Index / Search / Cyperus erythrorhizos
§1 Plant
Cyperus erythrorhizos Muhl.
vernacular redroot flatsedge — species · Cyperaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Annual, Perennial
- Group
- Monocot
- Family
- Cyperaceae Juss.
- Genus
- Cyperus
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 524 counties across 28 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Medium
- Shade
- High
- Moisture use
- Medium
- Fire
- Low
- Salinity
- None
- Anaerobic
- Medium
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- 37 °F minimum
- Frost-free days
- 90 min.
- Precipitation
- 14–50 in/yr
- pH range
- 5–6.5
- Root depth
- 10 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Bunch
- Growth rate
- Rapid
- Lifespan
- Short
- Mature height
- 2.5 ft
- Foliage texture
- Coarse
- Foliage colour
- Dark Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Green
- Fruit colour
- White
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Mid Summer
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- No
- Propagation
- sprigs
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Graze palatability
- Low
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 524 counties across 28 states/territories.
Alabama view state ↗ 9 N ▾
Arizona view state ↗ 5 N ▾
Arkansas view state ↗ 32 N ▾
- Ashley 05003
- Bradley 05011
- Carroll 05015
- Chicot 05017
- Clay 05021
- Cleburne 05023
- Cleveland 05025
- Craighead 05031
- Crittenden 05035
- Desha 05041
- Drew 05043
- Franklin 05047
- Hempstead 05057
- Hot Spring 05059
- Jefferson 05069
- Logan 05083
- Lonoke 05085
- Miller 05091
- Mississippi 05093
- Monroe 05095
- Ouachita 05103
- Phillips 05107
- Poinsett 05111
- Polk 05113
- Prairie 05117
- Pulaski 05119
- Saline 05125
- St. Francis 05123
- Stone 05137
- Union 05139
- Washington 05143
- Yell 05149
Delaware view state ↗ 3 N ▾
District of Columbia view state ↗ 1 N ▾
Florida view state ↗ 14 N ▾
Georgia view state ↗ 10 N ▾
Illinois view state ↗ 61 N ▾
- Adams 17001
- Alexander 17003
- Boone 17007
- Brown 17009
- Bureau 17011
- Calhoun 17013
- Cass 17017
- Christian 17021
- Clinton 17027
- Coles 17029
- Cook 17031
- DeKalb 17037
- DuPage 17043
- Edwards 17047
- Fayette 17051
- Ford 17053
- Fulton 17057
- Greene 17061
- Grundy 17063
- Hardin 17069
- Henderson 17071
- Jackson 17077
- Jefferson 17081
- Jersey 17083
- Jo Daviess 17085
- Johnson 17087
- Kane 17089
- Kankakee 17091
- Kendall 17093
- Knox 17095
- Lake 17097
- Lawrence 17101
- Lee 17103
- Livingston 17105
- Macon 17115
- Macoupin 17117
- Madison 17119
- Mason 17125
- Massac 17127
- McHenry 17111
- Menard 17129
- Monroe 17133
- Morgan 17137
- Peoria 17143
- Perry 17145
- Pope 17151
- Pulaski 17153
- Randolph 17157
- Saline 17165
- Sangamon 17167
- Scott 17171
- St. Clair 17163
- Tazewell 17179
- Union 17181
- Vermilion 17183
- Wabash 17185
- White 17193
- Will 17197
- Williamson 17199
- Winnebago 17201
- Woodford 17203
Indiana view state ↗ 34 N ▾
- Blackford 18009
- Boone 18011
- Daviess 18027
- Gibson 18051
- Greene 18055
- Hamilton 18057
- Harrison 18061
- Jackson 18071
- Jasper 18073
- Jefferson 18077
- Knox 18083
- Lake 18089
- LaPorte 18091
- Lawrence 18093
- Madison 18095
- Marion 18097
- Marshall 18099
- Monroe 18105
- Newton 18111
- Noble 18113
- Perry 18123
- Porter 18127
- Posey 18129
- Spencer 18147
- St. Joseph 18141
- Starke 18149
- Sullivan 18153
- Tipton 18159
- Union 18161
- Wabash 18169
- Warrick 18173
- Wayne 18177
- Wells 18179
- White 18181
Iowa view state ↗ 11 N ▾
Kansas view state ↗ 20 N ▾
Kentucky view state ↗ 45 N ▾
- Ballard 21007
- Bath 21011
- Boone 21015
- Bracken 21023
- Campbell 21037
- Carlisle 21039
- Crittenden 21055
- Edmonson 21061
- Estill 21065
- Fulton 21075
- Garrard 21079
- Greenup 21089
- Hardin 21093
- Harrison 21097
- Hart 21099
- Henderson 21101
- Henry 21103
- Hickman 21105
- Hopkins 21107
- Jefferson 21111
- Kenton 21117
- Knox 21121
- Laurel 21125
- Lawrence 21127
- Lewis 21135
- Livingston 21139
- Lyon 21143
- Madison 21151
- Marshall 21157
- Mason 21161
- McCracken 21145
- McCreary 21147
- McLean 21149
- Montgomery 21173
- Ohio 21183
- Oldham 21185
- Perry 21193
- Pulaski 21199
- Rockcastle 21203
- Rowan 21205
- Todd 21219
- Trigg 21221
- Trimble 21223
- Union 21225
- Whitley 21235
Louisiana view state ↗ 58 N ▾
- Acadia 22001
- Allen 22003
- Assumption 22007
- Avoyelles 22009
- Bienville 22013
- Bossier 22015
- Caddo 22017
- Calcasieu 22019
- Caldwell 22021
- Cameron 22023
- Catahoula 22025
- Claiborne 22027
- De Soto 22031
- East Baton Rouge 22033
- East Carroll 22035
- East Feliciana 22037
- Franklin 22041
- Grant 22043
- Iberia 22045
- Iberville 22047
- Jackson 22049
- Jefferson 22051
- Lafayette 22055
- Lafourche 22057
- LaSalle 22059
- Lincoln 22061
- Livingston 22063
- Madison 22065
- Morehouse 22067
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Plaquemines 22075
- Rapides 22079
- Red River 22081
- Richland 22083
- Sabine 22085
- St. Bernard 22087
- St. Charles 22089
- St. Helena 22091
- St. James 22093
- St. John the Baptist 22095
- St. Landry 22097
- St. Martin 22099
- St. Mary 22101
- St. Tammany 22103
- Tangipahoa 22105
- Tensas 22107
- Terrebonne 22109
- Union 22111
- Vermilion 22113
- Vernon 22115
- Washington 22117
- Webster 22119
- West Baton Rouge 22121
- West Carroll 22123
- West Feliciana 22125
- Winn 22127
Maine view state ↗ 1 N ▾
Massachusetts view state ↗ 10 N ▾
Michigan view state ↗ 17 N ▾
Minnesota view state ↗ 35 N ▾
- Benton 27009
- Big Stone 27011
- Blue Earth 27013
- Cass 27021
- Chippewa 27023
- Chisago 27025
- Clay 27027
- Cottonwood 27033
- Dakota 27037
- Freeborn 27047
- Goodhue 27049
- Hennepin 27053
- Houston 27055
- Isanti 27059
- Kanabec 27065
- Kittson 27069
- Lac qui Parle 27073
- Meeker 27093
- Morrison 27097
- Murray 27101
- Norman 27107
- Pipestone 27117
- Polk 27119
- Ramsey 27123
- Rice 27131
- Rock 27133
- Sherburne 27141
- Swift 27151
- Traverse 27155
- Wabasha 27157
- Waseca 27161
- Washington 27163
- Wilkin 27167
- Wright 27171
- Yellow Medicine 27173
Mississippi view state ↗ 21 N ▾
Montana view state ↗ 1 N ▾
New Jersey view state ↗ 14 N ▾
New York view state ↗ 16 N ▾
North Carolina view state ↗ 16 N ▾
Pennsylvania view state ↗ 13 N ▾
Rhode Island view state ↗ 1 N ▾
South Carolina view state ↗ 15 N ▾
Tennessee view state ↗ 24 N ▾
- Chester 47023
- Cumberland 47035
- Davidson 47037
- Decatur 47039
- DeKalb 47041
- Franklin 47051
- Grainger 47057
- Hardeman 47069
- Hardin 47071
- Hawkins 47073
- Haywood 47075
- Henry 47079
- Humphreys 47085
- Knox 47093
- Lake 47095
- Marion 47115
- Meigs 47121
- Montgomery 47125
- Obion 47131
- Overton 47133
- Shelby 47157
- Stewart 47161
- Tipton 47167
- Wayne 47181
Virginia view state ↗ 31 N ▾
- Accomack 51001
- Albemarle 51003
- Bedford 51019
- Brunswick 51025
- Caroline 51033
- Charles City 51036
- Chesapeake (city) 51550
- Chesterfield 51041
- Cumberland 51049
- Dinwiddie 51053
- Fairfax 51059
- Fauquier 51061
- Hampton (city) 51650
- Hanover 51085
- Henrico 51087
- King George 51099
- King William 51101
- Loudoun 51107
- Mecklenburg 51117
- Newport News (city) 51700
- Northampton 51131
- Powhatan 51145
- Prince Edward 51147
- Prince George 51149
- Prince William 51153
- Rockingham 51165
- Southampton 51175
- Spotsylvania 51177
- Stafford 51179
- Surry 51181
- Virginia Beach (city) 51810
West Virginia view state ↗ 6 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/CYER2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/6417217 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T07:25:30Z