Cyperus erythrorhizos

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:CYPERACEAE
Species:Cyperus erythrorhizos Muhl.
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:**

** Not applicable or data not available.

Classification

FamilyCYPERACEAE - Sedge family
Genus Cyperus
Species Cyperus erythrorhizos Muhl. - Red Root Flatsedge

Citation

Citation Cyperus erythrorhizos Muhlenberg, Descr. Gram. [Muhlenberg] 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, Houston, Lee, Madison, Marengo, Marshall, Mobile, Monroe, Montgomery, Pike, Randolph, Shelby, Sumter, Talladega, Tuscaloosa, Washington, Wilcox

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1944 - 1992

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
JSU111956 Talladega 6 Sep 1993 Ballard, J. Mark
3295		 JSU
Cyperus erythrorhizos Muhlenberg
JSU111945 DeKalb 14 Oct 1975 Whetstone, R. David
7469		 JSU
Cyperus erythrorhizos Muhlenberg
UNA00053590 Greene 05 Aug 1969 Thomas, Joab L.
2353		 UNA
Cyperus erythrorhizos Muhl.
AUA000021044 Conecuh 28 Aug 1987 Diamond, Alvin R.
3554		 AUA
Cyperus Erythrorhizos Muhl.
TROY000025270 Madison 08 Aug 1997 Spaulding, Daniel D.
9876		 TROY
Cyperus erythrorhizos Muhlenberg
ALNHS00004303 Montgomery 09 Sep 2016 Barger, T. Wayne
SP#2496		 ALNHS
Cyperus erythrorhizos Muhl.
JSU111941 Calhoun 21 Sep 1986 Lawler, Carol L.
1249		 JSU
Cyperus erythrorhizos Muhlenberg
USAM000004528 Mobile 25 Oct 1980 LeLong, Michel G.
11728		 USAM
Cyperus erythrorhizos Muhlenberg
TROY000032279 Shelby 09 Nov 2007 Keener, Brian R.
4024		 TROY
Cyperus erythrorhizos Muhlenberg
UWAL0015034 Bullock 02 Nov 2012 Dykes, Bailee
1434		 UWAL
Cyperus erythrorhizos Muhlenberg
AUA000021042 Choctaw 26 Aug 1994 Crouch, Virginia E.
1176		 AUA
Cyperus Erythrorhizos Muhl.
SAMF0001085 Sumter 21 Oct 2010 Keener, Brian R.
6266		 SAMF
Cyperus erythrorhizos Muhlenberg
TROY000010303 Crenshaw 27 Oct 2007 Norman, James
9		 TROY
Cyperus erythrorhizos Muhlenberg
UNA00001848 Tuscaloosa 04 Oct 1977 Bodkin, C.
115		 UNA
Cyperus erythrorhizos Muhl.
JSU111948 Etowah 24 Sep 1995 Hodge-Spaulding, Lesley M.
4381		 JSU
Cyperus erythrorhizos Muhlenberg
TROY000034284 Montgomery 25 Sep 2011 Diamond, Alvin R.
22587		 TROY
Cyperus erythrorhizos Muhlenberg
UWAL0010094 Montgomery 25 Sep 2011 Diamond, Alvin R.
22587		 UWAL
Cyperus erythrorhizos Muhlenberg
AUA000037495 Randolph 28 Sep 2016 Barger, T. Wayne
SP2864		 AUA
Cyperus Erythrorhizos Muhl.
UWAL0003249 Shelby 23 Oct 2008 Davenport, L.J.
3907		 UWAL
Cyperus erythrorhizos Muhl.
JSU111951 Marshall 28 Oct 1995 Spaulding, Daniel D.
7394		 JSU
Cyperus erythrorhizos Muhlenberg
UNA00001873 Tuscaloosa 09 Sep 1951 Williams, B.C.
s.n.		 UNA
Cyperus erythrorhizos Muhl.
AUA000021039 Choctaw 25 Aug 1994 Crouch, Virginia E.
1161		 AUA
Cyperus Erythrorhizos Muhl.
TROY000025435 Pike 18 Aug 2000 Diamond, Alvin R.
12011		 TROY
Cyperus erythrorhizos Muhlenberg
UWAL0003247 Cherokee 02 Nov 2007 Spaulding, Daniel D.
12805		 UWAL
Cyperus erythrorhizos Muhl.
AUA000043806 Lee 28 Sep 2018 Schotz, Alfred
CSP-554		 AUA
Cyperus Erythrorhizos Muhl.
UWAL0003246 Butler 16 Aug 2007 Diamond, Alvin R.
17915		 UWAL
Cyperus erythrorhizos Muhl.
UNA00060500 Mobile 25 Dec 2002 Zebryk, Tad M.
8176		 UNA
Cyperus erythrorhizos Muhl.
USAM000004535 Mobile 07 Oct 1993 Miley, Glen A.
s.n.		 USAM
Cyperus erythrorhizos Muhlenberg
JSU111958 Talladega 30 Jul 1986 Lawler, Carol L.
818		 JSU
Cyperus erythrorhizos Muhlenberg
USAM000004527 Washington 25 Oct 1980 LeLong, Michel G.
11761		 USAM
Cyperus erythrorhizos Muhlenberg
UNA00001865 Tuscaloosa 01 Oct 1992 Haynes, Chris G.
17		 UNA
Cyperus erythrorhizos Muhl.
UWAL0043001 Baldwin 04 Sep 2009 Larsen, Harry S.
1681		 UWAL
Cyperus erythrorhizos Muhl.
USAM000004531 Greene 27 Oct 1978 LeLong, Michel G.
10648		 USAM
Cyperus erythrorhizos Muhlenberg
UWAL0037422 Bullock 26 Aug 2016 Soehren, Eric C.
404.1		 UWAL
Cyperus erythrorhizos Muhl.
UNA00069127 Cherokee 02 Nov 2007 Spaulding, Daniel D.
12805		 UNA
Cyperus erythrorhizos Muhl.
JSU111954 Shelby 11 Aug 1997 Morrow, D. Keener
93		 JSU
Cyperus erythrorhizos Muhlenberg
TROY000037161 Fayette 16 Aug 2009 Younghance, Steven L.
265		 TROY
Cyperus erythrorhizos Muhlenberg
JSU111955 Shelby 10 Sep 1982 Whetstone, R. David
12297		 JSU
Cyperus erythrorhizos Muhlenberg
TROY000029131 Cherokee 02 Nov 2007 Spaulding, Daniel D.
12805		 TROY
Cyperus erythrorhizos Muhlenberg
TROY000025430 Butler 16 Aug 2007 Diamond, Alvin R.
17915		 TROY
Cyperus erythrorhizos Muhlenberg
USAM000004529 Greene 19 Oct 1979 LeLong, Michel G.
10968		 USAM
Cyperus erythrorhizos Muhlenberg
TROY000025268 Bibb 15 Oct 1978 Kral, Robert
63060		 TROY
Cyperus erythrorhizos Muhlenberg
UWAL0008507 Sumter 21 Oct 2010 Keener, Brian R.
6266		 UWAL
Cyperus erythrorhizos Muhl.
AUA000021045 Crenshaw 1 Oct 1995 Diamond, Alvin R.
10023		 AUA
Cyperus Erythrorhizos Muhl.
UNA00001878 Tuscaloosa 09 Sep 1951 Williams, B.C.
s.n.		 UNA
Cyperus erythrorhizos Muhl.
AUA000021038 Choctaw 25 Aug 1994 Crouch, Virginia E.
1161		 AUA
Cyperus Erythrorhizos Muhl.
TROY000025432 Dale 14 Sep 2000 Pennington, Tiffany
971		 TROY
Cyperus erythrorhizos Muhlenberg
UWAL0013311 Fayette 16 Aug 2009 Younghance, Steve L.
265		 UWAL
Cyperus erythrorhizos Muhlenberg
UWAL0049137 Bullock 30 Sep 2016 Horne, Howard E.
3592		 UWAL
Cyperus erythrorhizos Muhlenberg
UNA00001848 Tuscaloosa 4 Oct 1977 Bodkin, C.
115		 UNA
Cyperus erythrorhizos Muhl.
UNA00060915 Mobile 25 Dec 2002 Zebryk, Tad M.
8191		 UNA
Cyperus erythrorhizos Muhl.
AUA000021036 Barbour 25 Aug 1982 Godwin, James C.
015		 AUA
Cyperus Erythrorhizos Muhl.
JSU111952 Marshall 9 Sep 1991 Spaulding, Daniel D.
816		 JSU
Cyperus erythrorhizos Muhlenberg
USAM000004534 Mobile 25 Oct 1980 LeLong, Michel G.
11789		 USAM
Cyperus erythrorhizos Muhlenberg
JSU111959 Talladega 28 Jul 1992 Ballard, J. Mark
823		 JSU
Cyperus erythrorhizos Muhlenberg
TROY000035014 Sumter 21 Oct 2010 Keener, Brian R.
6266		 TROY
Cyperus erythrorhizos Muhlenberg
USAM000004530 Greene 27 Oct 1978 LeLong, Michel G.
10667		 USAM
Cyperus erythrorhizos Muhlenberg
TROY000025434 Monroe 17 Sep 2007 Diamond, Alvin R.
18175		 TROY
Cyperus erythrorhizos Muhlenberg
JSU111944 Clarke 13 Sep 1997 Whetstone, R. David
18877		 JSU
Cyperus erythrorhizos Muhlenberg
UNA00001843 Mobile _ Jul 1878 Mohr, Charles
s.n.		 UNA
Cyperus erythrorhizos Muhl.
JSU111953 Monroe 12 Sep 1997 Whetstone, R. David
18492		 JSU
Cyperus erythrorhizos Muhlenberg
TROY000025269 Madison 08 Aug 1997 Spaulding, Daniel D.
9876		 TROY
Cyperus erythrorhizos Muhlenberg
UNA00001863 Wilcox 03 Nov 1979 Nieland, David L.
63		 UNA
Cyperus erythrorhizos Muhl.
USAM000004532 Greene 19 Oct 1979 LeLong, Michel G.
10985		 USAM
Cyperus erythrorhizos Muhlenberg
USAM000004533 Baldwin 23 Aug 1980 LeLong, Michel G.
11330		 USAM
Cyperus erythrorhizos Muhlenberg
TROY000037583 Bullock 02 Nov 2012 Dykes, Bailee
1434		 TROY
Cyperus erythrorhizos Muhlenberg
AUA000021043 Conecuh 13 Sep 1985 Diamond, Alvin R.
 AUA
Cyperus Erythrorhizos Muhl.
AUA000021041 Choctaw 26 Aug 1994 Crouch, Virginia E.
1176		 AUA
Cyperus Erythrorhizos Muhl.
UNA00001858 Dallas 23 Oct 1977 Haynes, Robert R.
6399		 UNA
Cyperus erythrorhizos Muhl.
UNA00001863 Wilcox 3 Nov 1979 Nieland, David L.
63		 UNA
Cyperus erythrorhizos Muhl.
UWAL0036077 Blount 27 Oct 2014 Anderson, Kelly
749		 UWAL
Cyperus erythrorhizos Muhl.
JSU111947 Etowah 27 Aug 1994 Hodge, Lesley M.
3247		 JSU
Cyperus erythrorhizos Muhlenberg
TROY000025431 Crenshaw 12 Sep 1996 Diamond, Alvin R.
10517		 TROY
Cyperus erythrorhizos Muhlenberg
ALNHS00004335 Houston 01 Nov 2016 Barger, T. Wayne
SP#2699		 ALNHS
Cyperus erythrorhizos Muhl.
AUA000021037 Barbour 25 Aug 1982 Godwin, James C.
022		 AUA
Cyperus Erythrorhizos Muhl.
JSU111943 Clarke 31 Oct 1997 Whetstone, R. David
18938		 JSU
Cyperus erythrorhizos Muhlenberg
JSU111950 Madison 15 Oct 1975 Whetstone, R. David
6974		 JSU
Cyperus erythrorhizos Muhlenberg
JSU111942 Calhoun 10 Sep 1995 Hruska, Susan E.
912		 JSU
Cyperus erythrorhizos Muhlenberg
UNA00065849 Bibb 15 Oct 1978 Kral, Robert
63060		 UNA
Cyperus erythrorhizos Muhl.
AUA000021040 Choctaw 22 Jun 1994 Crouch, Virginia E.
1063		 AUA
Cyperus Erythrorhizos Muhl.
TROY000025433 Monroe 17 Sep 2007 Diamond, Alvin R.
18176		 TROY
Cyperus erythrorhizos Muhlenberg
JSU111949 Etowah 18 Oct 1975 Whetstone, R. David
6871		 JSU
Cyperus erythrorhizos Muhlenberg
JSU111946 DeKalb 14 Oct 1975 Whetstone, R. David
7469		 JSU
Cyperus erythrorhizos Muhlenberg
AUA000021035 Barbour 3 Sep 2000 Diamond, Alvin R.
12064		 AUA
Cyperus Erythrorhizos Muhl.
UNA00056444 Marengo 13 Oct 1908 Harper, Roland M.
127		 UNA
Cyperus erythrorhizos Muhl.
JSU111957 Talladega 30 Jul 1986 Lawler, Carol L.
818		 JSU
Cyperus erythrorhizos Muhlenberg
USAM000004526 Washington 25 Oct 1980 LeLong, Michel G.
11761		 USAM
Cyperus erythrorhizos Muhlenberg
UNA00001853 Tuscaloosa 17 Sep 1944 Harper, Roland M.
3983		 UNA
Cyperus erythrorhizos Muhl.
UWAL0003248 Shelby 09 Nov 2007 Keener, Brian R.
4024		 UWAL
Cyperus erythrorhizos Muhl.
SAMF0007135 Choctaw 25 Aug 1994 Crouch, Virginia
1161		 SAMF
Cyperus erythrorhizos Muhlenberg
AUA000025260 Shelby 23 Oct 2008 Davenport, L.J.
3907		 AUA
Cyperus Erythrorhizos Muhl.
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