Taxon Report

Boechera rollei (Rollins) Al-Shehbaz

Rolle's rockcress

Print Report


©2012 Dana York

Taxon Summary

Boechera rollei, commonly known as Rolle's rockcress, is a perennial herb in the Brassicaceae that is found in California and elsewhere. It occurs within Upper montane coniferous forest, growing at elevations from 1600 to 1800 meters. Boechera rollei is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

  Classification
Scientific Name:
 Boechera rollei (Rollins) Al-Shehbaz
Common Name:
 Rolle's rockcress
Family: Brassicaceae
Element Code: PDBRA064H0
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial herb
Blooming Period: Aug Aug
Elevation: 1600-1800 (5250-5905)
General Habitats: Upper montane coniferous forest
Microhabitat: Rocky, Slopes
Microhabitat Details: Peridotite rocks on sparsely forested slopes

Conservation Status
CA Rare Plant Rank: 1B.1
Global Rank: G1
State Rank:
 S1
State List: None
Fed List: None
Other Status: SB_CalBG/RSABG
CRPR Changes:
  • added to 1B.1 on 2011-06-01

Occurrence Data from the CNDDB
Total Occurrences: 1
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 1

Location
California Endemic:  False
California Counties and Islands: Name (Code)
Siskiyou (SIS)
Quads: Name (Quad Code)
Kangaroo Mtn. (4112382)

Threat List Data from the CNDDB

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

 

Notes
Known from only one occurrence on the divide between the Applegate and Klamath Rivers. See Harvard Papers in Botany 4:43-48 (1993) for original description and Novon 13(4):381-391 (2003) for taxonomic treatment.
Threats:
Taxonomy:

Selected References

Proposed Addition to CRPR 1B.1, G1 / S1 (2011)
Boechera rollei account for potential Species of Conservation Concern evaluation (2021)
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 19 November 2025].