Species Details
Rorippa subumbellata
Tahoe yellow cress
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Scientific Name: Rorippa subumbellata Roll. |
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Common Name: Tahoe yellow cress |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA270M0 | |
| USDA Plants Symbol: | ROSU2 | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | CE (1982-04-01) |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_BerrySB; SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-06-08 |
| Lifeform: perennial rhizomatous herb | ||||||||||||||
Blooming Period: May-Sep
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Elevation:
1890 - 1905 meters 6200 - 6250 feet |
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General Habitats:
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| Microhabitat Details: decomposed granitic beaches | ||||||||||||||
Microhabitat:
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Notes: Known in CA only from Lake Tahoe; many historical occurrences extirpated. Seriously threatened by development, recreation, foot traffic, and inundation; recovery work underway. State-listed as Critically Endangered in NV. Previously a candidate for federal listing. See Contributions from the Dudley Herbarium 3:177 (1941) for original description. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 11 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 20 | 61 % |
| THREAT LIST: | ||
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| Recreational use (non-ORV) | 17 | 51% |
| Foot traffic/trampling | 12 | 36% |
| Altered flood/tidal/hydrologic regime | 8 | 24% |
| Development | 6 | 18% |
| Erosion/runoff | 4 | 12% |
| Other | 3 | 9% |
| Vandalism/dumping/litter | 2 | 6% |
| Grazing | 2 | 6% |
| Non-native plant impacts | 2 | 6% |
| ORV activity | 1 | 3% |
| Waterway bank protection/maintenance | 1 | 3% |
| Total Occurrences: | 33 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 7 | 5 | 0 | 3 | 18 |
| Occurrence Status: | |||||
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| Historical >20 Years | 5 | ||||
| Recent <=20 Years | 28 | ||||
| Presence: | |||||
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| Presumed Extant | 30 | ||||
| Possibly Extirpated | 2 | ||||
| Presumed Extirpated | 1 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA), Nevada (NV) |
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California Counties and Islands: Name (Code) El Dorado (ELD), Nevada (NEV)*, Placer (PLA) |
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Quads: Name (Quad Code) Emerald Bay (3812081), Homewood (3912012), Kings Beach (3912021)*, Meeks Bay (3912011), South Lake Tahoe (3811988), Tahoe City (3912022), Truckee (3912032)* |
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Notes:
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Presumed Extant
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