sullivan 18153
- Tippecanoe 18157
- Wabash 18169
- Warren 18171
- Washington 18175
- Whitley 18183
Kentucky view state ↗ 48 N ▾
- Adair 21001
- Ballard 21007
- Barren 21009
- Bath 21011
- Bell 21013
- Boone 21015
- Boyle 21021
- Calloway 21035
- Campbell 21037
- Carlisle 21039
- Carter 21043
- Casey 21045
- Christian 21047
- Clark 21049
- Clinton 21053
- Edmonson 21061
- Elliott 21063
- Estill 21065
- Fleming 21069
- Floyd 21071
- Franklin 21073
- Garrard 21079
- Graves 21083
- Hardin 21093
- Harrison 21097
- Hickman 21105
- Hopkins 21107
- Jefferson 21111
- Larue 21123
- Laurel 21125
- Lee 21129
- Letcher 21133
- Lewis 21135
- Lincoln 21137
- Madison 21151
- McCracken 21145
- McCreary 21147
- McLean 21149
- Montgomery 21173
- Muhlenberg 21177
- Nelson 21179
- Owsley 21189
- Pike 21195
- Pulaski 21199
- Rockcastle 21203
- Rowan 21205
- Warren 21227
- Wolfe 21237
Maine view state ↗ 6 N ▾
Maryland view state ↗ 24 N ▾
- Allegany 24001
- Anne Arundel 24003
- Baltimore 24005
- Baltimore (city) 24510
- Calvert 24009
- Caroline 24011
- Carroll 24013
- Cecil 24015
- Charles 24017
- Dorchester 24019
- Frederick 24021
- Garrett 24023
- Harford 24025
- Howard 24027
- Kent 24029
- Montgomery 24031
- Prince George's 24033
- Queen Anne's 24035
- Somerset 24039
- St. Mary's 24037
- Talbot 24041
- Washington 24043
- Wicomico 24045
- Worcester 24047
Massachusetts view state ↗ 14 N ▾
Michigan view state ↗ 21 N ▾
Mississippi view state ↗ 4 N ▾
Missouri view state ↗ 11 N ▾
New Hampshire view state ↗ 9 N ▾
New Jersey view state ↗ 21 N ▾
New York view state ↗ 43 N ▾
- Albany 36001
- Bronx 36005
- Cattaraugus 36009
- Cayuga 36011
- Chautauqua 36013
- Chenango 36017
- Columbia 36021
- Delaware 36025
- Dutchess 36027
- Erie 36029
- Franklin 36033
- Fulton 36035
- Hamilton 36041
- Herkimer 36043
- Jefferson 36045
- Kings 36047
- Lewis 36049
- Madison 36053
- Nassau 36059
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Orange 36071
- Orleans 36073
- Oswego 36075
- Putnam 36079
- Queens 36081
- Rensselaer 36083
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- St. Lawrence 36089
- Suffolk 36103
- Sullivan 36105
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
- Yates 36123
North Carolina view state ↗ 17 N ▾
Ohio view state ↗ 31 N ▾
- Adams 39001
- Allen 39003
- Ashland 39005
- Ashtabula 39007
- Auglaize 39011
- Clinton 39027
- Columbiana 39029
- Coshocton 39031
- Cuyahoga 39035
- Delaware 39041
- Erie 39043
- Fairfield 39045
- Geauga 39055
- Hamilton 39061
- Henry 39069
- Highland 39071
- Jackson 39079
- Lake 39085
- Lorain 39093
- Lucas 39095
- Madison 39097
- Medina 39103
- Morrow 39117
- Paulding 39125
- Portage 39133
- Seneca 39147
- Summit 39153
- Trumbull 39155
- Tuscarawas 39157
- Wayne 39169
- Wood 39173
Pennsylvania view state ↗ 66 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
- York 42133
Rhode Island view state ↗ 5 N ▾
South Carolina view state ↗ 1 N ▾
Tennessee view state ↗ 40 N ▾
- Anderson 47001
- Bledsoe 47007
- Blount 47009
- Bradley 47011
- Cannon 47015
- Carroll 47017
- Carter 47019
- Cheatham 47021
- Cocke 47029
- Coffee 47031
- Cumberland 47035
- DeKalb 47041
- Dickson 47043
- Fentress 47049
- Franklin 47051
- Grundy 47061
- Hardeman 47069
- Hickman 47081
- Houston 47083
- Johnson 47091
- Lincoln 47103
- Macon 47111
- Marshall 47117
- McMinn 47107
- Montgomery 47125
- Morgan 47129
- Pickett 47137
- Putnam 47141
- Rhea 47143
- Roane 47145
- Sequatchie 47153
- Sevier 47155
- Shelby 47157
- Stewart 47161
- Sullivan 47163
- Sumner 47165
- Unicoi 47171
- Van Buren 47175
- Wayne 47181
- White 47185
Vermont view state ↗ 8 N ▾
Virginia view state ↗ 71 N ▾
- Accomack 51001
- Albemarle 51003
- Alleghany 51005
- Amherst 51009
- Arlington 51013
- Augusta 51015
- Bath 51017
- Bland 51021
- Buchanan 51027
- Caroline 51033
- Carroll 51035
- Charles City 51036
- Chesapeake (city) 51550
- Chesterfield 51041
- Clarke 51043
- Craig 51045
- Culpeper 51047
- Dickenson 51051
- Fairfax 51059
- Fauquier 51061
- Floyd 51063
- Fluvanna 51065
- Frederick 51069
- Giles 51071
- Gloucester 51073
- Goochland 51075
- Grayson 51077
- Greene 51079
- Hanover 51085
- Henrico 51087
- Henry 51089
- Highland 51091
- Isle of Wight 51093
- James City 51095
- King and Queen 51097
- King George 51099
- Lee 51105
- Loudoun 51107
- Louisa 51109
- Madison 51113
- Mathews 51115
- Middlesex 51119
- Nelson 51125
- New Kent 51127
- Newport News (city) 51700
- Northampton 51131
- Orange 51137
- Page 51139
- Patrick 51141
- Powhatan 51145
- Prince George 51149
- Prince William 51153
- Rappahannock 51157
- Rockbridge 51163
- Rockingham 51165
- Russell 51167
- Scott 51169
- Shenandoah 51171
- Smyth 51173
- Southampton 51175
- Stafford 51179
- Suffolk (city) 51800
- Surry 51181
- Sussex 51183
- Tazewell 51185
- Virginia Beach (city) 51810
- Warren 51187
- Westmoreland 51193
- Wise 51195
- Wythe 51197
- York 51199
West Virginia view state ↗ 15 N ▾
Wisconsin view state ↗ 5 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/CASW ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2723557 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z