Cyperus retrofractus

ClassificationMonocots
FamilyCyperaceae
Family (Traditional)Cyperaceae
GenusCyperus
SpeciesCyperus retrofractus (L.) Torr.
Common Namerough flatsedge
Growth Habitgraminoid
Plant NotesLeaf Persistance: Deciduous; Habit: graminoid; Woody/Herbaceous: herbaceous; Terrestrial/Aquatic: Terrestrial;
Leaf Arrangement: Basal; Simple/Compound: Simple; Leaf Complexity: 0; Leaf Type: Grasslike;
Hypanthium: No; Perianth Absent: No; Fruit Color: ;
*Average C-Value: 5.2
C value 5
StatusNative; AGCP (FACU), EMP (UPL) (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

No synonyms exist for this species.

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: Barren (KY), Bell (KY), Calloway (KY), Carter (KY), Harlan (KY), Laurel (KY), Lyon (KY), McCreary (KY), Madison (KY), Pike (KY), Rowan (KY), Whitley (KY), Benton (TN), Campbell (TN), Carroll (TN), Davidson (TN), Fayette (TN), Johnson (TN), Knox (TN), Marion (TN), Morgan (TN), Union (TN), Washington (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, BOON, EKY, KNK, MDKY, TENN, UCHT, VDB

Range of years during which specimens were collected: 1971 - 1993

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100077179 McCreary Kentucky 20 Aug 1993 Randy L. Mears
91
EKY
Cyperus retrofractus
31234100077187 Calloway Kentucky 13 Aug 1990 Landon E. McKinney
4488
EKY
Cyperus retrofractus
BEREA004137 Bell Kentucky 10 Oct 1988 Ralph L. Thompson, Patricia Thompson
88-2714
BEREA
Cyperus retrofractus
BEREA004136 Calloway Kentucky 25 Jul 1990 Landon E. McKinney and Terri Hamilton
4418
BEREA
Cyperus retrofractus
31973000011365 Rowan Kentucky
KNK
Cyperus retrofractus
MDKY00003473 Rowan Kentucky
MDKY
Cyperus retrofractus
TENN-V-0038485 Washington Tennessee
TENN
Cyperus retrofractus
TENN-V-0038482 Johnson Tennessee
TENN
Cyperus retrofractus
TENN-V-0038484 Union Tennessee
TENN
Cyperus retrofractus
TENN-V-0038477 Campbell Tennessee
TENN
Cyperus retrofractus
TENN-V-0038479 Davidson Tennessee
TENN
Cyperus retrofractus
TENN-V-0038480 Fayette Tennessee
TENN
Cyperus retrofractus
UCHT003804 Marion Tennessee
UCHT
Cyperus retrofractus
006948 Carroll Tennessee
BOON
Cyperus retrofractus
31234100077211 Carroll Tennessee 17 Sep 1971 Betty Toler Allman
774
EKY
Cyperus retrofractus
31234100077195 Harlan Kentucky 28 Sep 1978 Richard H. Hannan
511
EKY
Cyperus retrofractus
BEREA004138 McCreary Kentucky 20 Aug 1993 Randy L. Mears
91
BEREA
Cyperus retrofractus
MDKY00003470 Carter Kentucky
MDKY
Cyperus retrofractus
MDKY00003471 Rowan Kentucky
MDKY
Cyperus retrofractus
MDKY00003472 Rowan Kentucky
MDKY
Cyperus retrofractus
TENN-V-0038478 Carroll Tennessee
TENN
Cyperus retrofractus
TENN-V-0039919 Madison Kentucky
TENN
Cyperus retrofractus
TENN-V-0038483 Knox Tennessee
TENN
Cyperus retrofractus
TENN-V-0038481 Fayette Tennessee
TENN
Cyperus retrofractus
APSC0078414 Whitley Kentucky
APSC
Cyperus retrofractus
APSC0039685 Lyon Kentucky
APSC
Cyperus retrofractus
APSC0068304 Whitley Kentucky
APSC
Cyperus retrofractus
APSC0039686 Lyon Kentucky
APSC
Cyperus retrofractus
APSC0062476 Campbell Tennessee
APSC
Cyperus retrofractus
APSC0064833 Carroll Tennessee
APSC
Cyperus retrofractus
APSC0068303 Pike Kentucky
APSC
Cyperus retrofractus
APSC0072292 Calloway Kentucky 09 Sep 1972 Raymond Athey
APSC
Cyperus retrofractus
APSC0102273 Harlan Kentucky
APSC
Cyperus retrofractus
APSC0069442 Harlan Kentucky
APSC
Cyperus retrofractus
BRIT163460 Tennessee
VDB
Cyperus retrofractus
BRIT163463 Tennessee
VDB
Cyperus retrofractus
BRIT163462 Tennessee
VDB
Cyperus retrofractus
APSC0068301 McCreary Kentucky
APSC
Cyperus retrofractus
APSC0072293 Barren Kentucky
APSC
Cyperus retrofractus
APSC0069145 McCreary Kentucky
APSC
Cyperus retrofractus
APSC0068300 Whitley Kentucky
APSC
Cyperus retrofractus
APSC0039688 Benton Tennessee
APSC
Cyperus retrofractus
APSC0068302 Laurel Kentucky 19 Aug 1987 Max Medley
APSC
Cyperus retrofractus
UCHT038837 Morgan Tennessee
UCHT
Cyperus retrofractus
BRIT163459 Tennessee
VDB
Cyperus retrofractus
BRIT163464 Tennessee
VDB
Cyperus retrofractus
BRIT163465 Tennessee
VDB
Cyperus retrofractus
BRIT163461 Tennessee
VDB
Cyperus retrofractus
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Plant Photos

Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Dwayne Estes
Cyperus retrofractus - Theo Witsell
Cyperus retrofractus - Theo Witsell
Cyperus retrofractus - Theo Witsell
Cyperus retrofractus - Theo Witsell
Cyperus retrofractus - Theo Witsell
Cyperus retrofractus - Theo Witsell