Taxon Details
Boechera hoffmannii
Hoffmann's rockcress
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© 2014 John Game |
© 2014 Steve Matson |
© 2014 Steve Matson |
Taxon Summary:
Boechera hoffmannii, commonly known as Hoffmann's rockcress, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Chaparral, Coastal bluff scrub, and Coastal scrub, growing at elevations from 60 to 395 meters. Boechera hoffmannii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
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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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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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: | |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2026-05-18 |
| 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. Population extent and size increasing since nonnative grazing mammals and feral pigs removed from the island. |
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Threats: Possibly threatened by erosion and non-native plants. Formerly threatened by feral herbivores. |
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Taxonomy: See Rhodora 43(511):407 (1941) for taxonomic treatment and Novon 13(4):381-391 (2003) for revised nomenclature. |
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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 | 5 | ||||
| Recent <=20 Years | 2 | ||||
| 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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