Taxon Report
Boechera hirshbergiae (S. Boyd) Al-ShehbazHirshberg's rockcress |
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Taxon Summary
Boechera hirshbergiae, commonly known as Hirshberg's rockcress, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Pebble (Pavement) plain, growing at elevations from 1400 to 1415 meters. Boechera hirshbergiae is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Boechera hirshbergiae (S. Boyd) Al-Shehbaz |
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Common Name: |
Hirshberg's rockcress |
| Family: | Brassicaceae |
| Element Code: | PDBRA064D0 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Mar-May | Mar-May |
| Elevation: | 1400-1415 (4595-4645) |
| General Habitats: | Pebble (Pavement) plain |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G1Q |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CRES |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 3 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 3 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Cuyamaca Peak (3211685), Julian (3311615) | |
Threat List Data from the CNDDB
| Threat List Total: | 1 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 33 % | |
| Grazing | 1 | 33% |
Notes
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Known only from near Cuyamaca Lake. Threatened by grazing. Not in The Jepson Manual |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 1 November 2025].