Taxon Report
Juncus cooperi Engelm.Cooper's rush |
 © 2018 Neal Kramer |
Species Description:
Juncus cooperi, commonly known as Cooper's rush, is a perennial herb in the Juncaceae that is found in California and elsewhere. It occurs within Meadows and seeps (mesic, and alkaline or saline), growing at elevations from -260 to 1770 meters. Juncus cooperi is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.
Classification
|
Scientific Name: |
Juncus cooperi Engelm. |
|
Common Name: |
Cooper's rush |
| Family: | Juncaceae |
| Element Code: | PMJUN010T0 |
| USDA Plants Symbol: | JUCO3 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Apr-May(Aug) | Apr-May(Aug) |
| Elevation: | -260-1770 (-855-5805) |
| General Habitats: | Meadows and seeps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.3 |
| Global Rank: | G4 |
|
State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: False | |
| 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) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 24 January 2025].