CNPS

CNPS Rare Plant Inventory



Taxon Details

Boechera serpenticola

serpentine rockcress

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Photo of Boechera serpenticola
©2020 Sierra Pacific Industries 		Photo of Boechera serpenticola
©2019 Steve Matson 		Photo of Boechera serpenticola
©2019 Steve Matson

Taxon Summary:

Boechera serpenticola, commonly known as serpentine rockcress, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 790 to 2100 meters. Boechera serpenticola is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

  Classification

Scientific Name:
Boechera serpenticola Windham & Al-Shehbaz
Common Name:
serpentine rockcress
Family: Brassicaceae
Element Code: PDBRA40110
USDA Plants Symbol:
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G1
State Rank:
 S1
Other Status: BLM_S; SB_CalBG/RSABG
CRPR Changes:
added to 1B.2 on 2011-05-06
Add Date: 2011-05-06
Date Edited: 2024-11-05

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: Mar-Jun
JFMAMJJASOND
Elevation:
790 - 2100 meters
2590 - 6890 feet
General Habitats:
  • Lower montane coniferous forest
  • Upper montane coniferous forest
Microhabitat Details: Serpentinite ridges
Microhabitat:
  • Serpentine
  • Talus

  Notes

Notes:
Known only from Bully Choop Mtn. and North Fork Trinity River. Similar to B. subpinnatifida. See Harvard Papers in Botany 11(1):61-88 (2006) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 0
Total EOs % of EOs
EOs with Threat Listed: 0 %
THREAT LIST:

 

  Occurrence Data from the CNDDB

Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 4
Occurrence Status:
Historical >20 Years 2
Recent <=20 Years 2
Presence:
Presumed Extant 4
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA), Trinity (TRI)
Quads: Name (Quad Code)
Bully Choop Mtn. (4012257), Dubakella Mtn. (4012342), Smoky Creek (4012332), Thurston Peaks (4012382)
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.
Regional Map

  Map

Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

CNPS Status Review: Proposed Addition to CRPR 1B.2, G1 / S1 (2011)
Species Account: Boechera serpenticola profile for potential Species of Conservation Concern evaluation (2022)

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Suggested Citation:
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 January 2025].
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