CNPS Inventory Plant Detail

Boechera shockleyi

Common Name:	Shockley's rockcress
Family:	Brassicaceae
Synonyms:	Arabis shockleyi
Element Code:	PDBRA061V0
Full Name:	Boechera shockleyi (Munz) Dorn
USDA PLANTS Symbol:	ARSH

Biology
Lifeform: perennial herb Blooming Period: May - June Habitat: • Pinyon and juniper woodland (carbonate or quartzite, rocky or gravelly)

Rarity Status
CA Rare Plant Rank: 2.2 Rare, threatened, or endangered in California, but more common elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G3 G3: Vulnerable.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 57
Element Occurrence Ranks:

A B C D X U

4 13 3 0 0 37

Population Status:

Historic >20 yrs	Recent <=20 yrs
19	38

Presence:

Present Extant	Possibly Extirpated	Extirpated
57	0	0

Notes
Threatened by mining and vehicles. See Bulletin of the Southern California Academy of Sciences 31(2):61 (1932) for original description, and Rhodora 43(511):457 (1941) for taxonomic treatment. 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: 2012-04-25

Location

Elevation: 875 - 2310 meters

California Endemic: no

States: California, Nevada, Utah

California Counties and Islands: name (code)
Inyo (INY), Mono (MNO), San Bernardino (SBD)

Quads: name (DWR code) USGS code
Rimrock (104A) 34116B5, Onyx Peak (104B) 34116B6, Rattlesnake Canyon (130C) 34116C6, Lucerne Valley (131B) 34116D8, Fawnskin (131C) 34116C8, Big Bear City (131D) 34116C7, Butler Peak (132D) 34117C1, Panamint Butte (326A) 36117D3, Last Chance Range SE (390D) 37117A5, Waucoba Spring (391C) 37117A8, Cowhorn Valley (392A) 37118B1, Tinemaha Reservoir (392C) 37118A2, Waucoba Mtn. (392D) 37118A1, Last Chance Mtn. (410C) 37117C6, Westgard Pass (412C) 37118C2, Dyer (431A) 37118F1

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

200

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 .

-117.25,36.375