Taxon Report
Boechera tiehmii (Rollins) Al-ShehbazTiehm's rockcress |
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Taxon Summary
Boechera tiehmii, commonly known as Tiehm's rockcress, is a perennial herb in the Brassicaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, growing at elevations from 2970 to 3590 meters. Boechera tiehmii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.Classification
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Scientific Name: |
Boechera tiehmii (Rollins) Al-Shehbaz |
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Common Name: |
Tiehm's rockcress |
| Family: | Brassicaceae |
| Element Code: | PDBRA06280 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Jul-Aug | Jul-Aug |
| Elevation: | 2970-3590 (9745-11780) |
| General Habitats: | Alpine boulder and rock field |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 9 |
| Element Occurrence Ranks: | |
| Excellent (A) | 9 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Mono (MNO) | |
| Quads: Name (Quad Code) | |
| Dunderberg Peak (3811913), Mount Dana (3711982), Tioga Pass (3711983) | |
Threat List Data from the CNDDB
| Threat List Total: | 1 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 22 % | |
| Road/trail construction/maint. | 2 | 22% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].