Cyperus bipartitus

ClassificationMonocots
FamilyCyperaceae
Family (Traditional)Cyperaceae
GenusCyperus
Species:Cyperus bipartitus Torr.
Common NameSlender Flatsedge
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: GRSM; Duration: Annual; General Ecology: Terrestrial; Growth Habit: graminoid; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; 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 4
StatusNative; AGCP (FACW), EMP (FACW) (NWPL); TN[SNR] KY[S4?] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Currently no photos are available for this plant.

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 niger var. rivularis Cyperus niger var. rivularis (Kunth) V.E.Grant
Cyperus rivularis Cyperus rivularis Kunth
Pycreus rivularis Pycreus rivularis Palla

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: Adair (KY), Boone (KY), Boyd (KY), Boyle (KY), Breathitt (KY), Calloway (KY), Campbell (KY), Clark (KY), Clay (KY), Cumberland (KY), Edmonson (KY), Estill (KY), Fayette (KY), Floyd (KY), Franklin (KY), Garrard (KY), Grayson (KY), Greenup (KY), Hardin (KY), Harlan (KY), Jefferson (KY), Johnson (KY), Kenton (KY), Knox (KY), Laurel (KY), Lawrence (KY), Leslie (KY), Lewis (KY), Livingston (KY), Madison (KY), Menifee (KY), Monroe (KY), Owsley (KY), Perry (KY), Pike (KY), Powell (KY), Pulaski (KY), Rockcastle (KY), Rowan (KY), Russell (KY), Trigg (KY), Whitley (KY), Woodford (KY), Anderson (TN), Blount (TN), Campbell (TN), Carter (TN), Cheatham (TN), Coffee (TN), Cumberland (TN), Davidson (TN), Fentress (TN), Greene (TN), Grundy (TN), Jefferson (TN), Johnson (TN), Knox (TN), Marion (TN), Maury (TN), Montgomery (TN), Overton (TN), Polk (TN), Putnam (TN), Rutherford (TN), Stewart (TN), Tipton (TN), Unicoi (TN), Warren (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, ETSU, KNK, MDKY, TENN

Range of years during which specimens were collected: 1947 - 2018

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100073079 Owsley Kentucky 22 Sep 1994 Randy L. Mears
423
EKY
Cyperus bipartitus
31234100072766 Adair Kentucky 19 Sep 1993 Randy L. Mears
316
EKY
Cyperus bipartitus
31234100073152 Whitley Kentucky 24 Sep 1994 Randy L. Mears
436
EKY
Cyperus bipartitus
31234100072832 Edmonson Kentucky 13 Sep 1995 Randy L. Mears
EKY
Cyperus bipartitus
31234100073186 Woodford Kentucky 18 Sep 1995 Randy L. Mears
EKY
Cyperus bipartitus
31234100072865 Floyd Kentucky 11 Sep 1993 Randy L. Mears
213
EKY
Cyperus bipartitus
31234100072923 Hardin Kentucky 16 Oct 1983 Ronald L. Jones
4224
EKY
Cyperus bipartitus
31234100072758 Boyd Kentucky 04 Oct 1993 Randy L. Mears
351
EKY
Cyperus bipartitus
31234100073103 Powell Kentucky 11 Sep 1993 Randy L. Mears
198
EKY
Cyperus bipartitus
31234100072782 Breathitt Kentucky 22 Sep 1993 Randy L. Mears
431
EKY
Cyperus bipartitus
31234100073160 Whitley Kentucky 24 Sep 1994 Randy L. Mears
436
EKY
Cyperus bipartitus
31234100072774 Boyd Kentucky 04 Oct 1993 Randy L. Mears
351
EKY
Cyperus bipartitus
31234100073087 Perry Kentucky 15 Aug 1993 Randy L. Mears
135
EKY
Cyperus bipartitus
31234100073129 Pulaski Kentucky 09 Sep 1993 Randy L. Mears
190
EKY
Cyperus bipartitus
31234100072915 Harlan Kentucky 06 Sep 1993 Randy L. Mears
183
EKY
Cyperus bipartitus
31234100073020 Leslie Kentucky 25 Sep 1994 Randy L. Mears
438
EKY
Cyperus bipartitus
31234100073145 Russell Kentucky 12 Sep 1995 Randy L. Mears
EKY
Cyperus bipartitus
31234100072816 Clay Kentucky 11 Sep 1993 Randy L. Mears
226
EKY
Cyperus bipartitus
31234100073111 Powell Kentucky 30 Sep 1980 Donald K. Walker
650
EKY
Cyperus bipartitus
31234100073012 Lawrence Kentucky 02 Oct 1993 Randy L. Mears
457
EKY
Cyperus bipartitus
31234100072857 Fayette Kentucky 31 Aug 1993 Randy L. Mears
83
EKY
Cyperus bipartitus
31234100072881 Grayson Kentucky 16 Sep 1993 Randy L. Mears
297
EKY
Cyperus bipartitus
31234100072824 Cumberland Kentucky 11 Sep 1993 Randy L. Mears
309
EKY
Cyperus bipartitus
31234100073038 Lewis Kentucky 03 Oct 1993 Randy L. Mears
337
EKY
Cyperus bipartitus
31234100072840 Estill Kentucky 23 Sep 1994 Randy L. Mears
432
EKY
Cyperus bipartitus
31234100072808 Clark Kentucky 11 Sep 1993 Randy L. Mears
194
EKY
Cyperus bipartitus
31234100072790 Calloway Kentucky 15 Sep 1993 Randy L. Mears
266
EKY
Cyperus bipartitus
31234100073095 Pike Kentucky 11 Sep 1993 Randy L. Mears
221
EKY
Cyperus bipartitus
31234100072907 Greenup Kentucky 03 Oct 1993 Randy L. Mears
342
EKY
Cyperus bipartitus
31234100072949 Johnson Kentucky Randy L. Mears
449
EKY
Cyperus bipartitus
31234100073053 Menifee Kentucky 04 Oct 1993 Randy L. Mears
356
EKY
Cyperus bipartitus
31234100072956 Kenton Kentucky 21 Aug 1993 Randy L. Mears
170
EKY
Cyperus bipartitus
31234100439528 Boyle Kentucky 16 Sep 1993 Randy L. Mears
303
EKY
Cyperus bipartitus
31234100072964 Knox Kentucky 06 Sep 1993 Randy L. Mears
171
EKY
Cyperus bipartitus
31234100072998 Lawrence Kentucky 29 Sep 1994 Randy L. Mears
452
EKY
Cyperus bipartitus
31234100073061 Monroe Kentucky 19 Sep 1993 Randy L. Mears
312
EKY
Cyperus bipartitus
31234100072980 Laurel Kentucky 02 Sep 1993 Randy L. Mears
359
EKY
Cyperus bipartitus
31234100073004 Lawrence Kentucky 02 Oct 1993 Randy L. Mears
457
EKY
Cyperus bipartitus
31234100072931 Jefferson Kentucky 06 Sep 2005 Patricia D. Haragan
252005
EKY
Cyperus bipartitus
31234100073137 Rockcastle Kentucky 08 Sep 1994 Randy L. Mears
417
EKY
Cyperus bipartitus
31234100072873 Franklin Kentucky 14 Sep 1993 Randy L. Mears
235
EKY
Cyperus bipartitus
31234100073178 Whitley Kentucky 24 Sep 1994 Randy L. Mears
436
EKY
Cyperus bipartitus
BEREA003967 Lewis Kentucky 02 Sep 1995 Rudy A. Gelis, R.L. Thompson
BC-1119
BEREA
Cyperus bipartitus
BEREA003961 Harlan Kentucky 06 Sep 1993 Randy L. Mears
183
BEREA
Cyperus bipartitus
BEREA003962 Laurel Kentucky 20 Aug 1993 Randy L. Mears
82
BEREA
Cyperus bipartitus
BEREA003960 Garrard Kentucky 01 Sep 2003 Ralph L. Thompson
03-878
BEREA
Cyperus bipartitus
BEREA003969 Madison Kentucky 28 Jul 1993 Gary W. Libby
OB-574
BEREA
Cyperus bipartitus
BEREA003970 Madison Kentucky 19 Sep 1981 David D. Taylor
1277
BEREA
Cyperus bipartitus
BEREA003959 Clark Kentucky 28 Sep 1993 Ralph L. Thompson, Jeanne M. Hoch
93-784
BEREA
Cyperus bipartitus
BEREA003958 Clark Kentucky 11 Sep 1993 Randy L. Mears
194
BEREA
Cyperus bipartitus
BEREA003963 Laurel Kentucky 07 Oct 1997 Ralph L. Thompson
97-809
BEREA
Cyperus bipartitus
BEREA003966 Lewis Kentucky 05 Oct 1996 Rudy A. Gelis, R. L. Thompson
M2-1332
BEREA
Cyperus bipartitus
BEREA003964 Laurel Kentucky 05 Sep 2000 Ralph L. Thompson, Edward W. J. FitzGerald, Jr.
00-584
BEREA
Cyperus bipartitus
BEREA003965 Lewis Kentucky 03 Oct 1993 Randy L. Mears
337
BEREA
Cyperus bipartitus
BEREA003968 Madison Kentucky 06 Sep 1993 Gary W. Libby, Randy L. Mears
OB-70
BEREA
Cyperus bipartitus
BEREA003971 Rockcastle Kentucky 08 Sep 1994 Randy L. Mears
417
BEREA
Cyperus bipartitus
ETSU005881 Carter Tennessee 19 Oct 2015 Frosty Levy
ETSU
Cyperus bipartitus
N/A Carter Tennessee 18 Aug 2016 Frosty Levy
ETSU
Cyperus bipartitus
N/A Carter Tennessee 15 Sep 2012 Frosty Levy
ETSU
Cyperus bipartitus
ETSU002246 Carter Tennessee 20 Sep 2013 Frosty Levy
ETSU
Cyperus bipartitus
ETSU006331 Unicoi Tennessee 24 Aug 2015 Frosty Levy
ETSU
Cyperus bipartitus
N/A Carter Tennessee 01 Aug 2012 Frosty Levy
ETSU
Cyperus bipartitus
N/A Carter Tennessee 07 Sep 2015 Frosty Levy
ETSU
Cyperus bipartitus
31973000011085 Campbell Kentucky
KNK
Cyperus bipartitus
31973000007911 Boone Kentucky 28 Jul 2013 Whitson, Maggie (Mary)
2013-0057
KNK
Cyperus bipartitus
31973000011086 Greenup Kentucky
KNK
Cyperus bipartitus
MDKY00003477 Rowan Kentucky
MDKY
Cyperus rivularis
MDKY00003476 Rowan Kentucky
MDKY
Cyperus rivularis
MDKY00003478 Rowan Kentucky
MDKY
Cyperus rivularis
TENN-V-0038517 Unicoi Tennessee
TENN
Cyperus rivularis
TENN-V-0038497 Davidson Tennessee
TENN
Cyperus rivularis
TENN-V-0038505 Knox Tennessee
TENN
Cyperus rivularis
TENN-V-0038504 Johnson Tennessee
TENN
Cyperus rivularis
TENN-V-0038499 Fentress Tennessee
TENN
Cyperus rivularis
TENN-V-0038507 Maury Tennessee
TENN
Cyperus rivularis
TENN-V-0038503 Johnson Tennessee
TENN
Cyperus rivularis
TENN-V-0038493 Cheatham Tennessee
TENN
Cyperus rivularis
TENN-V-0038495 Cumberland Tennessee
TENN
Cyperus rivularis
TENN-V-0038501 Grundy Tennessee
TENN
Cyperus rivularis
TENN-V-0038513 Putnam Tennessee
TENN
Cyperus rivularis
TENN-V-0038511 Polk Tennessee
TENN
Cyperus rivularis
TENN-V-0038490 Blount Tennessee
TENN
Cyperus rivularis
TENN-V-0038498 Davidson Tennessee
TENN
Cyperus rivularis
TENN-V-0038509 Jefferson Tennessee
TENN
Cyperus bipartitus
TENN-V-0038506 Knox Tennessee
TENN
Cyperus rivularis
TENN-V-0038502 Jefferson Tennessee
TENN
Cyperus rivularis
TENN-V-0038491 Blount Tennessee
TENN
Cyperus rivularis
TENN-V-0038516 Tipton Tennessee
TENN
Cyperus rivularis
TENN-V-0038508 Montgomery Tennessee
TENN
Cyperus rivularis
TENN-V-0038494 Coffee Tennessee
TENN
Cyperus rivularis
TENN-V-0038515 Rutherford Tennessee
TENN
Cyperus rivularis
TENN-V-0038492 Campbell Tennessee
TENN
Cyperus rivularis
TENN-V-0038510 Montgomery Tennessee
TENN
Cyperus rivularis
TENN-V-0039998 Livingston Kentucky
TENN
Cyperus rivularis
TENN-V-0038500 Grundy Tennessee
TENN
Cyperus rivularis
TENN-V-0038489 Anderson Tennessee
TENN
Cyperus rivularis
TENN-V-0038496 Cumberland Tennessee
TENN
Cyperus rivularis
TENN-V-0038514 Rutherford Tennessee
TENN
Cyperus rivularis
TENN-V-0038512 Polk Tennessee
TENN
Cyperus rivularis
TENN-V-0038924 Greene Tennessee
TENN
Cyperus bipartitus
APSC0107015 Warren Tennessee
APSC
Cyperus bipartitus
APSC0039693 Stewart Tennessee 17 Sep 1988 Edward Chester
APSC
Cyperus bipartitus
APSC0039699 Montgomery Tennessee 19 Aug 1983 Edward Chester
APSC
Cyperus bipartitus
APSC0106176 Putnam Tennessee
APSC
Cyperus bipartitus
APSC0039695 Montgomery Tennessee 27 Aug 1994 Edward Chester
APSC
Cyperus bipartitus
APSC0041095 Marion Tennessee
APSC
Cyperus bipartitus
APSC0071277 Jefferson Kentucky
APSC
Cyperus bipartitus
APSC0039694 Trigg Kentucky
APSC
Cyperus bipartitus
APSC0039854 Stewart Tennessee 07 Sep 1991 James Joyner
APSC
Cyperus bipartitus
APSC0107014 Warren Tennessee
APSC
Cyperus bipartitus
APSC0070483 Hardin Kentucky
APSC
Cyperus bipartitus
APSC0107016 Overton Tennessee
APSC
Cyperus bipartitus
APSC0107018 Warren Tennessee
APSC
Cyperus bipartitus
APSC0039698 Montgomery Tennessee 22 Jul 1947 Alfred Clebsch
APSC
Cyperus bipartitus
APSC0039842 Stewart Tennessee 06 Sep 1986 Edward Chester
APSC
Cyperus bipartitus
BEREA025628 Lewis Kentucky
BEREA
Cyperus bipartitus
ETSU027222 Unicoi Tennessee 19 Aug 2018 Frosty Levy, Elaine Walker, Sollie Walker
18308
ETSU
Cyperus bipartitus
31234100072972 Laurel Kentucky 20 Aug 1993 Randy L. Mears
82
EKY
Cyperus bipartitus
31234100073046 Madison Kentucky 28 Jul 1993 Gary W. Libby
OB-574
EKY
Cyperus bipartitus
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