Taxon Report
Horkelia truncata Rydb.Ramona horkelia |
 © 2008 Andrew Borcher |
Taxon Summary
Horkelia truncata, commonly known as Ramona horkelia, is a perennial herb in the Rosaceae that is found in California and elsewhere. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 400 to 1300 meters. Horkelia truncata 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: |
Horkelia truncata Rydb. |
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Common Name: |
Ramona horkelia |
| Family: | Rosaceae |
| Element Code: | PDROS0W0G0 |
| USDA Plants Symbol: | HOTR2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jun | May-Jun |
| Elevation: | 400-1300 (1310-4265) |
| General Habitats: | Chaparral, Cismontane woodland |
| Microhabitat: | Clay, Gabbroic |
| 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: | BLM_S; SB_CalBG/RSABG; SB_CRES; SB_UCBG; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 49 |
| Element Occurrence Ranks: | |
| Excellent (A) | 6 |
| Good (B) | 4 |
| Fair (C) | 3 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 36 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Alpine (3211677), Barrett Lake (3211666), Dulzura (3211667), El Cajon Mtn. (3211687), Fallbrook (3311743), Margarita Peak (3311744), Mesa Grande (3311627), Palomar Observatory (3311637), Ramona (3311617), Rancho Santa Fe (3311712), Rodriquez Mtn. (3311628), San Marcos (3311722), San Pasqual (3311618), San Vicente Reservoir (3211688), Tule Springs (3211686), Valley Center (3311721), Viejas Mountain (3211676) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 19 | 39 % | |
| Road/trail construction/maint. | 16 | 32% |
| Mining | 3 | 6% |
| Recreational use (non-ORV) | 3 | 6% |
| Foot traffic/trampling | 2 | 4% |
| Improper burning regime | 2 | 4% |
| Military operations | 1 | 2% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 February 2025].