Juncus biflorus

ClassificationMonocots
FamilyJuncaceae
Family (Traditional)Juncaceae
GenusJuncus
Species:Juncus biflorus Elliot
Common NameBog Rush; Grassleaf Rush
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Natural Area Presence: GILES; Natural Area Presence: GRSM; Natural Area Presence: LGS; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: graminoid; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; 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: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Perianth Present: Yes; Sporangium Arrangement: N/A; Stamen Number: 3
C value 5
StatusNative; TN[SNR] KY[S4S5] (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: Breckinridge (KY), Calloway (KY), Casey (KY), Christian (KY), Crittenden (KY), Franklin (KY), Graves (KY), Hardin (KY), Henderson (KY), Jackson (KY), Laurel (KY), Lincoln (KY), Lyon (KY), McCracken (KY), Madison (KY), Marshall (KY), Menifee (KY), Montgomery (KY), Powell (KY), Pulaski (KY), Rockcastle (KY), Rowan (KY), Todd (KY), Trigg (KY), Whitley (KY), Anderson (TN), Benton (TN), Bradley (TN), Carroll (TN), Claiborne (TN), Coffee (TN), Cumberland (TN), Dickson (TN), Dyer (TN), Fayette (TN), Franklin (TN), Giles (TN), Grainger (TN), Greene (TN), Grundy (TN), Hamilton (TN), Hardeman (TN), Hardin (TN), Hawkins (TN), Haywood (TN), Henry (TN), Jackson (TN), Knox (TN), Lawrence (TN), McNairy (TN), Marion (TN), Meigs (TN), Montgomery (TN), Moore (TN), Obion (TN), Polk (TN), Rutherford (TN), Sequatchie (TN), Shelby (TN), Stewart (TN), Unicoi (TN), Warren (TN), White (TN)

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

Range of years during which specimens were collected: 1962 - 2019

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100745635 Todd Kentucky 30 Jun 1962 Elizabeth M. Browne
5681
EKY
Juncus biflorus
31234100098043 Franklin Kentucky 09 Jul 1981 S. P. Rice
659
EKY
Juncus biflorus
BEREA004786 Rockcastle Kentucky
BEREA
Juncus biflorus
BEREA004785 Pulaski Kentucky
BEREA
Juncus biflorus
31973000014408 Dickson Tennessee
KNK
Juncus biflorus
MDKY00005480 Rowan Kentucky
MDKY
Juncus biflorus
MDKY00005478 Rowan Kentucky
MDKY
Juncus biflorus
MDKY00005481 Rowan Kentucky
MDKY
Juncus biflorus
MDKY00005477 Rowan Kentucky
MDKY
Juncus biflorus
TENN-V-0061536 Knox Tennessee
TENN
Juncus biflorus
TENN-V-0061492 Bradley Tennessee
TENN
Juncus biflorus
TENN-V-0061491 Benton Tennessee
TENN
Juncus biflorus
TENN-V-0061530 Haywood Tennessee
TENN
Juncus biflorus
TENN-V-0061512 Fayette Tennessee
TENN
Juncus biflorus
TENN-V-0061541 Marion Tennessee
TENN
Juncus biflorus
TENN-V-0061511 Fayette Tennessee
TENN
Juncus biflorus
31234100098100 Montgomery Kentucky 27 Jun 1984 Julian Campbell
468
EKY
Juncus biflorus
31234100098191 Grundy Tennessee 03 Aug 1988 Ronald L. Jones
5519
EKY
Juncus biflorus
31234100098126 Pulaski Kentucky 15 Jul 1991 John Richard Abbott
1060
EKY
Juncus biflorus
31234100098035 Franklin Kentucky 29 Aug 1984 Steven Rice
EKY
Juncus biflorus
31234100098142 Rowan Kentucky 01 Jul 1990 Ronald L. Jones
6496
EKY
Juncus biflorus
BEREA004787 Trigg Kentucky
BEREA
Juncus biflorus
BEREA004778 Laurel Kentucky
BEREA
Juncus biflorus
TENN-V-0061517 Giles Tennessee
TENN
Juncus biflorus
TENN-V-0061533 Jackson Tennessee
TENN
Juncus biflorus
TENN-V-0061547 Montgomery Tennessee
TENN
Juncus biflorus
TENN-V-0061522 Greene Tennessee
TENN
Juncus biflorus
TENN-V-0061528 Haywood Tennessee
TENN
Juncus biflorus
TENN-V-0061525 Hardeman Tennessee
TENN
Juncus biflorus
TENN-V-0061556 Rutherford Tennessee
TENN
Juncus biflorus
TENN-V-0061499 Coffee Tennessee
TENN
Juncus biflorus
31234100460789 Tennessee 09 Jul 1972 Betty Ann Thompson
659
EKY
Juncus biflorus
BEREA004774 Calloway Kentucky
BEREA
Juncus biflorus
BEREA004784 Pulaski Kentucky
BEREA
Juncus biflorus
BEREA004781 Madison Kentucky
BEREA
Juncus biflorus
ETSU002601 Unicoi Tennessee 12 Jun 2014 Frosty Levy
ETSU
Juncus biflorus
TENN-V-0062373 Hardin Tennessee
TENN
Juncus biflorus
TENN-V-0061527 Haywood Tennessee
TENN
Juncus biflorus
TENN-V-0061538 Lawrence Tennessee
TENN
Juncus biflorus
TENN-V-0061515 Franklin Tennessee
TENN
Juncus biflorus
TENN-V-0061554 Rutherford Tennessee
TENN
Juncus biflorus
TENN-V-0061555 Rutherford Tennessee
TENN
Juncus biflorus
TENN-V-0063003 McCracken Kentucky
TENN
Juncus biflorus
TENN-V-0061524 Hamilton Tennessee
TENN
Juncus biflorus
TENN-V-0061253 Unicoi Tennessee
TENN
Juncus biflorus
TENN-V-0061493 Carroll Tennessee
TENN
Juncus biflorus
TENN-V-0061501 Coffee Tennessee
TENN
Juncus biflorus
31234100098076 Lincoln Kentucky 03 Jul 1993 Ronald L. Jones
7423
EKY
Juncus biflorus
31234100098001 Calloway Kentucky 22 Jun 1999 Ralph L. Thompson
99-269
EKY
Juncus biflorus
31234100098134 Pulaski Kentucky 30 Jun 1988 Frances Carter
79
EKY
Juncus biflorus
BEREA004776 Jackson Kentucky
BEREA
Juncus biflorus
MDKY00005476 Rowan Kentucky
MDKY
Juncus biflorus
MDKY00005479 Rowan Kentucky
MDKY
Juncus biflorus
TENN-V-0061504 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061532 Henry Tennessee
TENN
Juncus biflorus
TENN-V-0061531 Henry Tennessee
TENN
Juncus biflorus
TENN-V-0061513 Franklin Tennessee
TENN
Juncus biflorus
TENN-V-0061551 Obion Tennessee
TENN
Juncus biflorus
TENN-V-0061526 Haywood Tennessee
TENN
Juncus biflorus
TENN-V-0061523 Grundy Tennessee
TENN
Juncus biflorus
TENN-V-0061494 Carroll Tennessee
TENN
Juncus biflorus
TENN-V-0061509 Dickson Tennessee
TENN
Juncus biflorus
TENN-V-0061560 White Tennessee
TENN
Juncus biflorus
31234100098092 Madison Kentucky 26 Jun 1973 J. Stuart Lassetter
1990
EKY
Juncus biflorus
31234100098159 Whitley Kentucky 25 Jul 1993 Steve Walker
714
EKY
Juncus biflorus
31234100098068 Graves Kentucky 06 Jun 2010 Deborah White
7
EKY
Juncus biflorus
31234100098019 Calloway Kentucky 20 Jun 1982 Michael Woods
749
EKY
Juncus biflorus
BEREA004777 Jackson Kentucky
BEREA
Juncus biflorus
TENN-V-0061502 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061539 Lawrence Tennessee
TENN
Juncus biflorus
TENN-V-0061559 Warren Tennessee
TENN
Juncus biflorus
TENN-V-0061497 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061503 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061505 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061537 Knox Tennessee
TENN
Juncus biflorus
TENN-V-0061498 Coffee Tennessee
TENN
Juncus biflorus
UCHT005102 Coffee Tennessee 31 Aug 1966 S. H. Sohmer
UCHT
Juncus biflorus
APSC0035986 Stewart Tennessee
APSC
Juncus biflorus
31234100098027 Casey Kentucky 01 Jul 1988 Bruce Hoagland
260
EKY
Juncus biflorus
31234100098084 Madison Kentucky 26 Jun 1973 J. Stuart Lassetter
1990
EKY
Juncus biflorus
TENN-V-0061521 Grainger Tennessee
TENN
Juncus biflorus
TENN-V-0061550 Montgomery Tennessee
TENN
Juncus biflorus
TENN-V-0061506 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061552 Obion Tennessee
TENN
Juncus biflorus
TENN-V-0061553 Polk Tennessee
TENN
Juncus biflorus
TENN-V-0061519 Giles Tennessee
TENN
Juncus biflorus
TENN-V-0061534 Knox Tennessee
TENN
Juncus biflorus
TENN-V-0061529 Haywood Tennessee
TENN
Juncus biflorus
TENN-V-0061549 Montgomery Tennessee
TENN
Juncus biflorus
TENN-V-0061558 Shelby Tennessee
TENN
Juncus biflorus
TENN-V-0061520 Giles Tennessee
TENN
Juncus biflorus
UCHT005101 Coffee Tennessee 31 Aug 1966 S. H. Sohmer
UCHT
Juncus biflorus
APSC0064716 Breckinridge Kentucky 21 Jul 1982 Max Medley
APSC
Juncus biflorus
31234100098050 Franklin Kentucky 09 Jul 1984 Steven Rice
EKY
Juncus biflorus
BEREA004782 Madison Kentucky
BEREA
Juncus biflorus
BEREA004783 Madison Kentucky
BEREA
Juncus biflorus
BEREA004775 Jackson Kentucky
BEREA
Juncus biflorus
BEREA004773 Calloway Kentucky
BEREA
Juncus biflorus
TENN-V-0061508 Cumberland Tennessee
TENN
Juncus biflorus
TENN-V-0061507 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061500 Coffee Tennessee
TENN
Juncus biflorus
TENN-V-0061516 Giles Tennessee
TENN
Juncus biflorus
TENN-V-0061542 McNairy Tennessee
TENN
Juncus biflorus
TENN-V-0061495 Claiborne Tennessee
TENN
Juncus biflorus
TENN-V-0061561 White Tennessee
TENN
Juncus biflorus
UCHT005100 Marion Tennessee 27 Jul 1998 John Beck
2522
UCHT
Juncus biflorus
APSC0036009 Montgomery Tennessee
APSC
Juncus biflorus
APSC0035991 Stewart Tennessee
APSC
Juncus biflorus
APSC0038002 Dickson Tennessee
APSC
Juncus biflorus
31234100779782 Menifee Kentucky 07 Jul 2017 Thomas McFadden
559
EKY
Juncus biflorus
31234100098118 Powell Kentucky 27 Jun 1974 W. Meijer
EKY
Juncus biflorus
TENN-V-0061510 Dyer Tennessee
TENN
Juncus biflorus
TENN-V-0061548 Montgomery Tennessee
TENN
Juncus biflorus
TENN-V-0061557 Sequatchie Tennessee
TENN
Juncus biflorus
TENN-V-0062358 Franklin Tennessee
TENN
Juncus biflorus
TENN-V-0061518 Giles Tennessee
TENN
Juncus biflorus
TENN-V-0061540 Lawrence Tennessee
TENN
Juncus biflorus
UCHT005112 Marion Tennessee 13 Jul 1998 John Beck
2469
UCHT
Juncus biflorus
APSC0117316 Breckinridge Kentucky
APSC
Juncus biflorus
APSC0035988 Stewart Tennessee
APSC
Juncus biflorus
APSC0079795 Graves Kentucky
APSC
Juncus biflorus
APSC0035987 Lyon Kentucky 12 Jul 1985 Edward Chester
APSC
Juncus biflorus
APSC0101368 Crittenden Kentucky
APSC
Juncus biflorus
APSC0076467 Marshall Kentucky
APSC
Juncus biflorus
TENN-V-0061545 Meigs Tennessee
TENN
Juncus biflorus
TENN-V-0061543 Meigs Tennessee
TENN
Juncus biflorus
TENN-V-0061490 Anderson Tennessee
TENN
Juncus biflorus
APSC0076468 Marshall Kentucky
APSC
Juncus biflorus
APSC0104852 Todd Kentucky 15 Jul 2018 Mason Brock
APSC
Juncus biflorus
APSC0035998 Rutherford Tennessee
APSC
Juncus biflorus
APSC0116820 Coffee Tennessee
APSC
Juncus biflorus
APSC0035985 Stewart Tennessee
APSC
Juncus biflorus
APSC0101367 Todd Kentucky 02 Jul 1976 Raymond Athey
APSC
Juncus biflorus
APSC0035996 Moore Tennessee
APSC
Juncus biflorus
APSC0038014 Montgomery Tennessee
APSC
Juncus biflorus
APSC0035992 Trigg Kentucky 21 Jun 1983 Edward Chester
APSC
Juncus biflorus
APSC0100426 Christian Kentucky 28 Aug 1980 Max Medley
APSC
Juncus biflorus
APSC0035990 Trigg Kentucky 24 Jun 2003 Ralph Thompson
APSC
Juncus biflorus
N/A Hawkins Tennessee 01 Sep 2019 Frosty Levy, Elaine Walker
ETSU
Juncus biflorus
TENN-V-0061535 Knox Tennessee
TENN
Juncus biflorus
UCHT005109 Hamilton Tennessee 15 Jul 2015 Joey Shaw
UCHT
Juncus biflorus
007608 Carroll Tennessee 09 Jul 1972 Bety Ann Thompson
659
BOON
Juncus biflorus
007609 Carroll Tennessee 09 Jun 1972 Betty Ann Thompson
536
BOON
Juncus biflorus
BRIT169189 Tennessee
VDB
Juncus biflorus
BRIT169210 Tennessee
VDB
Juncus biflorus
BRIT169195 Tennessee
VDB
Juncus biflorus
BRIT169204 Tennessee
VDB
Juncus biflorus
BRIT169205 Tennessee
VDB
Juncus biflorus
BRIT169192 Tennessee
VDB
Juncus biflorus
BRIT169197 Tennessee
VDB
Juncus biflorus
BRIT169190 Tennessee
VDB
Juncus biflorus
N/A Hawkins Tennessee 14 Jul 2019 Frosty Levy, Elaine Walker
ETSU
Juncus biflorus
MEM006778 Graves Kentucky 05 Jul 1973 Raymond Athey
2480
MEM
Juncus biflorus
MEM011999 Crittenden Kentucky 16 Jun 1976 Raymond Athey
3432
MEM
Juncus biflorus
APSC0038001 Montgomery Tennessee
APSC
Juncus biflorus
APSC0101052 Henderson Kentucky
APSC
Juncus biflorus
BRIT169209 Tennessee
VDB
Juncus biflorus
APSC0035995 Giles Tennessee
APSC
Juncus biflorus
APSC0038012 Rutherford Tennessee
APSC
Juncus biflorus
APSC0038010 Meigs Tennessee
APSC
Juncus biflorus
APSC0065210 Montgomery Tennessee 21 Jun 1989 R.Kral
APSC
Juncus biflorus
HTTU017727 Kentucky
HTTU
Juncus biflorus
BRIT169194 Tennessee
VDB
Juncus biflorus
BRIT169191 Tennessee
VDB
Juncus biflorus
BEREA025842 Madison Kentucky
BEREA
Juncus biflorus
APSC0038017 Christian Kentucky 19 Aug 1993 Sallie M. Noel
APSC
Juncus biflorus
APSC0038015 Montgomery Tennessee
APSC
Juncus biflorus
APSC0035989 Lyon Kentucky 26 Jun 1985 Edward Chester
APSC
Juncus biflorus
BRIT169206 Tennessee
VDB
Juncus biflorus
BRIT169201 Tennessee
VDB
Juncus biflorus
BRIT169202 Tennessee
VDB
Juncus biflorus
ETSU026753 Hawkins Tennessee 13 Sep 2019 Frosty Levy, Elaine Walker
19909
ETSU
Juncus biflorus
ETSU026655 Hawkins Tennessee 01 Sep 2019 Frosty Levy, Elaine Walker
19811
ETSU
Juncus biflorus
TENN-V-0061546 Montgomery Tennessee
TENN
Juncus biflorus
TENN-V-0061496 Coffee Tennessee
TENN
Juncus biflorus
APSC0038003 Montgomery Tennessee
APSC
Juncus biflorus
APSC0065154 Montgomery Tennessee
APSC
Juncus biflorus
APSC0117315 Breckinridge Kentucky
APSC
Juncus biflorus
APSC0038004 Stewart Tennessee
APSC
Juncus biflorus
APSC0064736 Hardin Kentucky
APSC
Juncus biflorus
APSC0079796 Hardin Kentucky
APSC
Juncus biflorus
APSC0035993 Hardin Tennessee 15 Jul 2010 David H. Webb
APSC
Juncus biflorus
TENN-V-0244177 Rutherford Tennessee
TENN
Juncus biflorus
UOS07218 Coffee Tennessee 10-Jul-96 Douglas E. Kennemore, Jr.
UOS
Juncus biflorus
BRIT169203 Tennessee
VDB
Juncus biflorus
ETSU026653 Hawkins Tennessee 01 Sep 2019 Frosty Levy, Elaine Walker
19808
ETSU
Juncus biflorus
APSC0071789 Hardin Kentucky
APSC
Juncus biflorus
UOS07227 Coffee Tennessee 18 Sep 1996 Douglas E. Kennemore, Jr.
UOS
Juncus biflorus
BRIT169198 Tennessee
VDB
Juncus biflorus
BRIT169193 Tennessee
VDB
Juncus biflorus
BRIT169200 Tennessee
VDB
Juncus biflorus
BRIT169187 Tennessee
VDB
Juncus biflorus
BRIT169208 Tennessee
VDB
Juncus biflorus
BRIT169196 Tennessee
VDB
Juncus biflorus
BRIT35266 Grundy Tennessee 21 Aug 1992 D. Rust
156
VDB
Juncus biflorus
BRIT169207 Tennessee
VDB
Juncus biflorus
N/A Hawkins Tennessee 13 Sep 2019 Frosty Levy, Elaine Walker
ETSU
Juncus biflorus
N/A Hawkins Tennessee 01 Sep 2019 Frosty Levy, Elaine Walker
ETSU
Juncus biflorus
ETSU026470 Hawkins Tennessee 14 Jul 2019 Frosty Levy, Elaine Walker
19635
ETSU
Juncus biflorus
TENN-V-0242200 Hardin Tennessee
TENN
Juncus biflorus
TENN-V-0061544 Meigs Tennessee
TENN
Juncus biflorus
TENN-V-0061514 Franklin Tennessee
TENN
Juncus biflorus
APSC0038016 Benton Tennessee
APSC
Juncus biflorus
APSC0097088 Shelby Tennessee
APSC
Juncus biflorus
APSC0035997 Warren Tennessee 08 Jun 2004 Claude Bailey
APSC
Juncus biflorus
APSC0038011 Dickson Tennessee
APSC
Juncus biflorus
APSC0035999 Montgomery Tennessee
APSC
Juncus biflorus
BRIT169211 Tennessee
VDB
Juncus biflorus
BRIT169199 Tennessee
VDB
Juncus biflorus
BRIT169188 Tennessee
VDB
Juncus biflorus
MEM005899 McCracken Kentucky 19 Jun 1969 Raymond Athey
676
MEM
Juncus biflorus
MEM008646 Marshall Kentucky 15 Jun 1974 Raymond Athey
2793
MEM
Juncus biflorus
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Plant Photos

Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes
Juncus biflorus - Dwayne Estes