Cyperus erythrorhizos

Family:CYPERACEAE
Species:Cyperus erythrorhizos Muhlenberg
Common Name:Red Root Flatsedge
Habitat:Shores of lakes and rivers.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:**
Taxonomic Notes:**
Status:Native, OBL (NWI)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyCYPERACEAE - Sedge family
Genus Cyperus
Species Cyperus erythrorhizos Muhlenberg - Red Root Flatsedge

Citation

Citation CYPERUS ERYTHRORHIZOS Muhlenberg, Descr. Gram. 20. 1817.
Basionym: **
Type: "Pennsylvaniae,.... etiam in Carolina Septen. et Georgia", without data, Muhlenberg Herb. 27.2 (lectotype: PH). Lectotypified by G. C. Tucker, Syst. Bot. Monogr. 43: 106. 1994.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Chlorocyperus erythrorhizos Chlorocyperus erythrorhizos (Muhlenberg) Palla, Allg. Bot. Z. Syst. 9: 69. 1903.Cyperus erythrorhizos Muhlenberg 1817. 
Cyperus chrysokerkos Cyperus chrysokerkos Steudel, Syn. Pl. Glumac. 2: 316. 1855.  
Cyperus cupreus Cyperus cupreus J. Presl & C. Presl, in C. Presl, Reliq. Haenk. 1: 172. 1830. CALIFORNIA: Monterey Co.: Monterey, s.d., Haenke s.n. (holotype: PR?).
Cyperus erythrorhizos var. cupreus Cyperus erythrorhizos Muhlenberg, var. cupreus (J. Presl & C. Presl) Kükenthal, in Engler, Pflanzenr. 4(Heft 101): 59. 1935.Cyperus cupreus J. Presl & C. Presl 1830. 
Cyperus erythrorhizos var. halei Cyperus erythrorhizos Muhlenberg, var. halei (Torrey ex Britton) Kükenthal, in Engler, Pflanzenr. 4(Heft 101): 59. 1935.Cyperus halei Torrey ex Britton 1886. 
Cyperus erythrorhizos var. infirmus Cyperus erythrorhizos Muhlenberg, var. infirmus Kükenthal, in Engler, Pflanzenr. 4(Heft 101): 59. 1935.Cyperus infirmus Boeckeler 1859, non Schrader ex Nees von Esenbeck 1842. 
Cyperus infirmus Cyperus infirmus Boeckeler, Flora 42: 438 bis. 1859, non Schrader ex Nees von Esenbeck 1842.  
Cyperus occidentalis Cyperus occidentalis Torrey, Ann. Lyceum Nat. Hist. New York 3: 259. 1836. OREGON/WASHINGTON: Mouth of the Columbia River, s.d., Douglas (?) s.n. (holotype: NY).
Cyperus spiculatus Cyperus spiculatus Wood, Trans. Kansas Acad. Sci. 5: 56. 1877.  
Cyperus washingtonensis Cyperus washingtonensis Gandoger,Bull. Soc. Bot. France 66: 296. 1919. WASHINGTON: Klickitat Co.: Bingen, s.d., Suksdorf 587 (holotype: LY?).
Cyperus halei Cyperus halei Torrey ex Britton, Bull. Torrey Bot. Club 13: 213. 1886. LOUISIANA: Banks of the Red River, Oct-Nov, Hale 35 (holotype: NY).

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; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Baldwin, Barbour, Bibb, Blount, Bullock, Butler, Calhoun, Cherokee, Choctaw, Clarke, Conecuh, Crenshaw, Dale, Dallas, DeKalb, Etowah, Fayette, Greene, Madison, Marengo, Marshall, Mobile, Monroe, Montgomery, Pike, Shelby, Sumter, Talladega, Tuscaloosa, Washington

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AUA, JSU, SAMF, TROY, UNA, USAM, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
UWAL0003249 Shelby 23 Oct 2008 Davenport, L.J.
3907
UWAL
Cyperus erythrorhizos Muhl.
UNA00001878 Tuscaloosa 9 Sep 1951 B. C. Williams
s.n.
UNA
Cyperus erythrorhizos Muhl.
UNA00001853 Tuscaloosa 17 Sep 1944 Roland M. Harper
3983
UNA
Cyperus erythrorhizos Muhl.
JSU111955 Shelby 10 Sep 1982 R. D. Whetstone
12297
JSU
Cyperus erythrorhizos Muhlenberg
JSU111953 Monroe 12 Sep 1997 R. D. Whetstone
18492
JSU
Cyperus erythrorhizos Muhlenberg
UWAL0003247 Cherokee 02 Nov 2007 Spaulding, Daniel D.
12805
UWAL
Cyperus erythrorhizos Muhl.
UWAL0010094 Montgomery 25 Sep 2011 Diamond, Alvin R.
22587
UWAL
Cyperus erythrorhizos Muhlenberg
UWAL0036077 Blount 27 Oct 2014 Anderson, Kelly
0749
UWAL
Cyperus erythrorhizos Muhl.
UWAL0003248 Shelby 09 Nov 2007 Keener, Brian R.
4024
UWAL
Cyperus erythrorhizos Muhl.
AUA000025260 Shelby 23 OCT 2008 DAVENPORT, LAWRENCE J.
3907
AUA
CYPERUS ERYTHRORHIZOS MUHL.
TROY000025430 Butler 16 Aug 2007 Alvin R. Diamond
17915
TROY
Cyperus erythrorhizos Muhlenberg
USAM000004534 Mobile 25 Oct 1980 Michel G. Lelong
11789
USAM
Cyperus erythrorhizos Muhlenberg
UNA00060915 Mobile 25 Dec 2002 Tad M. Zebryk
8191
UNA
Cyperus erythrorhizos Muhl.
UNA00069127 Cherokee 2 Nov 2007 D. D. Spaulding
12805
UNA
Cyperus erythrorhizos Muhl.
JSU111946 DeKalb 14 Oct 1975 R. D. Whetstone
7469
JSU
Cyperus erythrorhizos Muhlenberg
JSU111954 Shelby 11 Aug 1997 D. Keener Morrow
93
JSU
Cyperus erythrorhizos Muhlenberg
JSU111943 Clarke 31 Oct 1997 R. D. Whetstone
18938
JSU
Cyperus erythrorhizos Muhlenberg
AUA000021040 Choctaw 22 JUN 1994 CROUCH, VIRGINIA E.
1063
AUA
CYPERUS ERYTHRORHIZOS MUHL.
TROY000025435 Pike 18 Aug 2000 Alvin R. Diamond
12011
TROY
Cyperus erythrorhizos Muhlenberg
TROY000032279 Shelby 09 Nov 2007 Brian R. Keener
4024
TROY
Cyperus erythrorhizos Muhlenberg
UNA00001873 Tuscaloosa 9 Sep 1951 B. C. Williams
s.n.
UNA
Cyperus erythrorhizos Muhl.
UNA00056444 Marengo 13 Oct 1908 Roland M. Harper
127
UNA
Cyperus erythrorhizos Muhl.
USAM000004532 Greene 19 Oct 1979 Michel G. Lelong
10985
USAM
Cyperus erythrorhizos Muhlenberg
JSU111947 Etowah 27 Aug 1994 L. M. Hodge
3247
JSU
Cyperus erythrorhizos Muhlenberg
TROY000029131 Cherokee 02 Nov 2007 Daniel D. Spaulding
12805
TROY
Cyperus erythrorhizos Muhlenberg
UWAL0008507 Sumter 21 Oct 2010 Keener, Brian R.
6266
UWAL
Cyperus erythrorhizos Muhl.
UWAL0013311 Fayette 16 Aug 2009 Younghance, Steve
0265
UWAL
Cyperus erythrorhizos Muhlenberg
TROY000035014 Sumter 21 Oct 2010 Brian R. Keener
6266
TROY
Cyperus erythrorhizos Muhlenberg
AUA000021042 Choctaw 26 AUG 1994 CROUCH, VIRGINIA E.
1176
AUA
CYPERUS ERYTHRORHIZOS MUHL.
JSU111958 Talladega 30 Jul 1986 C. L. Lawler
818
JSU
Cyperus erythrorhizos Muhlenberg
USAM000004527 Washington 25 Oct 1980 Michel G. Lelong
11761
USAM
Cyperus erythrorhizos Muhlenberg
TROY000025431 Crenshaw 12 Sep 1996 Alvin R. Diamond
10517
TROY
Cyperus erythrorhizos Muhlenberg
UNA00065849 Bibb 15 Oct 1978 R. Kral
63060
UNA
Cyperus erythrorhizos Muhl.
JSU111949 Etowah 18 Oct 1975 R. D. Whetstone
6871
JSU
Cyperus erythrorhizos Muhlenberg
TROY000025432 Dale 14 Sep 2000 Tiffany Pennington
971
TROY
Cyperus erythrorhizos Muhlenberg
TROY000037161 Fayette 16 Aug 2009 Steve Younghance
265
TROY
Cyperus erythrorhizos Muhlenberg
TROY000025269 Madison 08 Aug 1997 Daniel D. Spaulding
9876
TROY
Cyperus erythrorhizos Muhlenberg
AUA000021038 Choctaw 25 AUG 1994 CROUCH, VIRGINIA E.
1161
AUA
CYPERUS ERYTHRORHIZOS MUHL.
JSU111941 Calhoun 21 Sep 1986 C. L. Lawler
1249
JSU
Cyperus erythrorhizos Muhlenberg
USAM000004528 Mobile 25 Oct 1980 Michel G. Lelong
11728
USAM
Cyperus erythrorhizos Muhlenberg
TROY000010303 Crenshaw 27 Oct 2007 James Norman
9
TROY
Cyperus erythrorhizos Muhlenberg
UNA00053590 Greene 5 Aug 1969 Joab L. Thomas
2353
UNA
Cyperus erythrorhizos Muhl.
JSU111950 Madison 15 Oct 1975 R. D. Whetstone
6974
JSU
Cyperus erythrorhizos Muhlenberg
JSU111959 Talladega 28 Jul 1992 J. M. Ballard
823
JSU
Cyperus erythrorhizos Muhlenberg
TROY000025268 Bibb 15 Oct 1978 Robert Kral
63060
TROY
Cyperus erythrorhizos Muhlenberg
JSU111956 Talladega 6 Sep 1993 J. M. Ballard
3295
JSU
Cyperus erythrorhizos Muhlenberg
AUA000021041 Choctaw 26 AUG 1994 CROUCH, VIRGINIA E.
1176
AUA
CYPERUS ERYTHRORHIZOS MUHL.
USAM000004533 Baldwin 23 Aug 1980 Michel G. Lelong
11330
USAM
Cyperus erythrorhizos Muhlenberg
USAM000004529 Greene 19 Oct 1979 Michel G. Lelong
10968
USAM
Cyperus erythrorhizos Muhlenberg
UNA00001858 Dallas 23 Oct 1977 Robert R. Haynes
6399
UNA
Cyperus erythrorhizos Muhl.
JSU111948 Etowah 24 Sep 1995 L. Hodge-Spaulding
4381
JSU
Cyperus erythrorhizos Muhlenberg
TROY000037583 Bullock 02 Nov 2012 Bailee Dykes
1434
TROY
Cyperus erythrorhizos Muhlenberg
UWAL0003246 Butler 16 Aug 2007 Diamond, A.R.
17915
UWAL
Cyperus erythrorhizos Muhl.
USAM000004535 Mobile 07 Oct 1993 Glen A. Miley
s.n.
USAM
Cyperus erythrorhizos Muhlenberg
TROY000025270 Madison 08 Aug 1997 Daniel D. Spaulding
9876
TROY
Cyperus erythrorhizos Muhlenberg
AUA000021043 Conecuh 13 SEP 1985 DIAMOND, JR., ALVIN R.
AUA
CYPERUS ERYTHRORHIZOS MUHL.
JSU111957 Talladega 30 Jul 1986 C. L. Lawler
818
JSU
Cyperus erythrorhizos Muhlenberg
USAM000004526 Washington 25 Oct 1980 Michel G. Lelong
11761
USAM
Cyperus erythrorhizos Muhlenberg
UNA00060500 Mobile 25 Dec 2002 Tad M. Zebryk
8176
UNA
Cyperus erythrorhizos Muhl.
AUA000021035 Barbour 3 SEP 2000 DIAMOND, JR., ALVIN R.
12064
AUA
CYPERUS ERYTHRORHIZOS MUHL.
UNA00001865 Tuscaloosa 1 Oct 1992 Chris G. Haynes
17
UNA
Cyperus erythrorhizos Muhl.
TROY000034284 Montgomery 25 Sep 2011 Alvin R. Diamond
22587
TROY
Cyperus erythrorhizos Muhlenberg
SAMF0001085 Sumter 21 Oct 2010 Keener, Brian R.
6266
SAMF
Cyperus erythrorhizos Muhlenberg
JSU111945 DeKalb 14 Oct 1975 R. D. Whetstone
7469
JSU
Cyperus erythrorhizos Muhlenberg
AUA000021045 Crenshaw 1 OCT 1995 DIAMOND, JR., ALVIN R.
10023
AUA
CYPERUS ERYTHRORHIZOS MUHL.
JSU111952 Marshall 9 Sep 1991 D. D. Spaulding
816
JSU
Cyperus erythrorhizos Muhlenberg
AUA000021044 Conecuh 28 AUG 1987 DIAMOND, JR., ALVIN R.
3554
AUA
CYPERUS ERYTHRORHIZOS MUHL.
AUA000021039 Choctaw 25 AUG 1994 CROUCH, VIRGINIA E.
1161
AUA
CYPERUS ERYTHRORHIZOS MUHL.
TROY000025433 Monroe 17 Sep 2007 Alvin R. Diamond
18176
TROY
Cyperus erythrorhizos Muhlenberg
USAM000004530 Greene 27 Oct 1978 Michel G. Lelong
10667
USAM
Cyperus erythrorhizos Muhlenberg
AUA000021036 Barbour 25 AUG 1982 GODWIN, JAMES C.
015
AUA
CYPERUS ERYTHRORHIZOS MUHL.
UNA00001843 _ Jul 1878 Charles Mohr
s.n.
UNA
Cyperus erythrorhizos Muhl.
JSU111942 Calhoun 10 Sep 1995 S. E. Hruska
912
JSU
Cyperus erythrorhizos Muhlenberg
UWAL0037422 Bullock 26 Aug 2016 Soehren, Eric C.
404.1
UWAL
Cyperus erythrorhizos Muhl.
JSU111944 Clarke 13 Sep 1997 R. D. Whetstone
18877
JSU
Cyperus erythrorhizos Muhlenberg
AUA000021037 Barbour 25 AUG 1982 GODWIN, JAMES C.
022
AUA
CYPERUS ERYTHRORHIZOS MUHL.
JSU111951 Marshall 28 Oct 1995 D. D. Spaulding
7394
JSU
Cyperus erythrorhizos Muhlenberg
UWAL0015034 Bullock 02 Nov 2012 Dykes, Bailee
1434
UWAL
Cyperus erythrorhizos Muhlenberg
UWAL0043001 Baldwin 04 Sep 2009 Larsen, H.S.
1681
UWAL
Cyperus erythrorhizos Muhl.
TROY000025434 Monroe 17 Sep 2007 Alvin R. Diamond
18175
TROY
Cyperus erythrorhizos Muhlenberg
USAM000004531 Greene 27 Oct 1978 Michel G. Lelong
10648
USAM
Cyperus erythrorhizos Muhlenberg
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