Taxon Report
Boechera hoffmannii (Munz) Al-ShehbazHoffmann's rockcress |
|
Classification
|
Scientific Name: |
Boechera hoffmannii (Munz) Al-Shehbaz |
|
Common Name: |
Hoffmann's rockcress |
| Family: | Brassicaceae |
| Element Code: | PDBRA060V0 |
| USDA Plants Symbol: | |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Feb-Apr | Feb-Apr |
| Elevation: | 60-395 (195-1295) |
| General Habitats: | Chaparral, Coastal bluff scrub, Coastal scrub |
| Microhabitat: | Rocky, Sandy, Volcanic |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1G2 |
|
State Rank: |
S1S2 |
| State List: | None |
| Fed List: | FE |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 7 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 2 |
| Fair (C) | 1 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 4 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Santa Barbara (SBA), Ventura (VEN) | |
| Quads: Name (Quad Code) | |
| Anacapa Island (3311983)*, Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081) | |
Threat List Data from the CNDDB
| Threat List Total: | 3 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 3 | 43 % | |
| Erosion/runoff | 3 | 42% |
| Grazing | 1 | 14% |
| Non-native plant impacts | 1 | 14% |
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: |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 December 2024].