Species Details

Boechera hoffmannii

Hoffmann's rockcress

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Scientific Name:
Boechera hoffmannii (Munz) Al-Shehbaz
Common Name:
Hoffmann's rockcress
Family: Brassicaceae
Element Code: PDBRA060V0
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: FE (1997-07-31)
State List: None
Global Rank: G1G2
State Rank:
S1S2
Other Status: SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-08-25
Lifeform: perennial herb
Blooming Period: Feb-Apr
Elevation:
60 - 395 meters
195 - 1295 feet
General Habitat:
  • Coastal bluff scrub
  • Chaparral
  • Coastal scrub
General Micro Habitat:
Micro Habitat:
  • Rocky
  • Sandy
  • Volcanic
Notes:
Rediscovered independently in 1985 by T. Hesseldenz and S. Junak on SCZ Isl. Feral herbivore populations reduced, but still threatened by feral pigs; also possibly threatened by erosion and non-native plants. Reintroduction work on SCZ Isl. ongoing as of 1996. Recent surveys on ANA Isl. have been unsuccessful. See Rhodora 43(511):407 (1941) for taxonomic treatment, and Novon 13(4):381-391 (2003) for revised nomenclature..
Threats:
Taxonomy:
Other:
Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
0 2 1 0 0 4
Occurrence Status:
Historical >20 Years 3
Recent <=20 Years 4
Presence:
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Anacapa Island (3311983)*, Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081)
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.

Map

Presumed Extant
Counties   Quads