Cyperus erythrorhizos

ClassificationMonocots
FamilyCyperaceae
Family (Traditional)Cyperaceae
GenusCyperus
Species:Cyperus erythrorhizos Muhl.
Common NameRedroot Flatsedge
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: DRU; Natural Area Presence: LC; Natural Area Presence: NRG; Duration: Annual; Duration: Perennial; General Ecology: Mudflat; General Ecology: Terrestrial; Growth Habit: graminoid; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Reproductive Phenology: November; Reproductive Phenology: December; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Rank: 3-ranked; Leaf Type: grass-like; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Base Flower Color: Brown (incl. Maroon); Base Flower Color: Green; Fruit Dehiscence: No; Fruit Type: Achene; Fruit Wet/Dry: Dry; Hypanthium Present: No; Ovary Position: Superior; Overall Flower Symmetry: N/A; Perianth Present: No; Placentation Type: Basal; Sporangium Arrangement: N/A
C value 3
StatusNative; AGCP (OBL), EMP (FACW) (NWPL); TN[SNR] KY[S5] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim

Synonyms

SynonymFull Citation
Cyperus halei Cyperus halei Torr. ex Britt.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Ballard (KY), Bath (KY), Boone (KY), Bracken (KY), Calloway (KY), Campbell (KY), Carlisle (KY), Christian (KY), Clinton (KY), Crittenden (KY), Edmonson (KY), Estill (KY), Franklin (KY), Fulton (KY), Garrard (KY), Greenup (KY), Harlan (KY), Hart (KY), Henderson (KY), Hickman (KY), Hopkins (KY), Jefferson (KY), Jessamine (KY), Kenton (KY), Knox (KY), Laurel (KY), Lawrence (KY), Lewis (KY), Lyon (KY), McCracken (KY), McCreary (KY), McLean (KY), Madison (KY), Mason (KY), Muhlenberg (KY), Ohio (KY), Oldham (KY), Pendleton (KY), Pulaski (KY), Rockcastle (KY), Rowan (KY), Trigg (KY), Trimble (KY), Union (KY), Warren (KY), Whitley (KY), Bedford (TN), Benton (TN), Chester (TN), Coffee (TN), Cumberland (TN), Davidson (TN), Decatur (TN), Grainger (TN), Greene (TN), Hamilton (TN), Hardeman (TN), Hardin (TN), Hawkins (TN), Haywood (TN), Henry (TN), Humphreys (TN), Knox (TN), Lake (TN), Lauderdale (TN), Madison (TN), Marion (TN), Meigs (TN), Montgomery (TN), Obion (TN), Overton (TN), Rutherford (TN), Shelby (TN), Stewart (TN), Tipton (TN), Wayne (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, HTTU, KNK, MDKY, MEM, MTSU, TENN, UCHT

Range of years during which specimens were collected: 1968 - 2011

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100074085 Hickman Kentucky 16 Sep 1993 Randy L. Mears
286
EKY
Cyperus erythrorhizos
31234100074184 Lewis Kentucky 03 Oct 1993 Randy L. Mears
334
EKY
Cyperus erythrorhizos
31234100074325 Pulaski Kentucky 17 Sep 1995 Randy L. Mears
EKY
Cyperus erythrorhizos
31234100074366 Whitley Kentucky 23 Oct 1993 Randy L. Mears
361A
EKY
Cyperus erythrorhizos
31234100074242 McCreary Kentucky 17 Sep 1995 Randy L. Mears
s.n.
EKY
Cyperus erythrorhizos
31234100074127 Kenton Kentucky 10 Sep 1993 Randy L. Mears
360
EKY
Cyperus erythrorhizos
31234100074150 Laurel Kentucky 15 Oct 1988 Ralph L. Thompson
88-2806
EKY
Cyperus erythrorhizos
31234100074051 Garrard Kentucky 20 Oct 1994 Randy L. Mears
459
EKY
Cyperus erythrorhizos
31234100074515 Clinton Kentucky 07 Jul 1999 Mark A. Gorton
99-454
EKY
Cyperus erythrorhizos
31234100074143 Laurel Kentucky 23 Oct 1993 Randy L. Mears
364q
EKY
Cyperus erythrorhizos
31234100073970 Bracken Kentucky 03 Oct 1993 Randy L. Mears
323
EKY
Cyperus erythrorhizos
31234100074069 Greenup Kentucky 03 Oct 1993 Randy L. Mears
343
EKY
Cyperus erythrorhizos
31234100074341 Trimble Kentucky 14 Sep 1993 Randy L. Mears
244
EKY
Cyperus erythrorhizos
31234100073996 Crittenden Kentucky 30 Sep 1980 Richard H. Hannan
5726
EKY
Cyperus erythrorhizos
31234100074259 McCreary Kentucky 17 Sep 1995 Randy L. Mears
s.n.
EKY
Cyperus erythrorhizos
31234100074036 Fulton Kentucky 12 Sep 2010 Landon E. McKinney
11220
EKY
Cyperus erythrorhizos
31234100074119 Jessamine Kentucky 20 Oct 1994 Randy L. Mears
457
EKY
Cyperus erythrorhizos
31234100073962 Bracken Kentucky 03 Oct 1993 Randy L. Mears
323
EKY
Cyperus erythrorhizos
31234100074275 McLean Kentucky 30 Jul 1980 Richard H. Hannan
4815
EKY
Cyperus erythrorhizos
31234100074168 Lawrence Kentucky 02 Oct 1994 Randy L. Mears
454
EKY
Cyperus erythrorhizos
31234100074358 Union Kentucky Richard H. Hannan
5288
EKY
Cyperus erythrorhizos
31234100074135 Knox Kentucky 06 Sep 1993 Randy L. Mears
173
EKY
Cyperus erythrorhizos
31234100074218 Mason Kentucky 03 Oct 1993 Randy L. Mears
329
EKY
Cyperus erythrorhizos
31234100074028 Estill Kentucky 25 Sep 1987 Richard G. Guetig
406
EKY
Cyperus erythrorhizos
31234100074192 Madison Kentucky 07 Oct 1993 Gary W. Libby
OB-831
EKY
Cyperus erythrorhizos
31234100074200 Madison Kentucky 01 Oct 1983 Ronald L. Jones
4174
EKY
Cyperus erythrorhizos
31234100074093 Hopkins Kentucky 12 Aug 1980 R. Hannan
05022
EKY
Cyperus erythrorhizos
31234100074077 Henderson Kentucky 09 Oct 1980 Richard H. Hannan
6022
EKY
Cyperus erythrorhizos
31234100074226 Mason Kentucky 03 Oct 1993 Randy L. Mears
330
EKY
Cyperus erythrorhizos
31234100074002 Edmonson Kentucky 13 Sep 1995 Randy L. Mears
s.n.
EKY
Cyperus erythrorhizos
31234100073988 Crittenden Kentucky 30 Sep 1980 Richard H. Hannan
5725
EKY
Cyperus erythrorhizos
31234100074234 McCracken Kentucky 15 Sep 1993 Randy L. Mears
271
EKY
Cyperus erythrorhizos
31234100074317 Oldham Kentucky 14 Sep 1993 Randy L. Mears
251
EKY
Cyperus erythrorhizos
31234100074291 Ohio Kentucky 25 Sep 1980 Richard H. Hannan
5641
EKY
Cyperus erythrorhizos
31234100076486 Harlan Kentucky 09 Aug 1999 Timothy J. Weckman
5403
EKY
Cyperus erythrorhizos
BEREA004000 Lewis Kentucky 29 Jul 1995 Rudy A. Gelis, R. L. Thompson, J. Richard Abbott, Andy E. Shupe
M1-730
BEREA
Cyperus erythrorhizos
BEREA004004 Madison Kentucky 24 Aug 1997 Ralph L. Thompson
97-925
BEREA
Cyperus erythrorhizos
BEREA004003 Madison Kentucky 07 Oct 1993 Gary W. Libby
OB-831
BEREA
Cyperus erythrorhizos
BEREA003998 Lewis Kentucky 03 Oct 1993 Randy L. Mears
334
BEREA
Cyperus erythrorhizos
BEREA003996 Laurel Kentucky 15 Oct 1988 Ralph L. Thompson, W. Neal Denton
88-2806
BEREA
Cyperus erythrorhizos
BEREA004001 Lewis Kentucky 17 Aug 1995 Rudy A. Gelis, Michelle Lee Gelis
M2-853
BEREA
Cyperus erythrorhizos
BEREA004006 Rockcastle Kentucky 08 Sep 1994 Randy L. Mears
418
BEREA
Cyperus erythrorhizos
31234100074283 Ohio Kentucky 25 Sep 1980 Richard H. Hannan
5626
EKY
Cyperus erythrorhizos
31234100074176 Lewis Kentucky 03 Oct 1993 Randy L. Mears
334
EKY
Cyperus erythrorhizos
31234100074101 Jefferson Kentucky 14 Sep 1993 Randy L. Mears
257A
EKY
Cyperus erythrorhizos
31234100074333 Rockcastle Kentucky 08 Sep 1994 Randy L. Mears
418
EKY
Cyperus erythrorhizos
31234100074044 Fulton Kentucky 29 Aug 1990 Landon E. McKinney
4524
EKY
Cyperus erythrorhizos
31234100074010 Estill Kentucky 23 Sep 1994 Randy L. Mears
434
EKY
Cyperus erythrorhizos
31234100074267 McCreary Kentucky 17 Sep 1995 Randy L. Mears
s.n.
EKY
Cyperus erythrorhizos
31234100074309 Ohio Kentucky 25 Sep 1980 Richard H. Hannan
5626
EKY
Cyperus erythrorhizos
BEREA003994 Greenup Kentucky 03 Oct 1993 Randy L. Mears
343
BEREA
Cyperus erythrorhizos
BEREA003999 Lewis Kentucky 29 Jul 1995 Rudy A. Gelis, R. L. Thompson, Richard Abbott, Andy Shupe
BC-611
BEREA
Cyperus erythrorhizos
BEREA004002 Lewis Kentucky 17 Aug 1995 Rudy A. Gelis, Michelle Lee Gelis
M1-880
BEREA
Cyperus erythrorhizos
BEREA003997 Laurel Kentucky 23 Oct 1993 Randy L. Mears
364
BEREA
Cyperus erythrorhizos
31973000011134 Boone Kentucky
KNK
Cyperus erythrorhizos
31973000011167 Campbell Kentucky
KNK
Cyperus erythrorhizos
BEREA004005 Pulaski Kentucky 17 Sep 1995 Randy L. Mears
s.n.
BEREA
Cyperus erythrorhizos
BEREA003995 Laurel Kentucky 09 Oct 1985 Ralph L. Thompson, Ronald L. Jones
85-810
BEREA
Cyperus erythrorhizos
BEREA003993 Estill Kentucky 23 Sep 1994 Randy L. Mears
434
BEREA
Cyperus erythrorhizos
31973000011171 Lewis Kentucky
KNK
Cyperus erythrorhizos
31973000011133 Campbell Kentucky
KNK
Cyperus erythrorhizos
31973000011170 Campbell Kentucky
KNK
Cyperus erythrorhizos
31973000011135 Campbell Kentucky
KNK
Cyperus erythrorhizos
31973000011139 Lewis Kentucky 17 Aug 1995 Gelis, Rudy
M2-853
KNK
Cyperus erythrorhizos
31973000011137 Lewis Kentucky
KNK
Cyperus erythrorhizos
31973000011130 Pendleton Kentucky
KNK
Cyperus erythrorhizos
TENN-V-0037804 Haywood Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037820 Montgomery Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037801 Lake Tennessee
TENN
Cyperus erythrorhizos
31973000011166 Kenton Kentucky
KNK
Cyperus erythrorhizos
31973000011138 Lewis Kentucky
KNK
Cyperus erythrorhizos
31973000011132 Bath Kentucky
KNK
Cyperus erythrorhizos
31973000011131 Rowan Kentucky
KNK
Cyperus erythrorhizos
31973000011169 Campbell Kentucky
KNK
Cyperus erythrorhizos
31973000011136 Campbell Kentucky
KNK
Cyperus erythrorhizos
31973000011165 Greenup Kentucky
KNK
Cyperus erythrorhizos
31973000011168 Campbell Kentucky
KNK
Cyperus erythrorhizos
MDKY00003440 Rowan Kentucky
MDKY
Cyperus erythrorhizos
TENN-V-0038347 Montgomery Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037817 Marion Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037806 Haywood Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037814 Bedford Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037805 Haywood Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037826 Rutherford Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037824 Obion Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037822 Obion Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037819 Meigs Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037810 Decatur Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037800 Haywood Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0192593 Greene Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037808 Humphreys Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037818 Knox Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037799 Hardin Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037816 Lauderdale Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037811 Cumberland Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037809 Humphreys Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0039062 McCracken Kentucky
TENN
Cyperus erythrorhizos
TENN-V-0037825 Overton Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037831 Wayne Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037802 Hardin Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037812 Chester Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037827 Shelby Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037803 Humphreys Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037830 Tipton Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037829 Shelby Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037807 Haywood Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037797 Grainger Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0192591 Greene Tennessee
TENN
Cyperus erythrorhizos
UCHT003741 Hamilton Tennessee
UCHT
Cyperus erythrorhizos
APSC0039943 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0039953 Hawkins Tennessee
APSC
Cyperus erythrorhizos
APSC0039951 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0041543 Hardin Tennessee 26 Oct 2011 David H. Webb
APSC
Cyperus erythrorhizos
TENN-V-0037823 Obion Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037813 Benton Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037828 Rutherford Tennessee
TENN
Cyperus erythrorhizos
TENN-V-0037798 Hardeman Tennessee
TENN
Cyperus erythrorhizos
UCHT003737 Madison Tennessee
UCHT
Cyperus erythrorhizos
UCHT003740 Lauderdale Tennessee
UCHT
Cyperus erythrorhizos
APSC0039950 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0068324 Edmonson Kentucky
APSC
Cyperus erythrorhizos
APSC0039942 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0070520 Hart Kentucky
APSC
Cyperus erythrorhizos
APSC0070524 Jefferson Kentucky 01 Oct 1983 Max Medley
APSC
Cyperus erythrorhizos
APSC0039939 Benton Tennessee
APSC
Cyperus erythrorhizos
APSC0069430 Campbell Kentucky
APSC
Cyperus erythrorhizos
APSC0069428 Jefferson Kentucky
APSC
Cyperus erythrorhizos
APSC0039955 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0039945 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0039934 Henry Tennessee
APSC
Cyperus erythrorhizos
APSC0039947 Humphreys Tennessee
APSC
Cyperus erythrorhizos
APSC0039927 Trigg Kentucky
APSC
Cyperus erythrorhizos
APSC0039921 Lyon Kentucky
APSC
Cyperus erythrorhizos
APSC0039928 Lyon Kentucky
APSC
Cyperus erythrorhizos
APSC0039917 Trigg Kentucky
APSC
Cyperus erythrorhizos
APSC0039937 Henry Tennessee
APSC
Cyperus erythrorhizos
APSC0072315 Christian Kentucky 08 Jul 1993 Landon McKinney
APSC
Cyperus erythrorhizos
APSC0087888 Trimble Kentucky
APSC
Cyperus erythrorhizos
APSC0039948 Humphreys Tennessee
APSC
Cyperus erythrorhizos
APSC0070518 Hart Kentucky
APSC
Cyperus erythrorhizos
APSC0070522 Carlisle Kentucky
APSC
Cyperus erythrorhizos
APSC0039923 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0070516 Franklin Kentucky
APSC
Cyperus erythrorhizos
APSC0039920 Lyon Kentucky
APSC
Cyperus erythrorhizos
APSC0039918 Trigg Kentucky
APSC
Cyperus erythrorhizos
APSC0101027 Warren Kentucky
APSC
Cyperus erythrorhizos
APSC0039922 Trigg Kentucky
APSC
Cyperus erythrorhizos
APSC0039935 Obion Tennessee
APSC
Cyperus erythrorhizos
APSC0039919 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0069429 Jefferson Kentucky
APSC
Cyperus erythrorhizos
APSC0102350 Edmonson Kentucky
APSC
Cyperus erythrorhizos
APSC0107855 Calloway Kentucky
APSC
Cyperus erythrorhizos
APSC0072258 McCracken Kentucky
APSC
Cyperus erythrorhizos
APSC0039926 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0073169 Jefferson Kentucky 15 Sep 1985 Max Medley
APSC
Cyperus erythrorhizos
APSC0039941 Humphreys Tennessee
APSC
Cyperus erythrorhizos
APSC0107021 Coffee Tennessee
APSC
Cyperus erythrorhizos
APSC0039952 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0039954 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0087922 Trimble Kentucky
APSC
Cyperus erythrorhizos
APSC0039938 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0039925 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0039946 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0039931 Lyon Kentucky
APSC
Cyperus erythrorhizos
APSC0039956 Montgomery Tennessee
APSC
Cyperus erythrorhizos
APSC0039924 Stewart Tennessee
APSC
Cyperus erythrorhizos
APSC0039944 Stewart Tennessee
APSC
Cyperus erythrorhizos
HTTU026552 Lake Tennessee
HTTU
Cyperus erythrorhizos
HTTU026555 Lake Tennessee
HTTU
Cyperus erythrorhizos
HTTU026553 Lake Tennessee
HTTU
Cyperus erythrorhizos
HTTU026551 Lake Tennessee
HTTU
Cyperus erythrorhizos
UCHT038800 Shelby Tennessee
UCHT
Cyperus erythrorhizos
mem010885 Tipton Tennessee 17 Sep 1969 Delzie Demaree
61103
MEM
Cyperus erythrorhizos
mem008697 Ballard Kentucky 08 Sep 1971 Raymond Athey
1525
MEM
Cyperus erythrorhizos
MEM007834 Shelby Tennessee 26 Aug 1971 John E. Thompson Jr.
435
MEM
Cyperus erythrorhizos
APSC0070523 Carlisle Kentucky
APSC
Cyperus erythrorhizos
APSC0039932 Trigg Kentucky
APSC
Cyperus erythrorhizos
APSC0050048 Davidson Tennessee
APSC
Cyperus erythrorhizos
APSC0102279 Muhlenberg Kentucky
APSC
Cyperus erythrorhizos
APSC0104490 Edmonson Kentucky
APSC
Cyperus erythrorhizos
HTTU007371 Tennessee
HTTU
Cyperus erythrorhizos
HTTU026554 Lake Tennessee
HTTU
Cyperus erythrorhizos
MTSU003335 Davidson Tennessee 19 Jun 2001 Angela Cathey
MTSU
Cyperus erythrorhizos
TENN-V-0244130 Wayne Tennessee
TENN
Cyperus erythrorhizos
UCHT038801 Wayne Tennessee
UCHT
Cyperus erythrorhizos
BEREA025644 Lewis Kentucky
BEREA
Cyperus erythrorhizos
mem011771 McCracken Kentucky 05 Nov 1975 Raymond Athey
3195
MEM
Cyperus erythrorhizos
mem010874 Tipton Tennessee 17 Aug 1968 Sarah J. Warrington
335
MEM
Cyperus erythrorhizos
First Page Previous Page Next Page Last Page
Records per Page:

Plant Photos

Cyperus erythrorhizos - Theo Witsell
Cyperus erythrorhizos - Theo Witsell
Cyperus erythrorhizos - Theo Witsell
Cyperus erythrorhizos - Theo Witsell
Cyperus erythrorhizos - Theo Witsell
Cyperus erythrorhizos - Theo Witsell