Taxon Details
Boechera rubicundula
Mt. Day rockcress
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Taxon Summary:
Boechera rubicundula, commonly known as Mt. Day rockcress, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Chaparral, growing at elevations from 1200 to 1200 meters. Boechera rubicundula is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Boechera rubicundula (Jeps.) Windham & Al-Shehbaz |
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Common Name: Mt. Day rockcress |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA40100 | |
| 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: | None |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | |
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CRPR Changes: added to 1B.1 on 2011-04-27 |
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| Add Date: | 2011-04-27 |
| Date Edited: | 2024-03-06 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-May
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Elevation:
1200 - 1200 meters 3935 - 3935 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: One Known Occurrence (OKO); known only from the type collection on Mt. Day. |
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Threats: |
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Taxonomy: Similar to B. arcuata and B. breweri ssp. breweri. Differs from B. arcuata in having spatulate to oblanceolate basal leaves, shorter fruiting pedicels with spreading trichomes, and shorter fruits; differs from B. breweri ssp. breweri in having taller stems with at least some 3-rayed trichomes, and slightly descending to horizontal fruiting pedicels with a predominance of 2-rayed trichomes. Windham and Al-Shehbaz (2007) “hypothesize that B. rubicundula is a reproductively competent, apomictic hybrid containing genomes from B. arcuata and B. breweri.” |
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| Threat List Total: | 0 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 0 | % |
| THREAT LIST: | ||
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| Total Occurrences: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 1 |
| Occurrence Status: | |||||
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| Historical >20 Years | 1 | ||||
| Recent <=20 Years | 0 | ||||
| Presence: | |||||
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| Presumed Extant | 1 | ||||
| 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 Clara (SCL) |
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Quads: Name (Quad Code) Mt. Day (3712146) |
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Notes:
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Presumed Extant
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