Status: record arabis_rigidissima_var._rigidissima - Thu, May. 23, 2013 10:18 ET c

Arabis rigidissima var. rigidissima
common name	Trinity Mountains rockcress	CalPhotos image No image is currently registered in our database. Users can help us by checking CalPhotos for recent additions, and then contacting us if any are found.
family	Brassicaceae
life form	perennial herb
CNPS List	List 1B.3 CA-Endemic LIST 1B: Rare, threatened, or endangered in California and elsewhere.      0.3: Not very endangered in California
state rank	S2      ranking system key
global rank	G3T2      ranking system key
	Where did the "RED" code go? Where did the "RED" code go? We've simplified our rating system. Read about it here. Under the old system, this plant was "1-1-3" (v6.05d, 9/05). Rarity 1: Rare, but found in sufficient numbers and distributed widely enough that the potential for extinction is low at this time. Endangerment 1: Not very endangered in California. Distribution 3: Endemic to California.
CA state listing	None
federal listing	None

where found	(12/2) v7 maps currently unavailable - use link below for v8 details and maps Topographic quads (5): Thurston Peaks (668B) 4012382, Whisky Bill Peak (683D) 4112215, Dees Peak (686D) 4112313, Eaton Peak (701C) 4112238, English Peak (702B) 4112342 quad data info Quad numbers in parentheses are from the CA Department of Water Resources. The 7-digit numbers are the USGS equivalent. Red marks signify uncertainty[?] or extirpation[*]. See quad list above. A complete key is on the Index by Topo Quad page. Marks are smaller than the quads they represent, and are generally positioned near the center of the quad. In some coastal quads, this will place the mark offshore. Quad boundaries do not coincide with county lines. To confirm county location, refer to the county list below. Counties, states, regions: Siskiyou (SIS), Trinity (TRI) counties map Quad Mark Identifier CNDDB Quick Viewer Web application for exploring the CNDDB elements reported at the quad level. (broadband recommended) A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats	•Upper montane coniferous forest (UCFrs)(gravelly or rocky)
blooming period	Jun-Aug
elevation range	1270 - 2200 meters
notes	Similar to Boechera suffrutescens. See Boechera rigidissima in TJM 2; varieties not treated. See Rhodora 43(511):380-381 (1941) for original description, and Novon 13(4):381-391 (2003) for revised nomenclature.
full name	Arabis rigidissima Rollins var. rigidissima
	INVENTORY VERSION 8 - Details for this taxon, including GIS and other links
	Additional information:
	standard acronym  ARRIR Element Code  PDBRA061R2
CalFlora	this taxon    related taxa
Jepson Online	Jepson Manual and other resources
Google search	CNPS website    entire web

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Suggested citation: California Native Plant Society (CNPS). 2013. Inventory of Rare and Endangered Plants (online edition, v7-13may). California Native Plant Society. Sacramento, CA. Accessed on Thu, May. 23, 2013 from http://www.cnps.org/inventory