Taxon Details
Nasturtium gambelii
Gambel's water cress
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Taxon Summary:
Nasturtium gambelii, commonly known as Gambel's water cress, is a perennial rhizomatous herb in the Brassicaceae that is found in California and elsewhere. It occurs within Marshes and swamps (brackish, and freshwater), growing at elevations from 5 to 330 meters. Nasturtium gambelii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Nasturtium gambelii (S. Watson) O.E. Schulz |
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Common Name: Gambel's water cress |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA270V0 | |
| USDA Plants Symbol: | NAGA | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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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 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2023-11-08 |
| Lifeform: perennial rhizomatous herb | ||||||||||||||
Blooming Period: Apr-Oct
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Elevation:
5 - 330 meters 15 - 1085 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Nearly extinct in U.S. 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). 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. |
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Threats: Seriously threatened by habitat loss, erosion, and Eucalyptus that may be altering hydrology at Black Lake Cyn. |
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Taxonomy: |
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| Threat List Total: | 12 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 12 | 92 % |
| THREAT LIST: | ||
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| Development | 8 | 61% |
| Altered flood/tidal/hydrologic regime | 3 | 23% |
| Groundwater pumping | 3 | 23% |
| Hybridization | 3 | 23% |
| Non-native plant impacts | 3 | 23% |
| Agriculture | 2 | 15% |
| Other | 2 | 15% |
| Surface water diversion | 2 | 15% |
| Vandalism/dumping/litter | 1 | 7% |
| Recreational use (non-ORV) | 1 | 7% |
| Foot traffic/trampling | 1 | 7% |
| ORV activity | 1 | 7% |
| Total Occurrences: | 13 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 0 | 0 | 11 | 1 |
| Occurrence Status: | |||||
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| Historical >20 Years | 11 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 2 | ||||
| Possibly Extirpated | 4 | ||||
| Presumed Extirpated | 7 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Baja California (BA), California (CA) |
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California Counties and Islands: Name (Code) Los Angeles (LAX), Orange (ORA), San Bernardino (SBD)*, San Luis Obispo (SLO), Santa Barbara (SBA) |
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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) |
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Notes:
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Presumed Extant
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