Juncus gymnocarpus

ClassificationMonocots
FamilyJuncaceae
Family (Traditional)Juncaceae
GenusJuncus
Species:Juncus gymnocarpus Coville
Common NamePennsylvania Rush
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Mudflat; 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; Leaf Arrangement: absent; Leaf Arrangement: basal; Leaf Complexity: absent; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: N/A (leaves absent); Leaf Type: grass-like; Leaf Venation: parallel; Leaflet Margins: N/A; 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
C value 8
StatusNative; AGCP (OBL), EMP (OBL) (NWPL); TN[S3] (State Rank); G4 (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
Juncus smithii Juncus smithii

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: Blount (TN), Carter (TN), Johnson (TN), Monroe (TN), Polk (TN), White (TN)

Herbaria represented by specimen data listed below: APSC, EKY, ETSU, HTTU, TENN, UCHT, VDB

Range of years during which specimens were collected: 1979 - 2015

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used
TENN-V-0062249 Polk Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062251 Polk Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062246 Monroe Tennessee
TENN
Juncus gymnocarpus
UCHT005234 Polk Tennessee
UCHT
Juncus gymnocarpus
APSC0051767 Polk Tennessee
APSC
Juncus gymnocarpus
HTTU021271 White Tennessee
HTTU
Juncus gymnocarpus
HTTU017761 Carter Tennessee 20 Sep 2008 Mark McIntosh
76		 HTTU
Juncus gymnocarpus
BRIT194599 Carter Tennessee 05 Aug 1986 John A. Churchill, M.D.
86280		 VDB
Juncus gymnocarpus
BRIT194601 Polk Tennessee 01 Sep 1994 Milo Pyne
94-326		 VDB
Juncus gymnocarpus
BRIT194600 Carter Tennessee 02 Jul 1979 Paul Somers
1803		 VDB
Juncus gymnocarpus
BRIT194597 Monroe Tennessee 16 Aug 1979 B. Eugene Wofford
79-248		 VDB
Juncus gymnocarpus
ETSU025398 Johnson Tennessee 15 Mar 2013 Adam McCullough
DOEM 0022		 ETSU
Juncus gymnocarpus
ETSU025390 Johnson Tennessee 11 Mar 2013 Adam McCullough
DOEM 0014		 ETSU
Juncus gymnocarpus
ETSU030137 Johnson Tennessee
ETSU
Juncus gymnocarpus
ETSU030141 Carter Tennessee
ETSU
Juncus gymnocarpus
ETSU030138 Johnson Tennessee
ETSU
Juncus gymnocarpus
ETSU030140 Carter Tennessee
ETSU
Juncus gymnocarpus
ETSU030134 Johnson Tennessee
ETSU
Juncus gymnocarpus
ETSU030139 Carter Tennessee
ETSU
Juncus gymnocarpus
ETSU030953 Carter Tennessee
ETSU
Juncus gymnocarpus
APSC0035766 Polk Tennessee
APSC
Juncus gymnocarpus
UCHT005235 Polk Tennessee
UCHT
Juncus gymnocarpus
UCHT005233 Polk Tennessee
UCHT
Juncus gymnocarpus
31234100098795 Monroe Tennessee 25 Jun 1979 B. Eugene Wofford
79-176		 EKY
Juncus gymnocarpus
ETSU002644 Carter Tennessee
ETSU
Juncus gymnocarpus
ETSU002642 Carter Tennessee
ETSU
Juncus gymnocarpus
ETSU002643 Carter Tennessee 11 Jul 2014 Frosty Levy
 ETSU
Juncus gymnocarpus
ETSU002621 Johnson Tennessee 07 Apr 2013 Frosty Levy
 ETSU
Juncus gymnocarpus
TENN-V-0062241 Blount Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062244 Monroe Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062247 Monroe Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062245 Monroe Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062242 Carter Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062248 Monroe Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062243 Carter Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062252 Polk Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062240 Tennessee
TENN
Juncus gymnocarpus
TENN-V-0062250 Polk Tennessee
TENN
Juncus gymnocarpus
ETSU005719 Carter Tennessee 01 Jul 2015 Frosty Levy
 ETSU
Juncus gymnocarpus
ETSU002641 Carter Tennessee
ETSU
Juncus gymnocarpus
N/A Carter Tennessee 14 Jun 2012 Frosty Levy
 ETSU
Juncus gymnocarpus
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