Species Details
Boechera hoffmannii
Hoffmann's rockcress
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Scientific Name: Boechera hoffmannii (Munz) Al-Shehbaz |
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Common Name: Hoffmann's rockcress |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA060V0 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FE (1997-07-31) |
| State List: | None |
| Global Rank: | G1G2 |
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State Rank: |
S1S2 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2021-08-25 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Feb-Apr
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Elevation:
60 - 395 meters 195 - 1295 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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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.. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 3 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 3 | 43 % |
| THREAT LIST: | ||
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| Erosion/runoff | 3 | 42% |
| Grazing | 1 | 14% |
| Non-native plant impacts | 1 | 14% |
| Total Occurrences: | 7 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 2 | 1 | 0 | 0 | 4 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 4 | ||||
| Presence: | |||||
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| Presumed Extant | 7 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Santa Barbara (SBA), Ventura (VEN) |
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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) |
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Notes:
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Presumed Extant
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