Juncus dichotomus

Classification	Monocots
Family	Juncaceae
Family (Traditional)	Juncaceae
Genus	Juncus
Species:	Juncus dichotomus Ell.
Common Name	Forked Rush
Growth Habit	graminoid
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: GRSM; Natural Area Presence: LGS; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: graminoid; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: May; 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
C value	4
Status	Native; AGCP (FACW), EMP (FACW) (NWPL); TN[SNR] (State Rank); G5 (Global Rank)
Specimen(s)	View and Download Specimen Details »

** Not applicable or data not available.

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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

Interior River Valleys and Hills
- Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
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Synonyms

Synonym	Full Citation
Juncus albicans	Juncus albicans
Juncus dichotomus var. dichotomus	Juncus dichotomus var. dichotomus
Juncus dichotomus var. platyphyllus	Juncus dichotomus var. platyphyllus Wiegand
Juncus platyphyllus	Juncus platyphyllus (Wieg.) Fernald
Juncus tenuis subsp. dichotomus	Juncus tenuis subsp. dichotomus
Juncus tenuis var. platyphyllus	Juncus tenuis var. platyphyllus (Wiegand) Cory

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: Campbell (KY), Harrison (KY), Johnson (KY), McCracken (KY), Cocke (TN), Cumberland (TN), DeKalb (TN), Dickson (TN), Grundy (TN), Lake (TN), Marion (TN), Montgomery (TN), Putnam (TN), Rutherford (TN), Scott (TN)

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

Range of years during which specimens were collected: 1941 - 2017

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
APSC0069743	Campbell	Kentucky			APSC Juncus dichotomus
UCHT035136	Cumberland	Tennessee			UCHT Juncus dichotomus
BRIT35263	Cumberland	Tennessee	09 Jul 1972	R. Kral 47412	VDB Juncus dichotomus
APSC0035909	Rutherford	Tennessee			APSC Juncus dichotomus
APSC0110072	Scott	Tennessee			APSC Juncus dichotomus
APSC0063174	Harrison	Kentucky	05 Jul 2016	Mason Brock	APSC Juncus dichotomus
BRIT35262	Cocke	Tennessee	26 Aug 1941	Nathan H. Woodruff s.n. [BRIT35262]	VDB Juncus dichotomus
APSC0101016	Johnson	Kentucky			APSC Juncus dichotomus
APSC0101015	Johnson	Kentucky			APSC Juncus dichotomus
BRIT35267	Grundy	Tennessee	04 Jul 1942	Jesse M. Shaver 2517	VDB Juncus dichotomus
BRIT35265	Dickson	Tennessee	20 May 1986	Kevin H. Souza 86-293	VDB Juncus dichotomus
BRIT35264	DeKalb	Tennessee	01 Sep 1987	Ed. L. Organ s.n [BRIT35264]	VDB Juncus dichotomus
APSC0055007	Rutherford	Tennessee	20 May 2016	Devin Rodgers	APSC Juncus dichotomus
BRIT35270	Putnam	Tennessee	14 May 1992	R. Kral 80471	VDB Juncus dichotomus
TENN-V-0174652	Marion	Tennessee			TENN Juncus platyphyllus
TENN-V-0061971	Putnam	Tennessee			TENN Juncus dichotomus
APSC0064805	Rutherford	Tennessee			APSC Juncus dichotomus
BRIT35268	Lake	Tennessee	07 Jun 1986	Milo Guthrie 1011	VDB Juncus dichotomus
APSC0055332	Cumberland	Tennessee	16 Jun 2015	Devin Rodgers	APSC Juncus dichotomus
APSC0054019	Marion	Tennessee			APSC Juncus dichotomus
APSC0092931	Montgomery	Tennessee	22 Sep 2017	Mason Brock	APSC Juncus dichotomus
BRIT215209	McCracken	Kentucky			VDB Juncus dichotomus

View a List of All Ecological Communities

Juncus dichotomus

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos