CNPS Inventory Plant Detail

Boechera dispar

Common Name:	pinyon rockcress
Family:	Brassicaceae
Synonyms:	Arabis dispar
Element Code:	PDBRA060F0
Full Name:	Boechera dispar (M.E. Jones) Al-Shehbaz
USDA PLANTS Symbol:	ARDI

Biology
Lifeform: perennial herb Blooming Period: March - June Habitat: granitic, gravelly. • Joshua tree woodland • Mojavean desert scrub • Pinyon and juniper woodland

Rarity Status
CA Rare Plant Rank: 2.3 Rare, threatened, or endangered in California, but more common elsewhere .3: Not very endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.3 S2: Imperiled. .3: No current threats known. Global Rank: G3 G3: Vulnerable.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 62
Element Occurrence Ranks:

A B C D X U

1 7 4 0 0 50

Population Status:

Historic >20 yrs	Recent <=20 yrs
21	41

Presence:

Present Extant	Possibly Extirpated	Extirpated
62	0	0

Notes
Rare in SBD Co. Threatened by mining, non-native plants, recreational activities, road construction, and vehicles. See Contributions to Western Botany 8:41 (1898) 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: 1994-01-01 Last Update: 2012-04-25

Location

Elevation: 1200 - 2540 meters

California Endemic: no

States: California, Nevada

California Counties and Islands: name (code)
Inyo (INY), Kern (KRN), Los Angeles (LAX), Mono (MNO), Riverside (RIV), San Bernardino (SBD), Tulare (TUL)

Quads: name (DWR code) USGS code
Indian Cove (102C) 34116A2, Yucca Valley North (103B) 34116B4, Joshua Tree South (103D) 34116A3, Onyx Peak (104B) 34116B6, Moonridge (105A) 34116B7, Rattlesnake Canyon (130C) 34116C6, Big Bear City (131D) 34116C7, Fifteenmile Valley (132A) 34117D1, Apple Valley South (132B) 34117D2, Butler Peak (132D) 34117C1, Mount San Antonio (134C) 34117C6, Rockhouse Basin (283B) 35118H2, White Dome (283C) 35118G2, Telescope Peak (302A) 36117B1, Ballarat (302C) 36117A2, Panamint (302D) 36117A1, China Gardens (304A) 36117B5, Coso Peak (304B) 36117B6, Panamint Butte (326A) 36117D3, Jackass Canyon (349D) 36117E5, New York Butte (350B) 36117F8, Mazourka Peak (372A) 36118H1, Blackrock (372B) 36118H2, Kearsarge Peak (373D) 36118G3, Uhlmeyer Spring (392B) 37118B2, Tinemaha Reservoir (392C) 37118A2, Big Pine (393A) 37118B3, Chocolate Mtn. (411B) 37117D8, Westgard Pass (412C) 37118C2, Bishop (413C) 37118C4, Hammil Valley (432B) 37118F4, Toms Place (433C) 37118E6

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

1562

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 .

-117.5,36.125