CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record boechera_constancei - Mon, Nov. 29, 2021 07:04 ET c
Boechera constancei
common nameConstance's rockcress
CalPhotos image
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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 listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (13):
La Porte (573B) 3912068, Spring Garden (589A) 3912087, Quincy (589B) 3912088, Onion Valley (589C) 3912078, Meadow Valley (590A) 3912181, Bucks Lake (590B) 3912182, Dogwood Peak (590D) 3912171, Greenville (605B) 4012028, Crescent Mills (605C) 4012018, Canyondam (606A) 4012121, Caribou (606C) 4012112, Twain (606D) 4012111, Belden (607D) 4012113
quad data info

Counties, states, regions:
Plumas (PLU), Sierra (SIE)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Lower montane coniferous forest (LCFrs)
•Upper montane coniferous forest (UCFrs)/serpentinite, rocky
blooming period May-Jul  
elevation range975 - 2025 meters
Threatened by road widening, logging, mining, and urbanization. Possibly threatened by vehicles. See Contributions from the Gray Herbarium 201:4-6 (1971) for original description.
full nameBoechera constancei (Rollins) Al-Shehbaz
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDBRA06090
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Mon, Nov. 29, 2021 from

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