CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record juncus_acutus_ssp._leopoldii - Sun, Nov. 28, 2021 01:03 ET c
Juncus acutus ssp. leopoldii
common namesouthwestern spiny rush
CalPhotos image
more photos
Charles Webber © 1998 California Academy of Sciences  Follow image link for photo data.
life form rhizomatous herb
CA Rare Plant Rank
List 4.2
LIST 4: Limited distribution (Watch List).
     0.2: Fairly endangered in California
state rank
S4      ranking system key
global rank
G5T5      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Counties, states, regions:
Imperial (IMP)?, Los Angeles (LAX), Orange (ORA), Santa Barbara (SBA), San Diego (SDG), San Luis Obispo (SLO), Ventura (VEN), Arizona (AZ), Baja California (BA), Georgia (GA), Nevada (NV), South America (SA)
  • Pending additional quad-level data, only county data are being provided for List 4 plants.
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Coastal dunes (CoDns)(mesic)
•Meadows and seeps (Medws)(alkaline seeps)
•Marshes and swamps (MshSw)(coastal salt)
blooming period (Mar),May-Jun   Months in parentheses are uncommon.
elevation range3 - 900 meters
Threatened by urbanization and flood control.
full nameJuncus acutus L. ssp. leopoldii (Parl.) Snog.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  JUACL Element Code  PMJUN01051
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Sun, Nov. 28, 2021 from

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