CNPS Inventory Plant Detail

Rorippa subumbellata

Common Name:	Tahoe yellow cress
Family:	Brassicaceae
Synonyms:
Element Code:	PDBRA270M0
Full Name:	Rorippa subumbellata Roll.
USDA PLANTS Symbol:	ROSU2

Biology
Lifeform: perennial rhizomatous herb Blooming Period: May - September Habitat: decomposed granitic beaches. • Lower montane coniferous forest • Meadows and seeps

Rarity Status
CA Rare Plant Rank: 1B.1 Rare, threatened, or endangered in California and elsewhere .1: Seriously endangered in California Federal Listing Status: FC Species of Concern State Listing Status: CE Endangered (04/82) State Rank: S1 S1: Critically Imperiled. Global Rank: G1 G1: Critically Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 29
Element Occurrence Ranks:

A B C D X U

0 7 3 0 12 7

Population Status:

Historic >20 yrs	Recent <=20 yrs
10	19

Presence:

Present Extant	Possibly Extirpated	Extirpated
17	11	1

Notes

Known in CA only from Lake Tahoe; many historical occurrences extirpated. Seriously threatened by development, recreation, trampling, and inundation; recovery work underway. State-listed as Critically Endangered in NV. See Contributions from the Dudley Herbarium 3:177 (1941) for original description.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2010-03-15

Location

Elevation: 1895 - 1900 meters

California Endemic: no

States: California, Nevada

California Counties and Islands: name (code)
El Dorado (ELD), Nevada (NEV) *, Placer (PLA)

Quads: name (DWR code) USGS code
South Lake Tahoe (522B) 38119H8, Emerald Bay (523A) 38120H1, Kings Beach (538A)* 39120B1, Tahoe City (538B) 39120B2, Homewood (538C) 39120A2, Meeks Bay (538D) 39120A1, Truckee (554C)* 39120C2

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

1433

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

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