Taxon Details
Arabis rigidissima var. rigidissima
Trinity Mountains rockcress
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©2015 Dana York |
©2015 Dana York |
Taxon Summary:
Arabis rigidissima var. rigidissima, commonly known as Trinity Mountains rockcress, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Upper montane coniferous forest (gravelly, and rocky), growing at elevations from 1190 to 2200 meters. Arabis rigidissima var. rigidissima is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.|
Scientific Name: Arabis rigidissima Rollins var. rigidissima |
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Common Name: Trinity Mountains rockcress |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA061R2 | |
| USDA Plants Symbol: | ARRIR | |
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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.3 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G3T3 |
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State Rank: |
S3 |
| Other Status: | |
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CRPR Changes: changed from 4.3 to 1B.3 on 2012-05-07 |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2023-05-02 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Jun-Aug
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Elevation:
1190 - 2200 meters 3905 - 7220 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Similar to Boechera suffrutescens. See Boechera rigidissima in TJM 2; varieties not treated. See Rhodora 43(511):380-381 (1941) for original description, and Novon 13(4):381-391 (2003) for revised nomenclature. |
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Threats: |
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Taxonomy: Similar to Boechera suffrutescens |
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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: | 6 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 0 | 0 | 0 | 5 |
| Occurrence Status: | |||||
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| Historical >20 Years | 4 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 6 | ||||
| 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) Siskiyou (SIS), Trinity (TRI) |
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Quads: Name (Quad Code) Cecil Lake (4112312), Dees Peak (4112313), Eaton Peak (4112238), English Peak (4112342), Thurston Peaks (4012382), Whisky Bill Peak (4112215) |
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Notes:
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Presumed Extant
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