Taxon Report
Ivesia longibracteata B. ErtterCastle Crags ivesia |
 ©2011 Shannon Henke |
Taxon Summary
Ivesia longibracteata, commonly known as Castle Crags ivesia, is a perennial herb in the Rosaceae that is found only in California. It occurs within Lower montane coniferous forest (granitic, and rocky), growing at elevations from 1200 to 1400 meters. Ivesia longibracteata 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: |
Ivesia longibracteata B. Ertter |
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Common Name: |
Castle Crags ivesia |
| Family: | Rosaceae |
| Element Code: | PDROS0X0U0 |
| USDA Plants Symbol: | IVLO |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Jun | Jun |
| Elevation: | 1200-1400 (3935-4595) |
| General Habitats: | Lower montane coniferous forest |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G1 |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_BerrySB; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 5 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 5 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Shasta (SHA), Siskiyou (SIS) | |
| Quads: Name (Quad Code) | |
| Dunsmuir (4112223) | |
Threat List Data from the CNDDB
| Threat List Total: | 1 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 20 % | |
| Recreational use (non-ORV) | 1 | 20% |
Selected References
| USFS Potential Species of Conservation Concern Profile |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 21 February 2025].