Taxon Report
Boechera constancei (Rollins) Al-ShehbazConstance's rockcress |
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Classification
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Scientific Name: |
Boechera constancei (Rollins) Al-Shehbaz |
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Common Name: |
Constance's rockcress |
| Family: | Brassicaceae |
| Element Code: | PDBRA06090 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jul | May-Jul |
| Elevation: | 975-2025 (3200-6645) |
| General Habitats: | Chaparral, Lower montane coniferous forest, Upper montane coniferous forest |
| Microhabitat: | Rocky, Serpentine |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 59 |
| Element Occurrence Ranks: | |
| Excellent (A) | 4 |
| Good (B) | 20 |
| Fair (C) | 3 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 31 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Plumas (PLU), Sierra (SIE) | |
| Quads: Name (Quad Code) | |
| Belden (4012113), Bucks Lake (3912182), Canyondam (4012121), Caribou (4012112), Crescent Mills (4012018), Greenville (4012028), La Porte (3912068), Meadow Valley (3912181), Onion Valley (3912078), Quincy (3912088), Spring Garden (3912087), Twain (4012111) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 40 | 68 % | |
| Logging | 29 | 49% |
| Road/trail construction/maint. | 12 | 20% |
| Mining | 7 | 11% |
| Other | 5 | 8% |
| Wood cutting or brush clearing | 3 | 5% |
| ORV activity | 3 | 5% |
| Improper burning regime | 2 | 3% |
| Biocides | 1 | 1% |
| Disease | 1 | 1% |
| Erosion/runoff | 1 | 1% |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].