CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record arenaria_paludicola - Wed, Dec. 8, 2021, 05:26 ET b
Arenaria paludicola
common namemarsh sandwort
CalPhotos image
more photos
© 2007 University and Jepson Herbaria  Follow image link for photo data.
life form stoloniferous herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously endangered in California
state rank
S1      ranking system key
global rank
G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
Where did the "RED" code go?
CA state listingEndangered  02/90
federal listingEndangered  08/03/93
where found
MAPS - Use v8 link below.

Topographic quads (8):
San Bernardino South (107D)* 3411713, Hollywood (111D) 3411813, Pismo Beach (221B) 3512026, Oceano (221D) 3512015, Morro Bay South (247D) 3512037, Santa Cruz (387E) 3612281, Felton (408D)* 3712211, San Francisco North (466C)* 3712274
quad data info

Counties, states, regions:
Los Angeles (LAX), San Bernardino (SBD)*, Santa Cruz (SCR)*, San Francisco (SFO)*, San Luis Obispo (SLO), Sonora - Mexico (SO)?, Washington (WA)*
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Marshes and swamps (MshSw)(freshwateror brackish)/sandy, openings
blooming period May-Aug  
elevation range3 - 170 meters
Known from only two natural occurrences in Black Lake Cyn. And at Oso Flaco Lk. Threatened by vehicles, development, erosion, hydrological alterations, and non-native plants. Individuals re-introduced in Black Lake Cyn. in 1995. Introduced population in Los Osos well established as of 2003. Experimental introduction also underway in Nipomo as of 2004. Collection from Mexico needs confirmation. See Proceedings of the California Academy of Natural Sciences 3:61 (1863) for original description.
full nameArenaria paludicola Rob.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  ARPA7 Element Code  PDCAR040L0
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 Wed, Dec. 8, 2021 from

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