Species Details

Boechera dispar

pinyon rockcress

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Scientific Name:
Boechera dispar (M.E. Jones) Al-Shehbaz
Common Name:
pinyon rockcress
Family: Brassicaceae
Element Code: PDBRA060F0
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 2B.3
Fed List: None
State List: None
Global Rank: G3
State Rank:
S3
Other Status: SB_CalBG/RSABG
CRPR Changes:
changed from 2.3 to 2B.3 on 2013-06-12
Add Date: 1994-01-01
Date Edited: 2021-08-25
Lifeform: perennial herb
Blooming Period: Mar-Jun
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Elevation:
1200 - 2540 meters
3935 - 8335 feet
General Habitats:
  • Joshua tree "woodland"
  • Mojavean desert scrub
  • Pinyon and juniper woodland
Microhabitat Details:
Microhabitat:
  • Granitic
  • Gravelly
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.
Threats:
Taxonomy:
Threat List Total: 10
Total EOs % of EOs
EOs with Threat Listed: 33 34 %
THREAT LIST:
ORV activity 18 18%
Non-native plant impacts 9 9%
Grazing 8 8%
Foot traffic/trampling 6 6%
Road/trail construction/maint. 6 6%
Total Occurrences: 97
Element Occurrence Ranks:
A B C D X U
1 7 5 0 0 84
Occurrence Status:
Historical >20 Years 32
Recent <=20 Years 65
Presence:
Presumed Extant 97
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO), Riverside (RIV), San Bernardino (SBD), Tulare (TUL)
Quads: Name (Quad Code)
Apple Valley South (3411742), Ballarat (3611712), Benton (3711874), Big Bear City (3411637), Big Pine (3711823), Bighorn Canyon (3411635), Bishop (3711834), Blackrock (3611882), Butler Peak (3411731), Cannell Peak (3511873), Casa Diablo Mtn. (3711855), China Gardens (3611725), Chocolate Mtn. (3711748), Coso Peak (3611726), Fish Slough (3711844), Grand View Mine (3411657), Hammil Valley (3711864), Indian Cove (3411612), Jackass Canyon (3611755), Joshua Tree South (3411613), Kearsarge Peak (3611873), Mazourka Peak (3611881), Moonridge (3411627), New York Butte (3611768), Onyx Peak (3411626), Panamint (3611711), Panamint Butte (3611743), Rattlesnake Canyon (3411636), Rimrock (3411625), Rockhouse Basin (3511882), Telescope Peak (3611721), Tinemaha Reservoir (3711812), Toms Place (3711856), Uhlmeyer Spring (3711822), Westgard Pass (3711832), White Dome (3511872), Yucca Valley North (3411624)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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