CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record trifolium_hydrophilum - Thu, Dec. 2, 2021, 08:11 ET b
Trifolium hydrophilum
common namesaline clover
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life formannual herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (41):
San Luis Obispo (246C) 3512036, Monterey (366C) 3612158, San Felipe (385B) 3612184, Hollister (385C) 3612174, Chittenden (386A) 3612185, Prunedale (386C) 3612176, Moss Landing (387D) 3612177, Milpitas (427B) 3712148, San Jose West (427C) 3712138, Altamont (445B) 3712166, Livermore (446A) 3712167, Dublin (446B) 3712168, Newark (447D) 3712251, San Mateo (448D) 3712253, Stockton West (462A) 3712183, Oakland East (465C) 3712272, Richmond (466A) 3712283, San Quentin (466B) 3712284, Oakland West (466D) 3712273, Denverton (481B) 3812128, Fairfield South (482A) 3812221, Cordelia (482B) 3812222, Benicia (482C) 3812212, Vine Hill (482D) 3812211, Cuttings Wharf (483A) 3812223, Sears Point (483B) 3812224, Florin (496B) 3812144, Bruceville (496C) 3812134, Clarksburg (497A) 3812145, Saxon (497B) 3812146, Liberty Island (497C) 3812136, Elmira (498C) 3812138, Fairfield North (499D) 3812231, Napa (500D)* 3812233, Santa Rosa (501B) 3812246, Cotati (501C) 3812236, Sebastopol (502A)* 3812247, Camp Meeker (502B) 3812248, Grays Bend (513B) 3812166, Calistoga (517D) 3812255, Middletown (533D) 3812275
quad data info

Counties, states, regions:
Alameda (ALA), Contra Costa (CCA), Colusa (COL)?, Lake (LAK), Monterey (MNT), Napa (NAP), Sacramento (SAC), San Benito (SBT), Santa Clara (SCL), Santa Cruz (SCR), San Joaquin (SJQ), San Luis Obispo (SLO), San Mateo (SMT), Solano (SOL), Sonoma (SON), Yolo (YOL)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Marshes and swamps (MshSw)
•Valley and foothill grassland (VFGrs)(mesic, alkaline)
•Vernal pools (VnPls)
blooming period Apr-Jun  
elevation range0 - 300 meters
Many sites likely extirpated; need current information on rarity and endangerment. Need quads for COL Co. Threatened by development, trampling, road construction, and vehicles. See Manual of the Botany of the Region of San Francisco Bay, p.100 (1894) for original description, and Brittonia 32(1):55 (1980) for revised nomenclature.
full nameTrifolium hydrophilum Greene
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDFAB400R5
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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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 Thu, Dec. 2, 2021 from

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