Species Details

Juncus nodosus

knotted rush

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Photo of Juncus nodosus
© 2005 James M. Andre
Photo of Juncus nodosus
© 2005 James M. Andre
Photo of Juncus nodosus
© 2010 Louis-M. Landry
CA Rare Plant Rank: 2B.3
Fed List: None
State List: None
Global Rank: G5
State Rank:
Other Status: IUCN_LC
CRPR Changes:
changed from 2.3 to 2B.3 on 2013-06-12
Add Date: 1974-01-01
Date Edited: 2022-01-05
Lifeform: perennial rhizomatous herb
Blooming Period: Jul-Sep
30 - 1980 meters
100 - 6495 feet
General Habitat:
  • Meadows and seeps (mesic)
  • Marshes and swamps (lake margins)
General Micro Habitat:
Micro Habitat:
Total Occurrences: 12
Element Occurrence Ranks:
0 0 0 0 0 12
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 4
Presumed Extant 12
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Alaska (AK), Arizona (AZ), California (CA), Colorado (CO), Connecticut (CT), Delaware (DE), Idaho (ID), Illinois (IL), Indiana (IN), Iowa (IA), Kansas (KS), Maine (ME), Massachusetts (MA), Michigan (MI), Minnesota (MN), Missouri (MO), Montana (MT), Nebraska (NE), Nevada (NV), New Hampshire (NH), New Jersey (NJ), New Mexico (NM), New York (NY), North Dakota (ND), Ohio (OH), Oklahoma (OK), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), South Dakota (SD), Texas (TX), Utah (UT), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI), Wyoming (WY)
California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)
Quads: Name (Quad Code)
Bighorn Basin (3411576), Clark Mtn. (3511555), Columbia Mtn. (3511514), Deep Springs Lake (3711831), Emigrant Pass (3611732), Furnace Creek (3611647), Mescal Range (3511545), Mount San Antonio (3411736), Nevares Peak (3611657), Old Woman Statue (3411552), Painted Rock Wash (3411551), Van Winkle Spring (3411575)
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.


Presumed Extant
Counties   Quads