Species Details

Nasturtium gambelii

Gambel's water cress

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CA Rare Plant Rank: 1B.1
Fed List: FE (1993-08-03)
State List: CT (1990-01-01)
Global Rank: G1
State Rank:
Other Status: SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2021-05-26
Lifeform: perennial rhizomatous herb
Blooming Period: Apr-Oct
5 - 330 meters
15 - 1085 feet
General Habitat:
  • Marshes and swamps (brackish, freshwater)
General Micro Habitat:
Micro Habitat:
Nearly extinct in U.S.; known in CA from only four occurrences. The historical report from SDG Co. likely constitutes a misidentification. Black Lake Cyn. and Little Oso Flaco Lake populations not seen in 1998, possibly extirpated (Information in the preceding sentences may need to be altered pending verification of the known occurrences of this taxon). Seriously threatened by habitat loss, erosion, and Eucalyptus that may be altering hydrology at Black Lake Cyn. Recovery plan prepared by USFWS in 1994. See Proceedings of the American Academy of Arts and Sciences 11:147 (1876) for original description, and Novon 8(2): 124-126 (1998) for revised nomenclature.
Total Occurrences: 13
Element Occurrence Ranks:
0 1 0 0 11 1
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 2
Presumed Extant 2
Possibly Extirpated 4
Presumed Extirpated 7
California Endemic:
California Island:
States: Name (Code)
Baja California (BA), California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), Orange (ORA), San Bernardino (SBD)*, San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Anaheim (3311778), Casmalia (3412075), Hollywood (3411813), Newport Beach (3311768), Oceano (3512015), Orange (3311777), Orcutt (3412074), San Bernardino South (3411713)*, Santa Barbara (3411946), Seal Beach (3311861), Tustin (3311767)
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