CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-14nov 11-15-14
Status: record boechera_johnstonii - Sun, Nov. 23, 2014 03:27 ET c
Boechera johnstonii
common nameJohnston's rockcress
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familyBrassicaceae
life formperennial herb
CA Rare Plant Rank
List 1B.2
CA-Endemic
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S1      ranking system key
global rank
G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
CA state listingNone  
federal listingNone  
where found
(12/2) v7 maps currently unavailable - use link below for v8 details and maps

Topographic quads (5):
Palm View Peak (066A) 3311665, Idyllwild (066B) 3311666, Anza (066C) 3311656, Butterfly Peak (066D) 3311655, San Jacinto Peak (083C) 3311676
quad data info

Counties, states, regions:
Riverside (RIV)
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CNPS habitats•Chaparral (Chprl)
•Lower montane coniferous forest (LCFrs)/often on eroded clay
blooming period Feb-Jun  
elevation range1350 - 2150 meters
notes
Known only from the southern San Jacinto Mtns. Threatened by recreational and residential development in Garner Valley. Also threatened by grazing and trampling, and possibly threatened by vegetation/fuels management projects. Boechera hirshbergiae is treated as a synonym of this plant in TJM 2; see Harvard Papers in Botany 11(1):61-88 (2006) for relative taxonomic treatment. See Bulletin of the Southern California Academy of Sciences 31:62-63 (1932) for original description, Rhodora 43(511):467-468 (1941) for taxonomic treatment, and Novon 13(4):381-391 (2003) for revised nomenclature.
full nameBoechera johnstonii (Munz) Al-Shehbaz
Version 8    INVENTORY VERSION 8 - Details for this taxon, including GIS and other links

Additional information:
standard acronym   Element Code  PDBRA060Y0
Jepson Online Jepson Interchange  Jepson Manual and other resources
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Suggested citation: California Native Plant Society (CNPS). 2014. Inventory of Rare and Endangered Plants (online edition, v7-14nov). California Native Plant Society. Sacramento, CA. Accessed on Sun, Nov. 23, 2014 from http://www.cnps.org/inventory

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