CNPS

CNPS Rare Plant Inventory



Species Details

Boechera koehleri

Koehler's stipitate rockcress

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Photo of Boechera koehleri
©2019 Dana York 		Photo of Boechera koehleri
© 2021 Scot Loring 		Photo of Boechera koehleri
©2016 Keir Morse

  Classification

Scientific Name:
Boechera koehleri (Howell) Al-Shehbaz
Common Name:
Koehler's stipitate rockcress
Family: Brassicaceae
Element Code: PDBRA060Z0
USDA Plants Symbol:
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.3
Fed List: None
State List: None
Global Rank: G3G4
State Rank:
 S3
Other Status: USFS_S
CRPR Changes:
Add Date: 1988-01-01
Date Edited: 2023-05-02

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: (Mar)Apr-Jul
JFMAMJJASOND
Elevation:
155 - 1660 meters
510 - 5445 feet
General Habitats:
  • Chaparral
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Rocky
  • Serpentine

  Notes

Notes:
Threats:
On watch list in OR.
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 8 28 %
THREAT LIST:
Erosion/runoff 3 10%
Road/trail construction/maint. 3 10%
Other 2 6%
Foot traffic/trampling 2 6%
ORV activity 1 3%

  Occurrence Data from the CNDDB

Total Occurrences: 29
Element Occurrence Ranks:
A B C D X U
4 6 0 0 0 19
Occurrence Status:
Historical >20 Years 19
Recent <=20 Years 10
Presence:
Presumed Extant 29
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS)
Quads: Name (Quad Code)
Broken Rib Mtn. (4112386), Devils Punchbowl (4112376), Figurehead Mtn. (4112383), Gasquet (4112378), High Divide (4112481), High Plateau Mtn. (4112388), Hiouchi (4112471), Hurdygurdy Butte (4112377), Kangaroo Mtn. (4112382), Preston Peak (4112375), Shelly Creek Ridge (4112387), Ship Mountain (4112367)
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

Revised Nomenclature: Novon 13(4):381-391 (2003)
Taxonomic Treatment: Rhodora 43(511):426 (1941)
Species Account: Boechera koehleri profile for potential Species of Conservation Concern evaluation (2018)

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Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].
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