Species Details

Juncus cooperi

Cooper's rush

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Classification

Scientific Name: Juncus cooperi Engelm.
Common Name: Cooper's rush
Family:	Juncaceae
Element Code:	PMJUN010T0
USDA Plants Symbol:	JUCO3
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S3
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-01-05

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Apr-May(Aug)

Elevation:
-260 - 1770 meters
-855 - 5805 feet

General Habitats:

Meadows and seeps (mesic, alkaline or saline)

Microhabitat Details:

Microhabitat:

Notes

Notes: Possibly threatened by hydrologic alterations and grazing. See Transactions of the Academy of Science of St. Louis 2:590 (1868) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV)

California Counties and Islands: Name (Code)
Imperial (IMP), Inyo (INY), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)

Quads: Name (Quad Code)
Badwater (3611627), Ballarat (3611712), Beatty Junction (3611658), Carrizo Mtn. NE (3211681), Chloride City (3611668), Cottonwood Canyon (3611753), Craig Canyon (3611767), Devils Golf Course (3611637), Devils Speedway (3611638), Durmid (3311547), East of Echo Canyon (3611645), Echo Canyon (3611646), Frink (3311536), Furnace Creek (3611647), Grapevine Peak (3611782), Jacumba (3211662), Jail Canyon (3611722), Lower Warm Springs (3611777), Manix (3411685), Myoma (3311673), Nevares Peak (3611657), Oasis (3311641), Old Ibex Pass (3511664), Orocopia Canyon (3311557), Palm View Peak (3311665), Panamint Butte (3611743), Paradise Range (3511627), Resting Spring (3511682), Seventeen Palms (3311631), Shoshone (3511683), Soda Lake North (3511621), Tecopa (3511672), Thimble Peak (3611771), Topock (3411464), Twelvemile Spring (3611612), Ubehebe Crater (3711714), West of Furnace Creek (3611648), West of Teakettle Junction (3611776), Wister (3311535)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory