CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-14aug 8-06-14
Status: record arabis_mcdonaldiana - Wed, Aug. 27, 2014 14:56 ET c
Arabis mcdonaldiana
common nameMcDonald's rockcress
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familyBrassicaceae
life formperennial herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
CA state listingEndangered  07/79
federal listingEndangered  09/28/78
where found
(12/2) v7 maps currently unavailable - use link below for v8 details and maps

Topographic quads (9):
Noble Butte (600B) 3912386, Polar Bear Mountain (738A) 4112385, Broken Rib Mountain (738B) 4112386, Devils Punchbowl (738C) 4112376, Preston Peak (738D) 4112375, Shelly Creek Ridge (739A) 4112387, High Plateau Mountain (739B) 4112388, Gasquet (739C) 4112378, High Divide (740A) 4112481
quad data info

Counties, states, regions:
Del Norte (DNT), Mendocino (MEN), Siskiyou (SIS), Trinity (TRI), Oregon (OR)
counties map
CNDDB Quick Viewer
Web application for exploring the CNDDB elements reported at the quad level.
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A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Lower montane coniferous forest (LCFrs)
•Upper montane coniferous forest (UCFrs)/serpentinite
blooming period May-Jul  
elevation range135 - 1800 meters
notes
Potentially threatened by mining. Endangered in OR, where plant needs taxonomic study. Includes A. serpentinicola. See Rhodora 43(511):350 (1941) for taxonomic treatment, and Contributions from the Gray Herbarium 204:149-154 (1973) for taxonomic information.
full nameArabis mcdonaldiana Eastw.
Version 8    INVENTORY VERSION 8 - Details for this taxon, including GIS and other links

Additional information:
standard acronym   Element Code  PDBRA06150
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, v7-14aug). California Native Plant Society. Sacramento, CA. Accessed on Wed, Aug. 27, 2014 from http://www.cnps.org/inventory

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