Taxon Report
Silene occidentalis Wats. ssp. longistipitata Hitchc. & Maguirelong-stiped campion |
 © 2013 Kirsten Bovee |
Taxon Summary
Silene occidentalis ssp. longistipitata, commonly known as long-stiped campion, is a perennial herb in the Caryophyllaceae that is found only in California. It occurs within Chaparral, Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 1000 to 2000 meters. Silene occidentalis ssp. longistipitata is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Silene occidentalis Wats. ssp. longistipitata Hitchc. & Maguire |
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Common Name: |
long-stiped campion |
| Family: | Caryophyllaceae |
| Element Code: | PDCAR0U161 |
| USDA Plants Symbol: | SIOCL |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Jun-Aug | Jun-Aug |
| Elevation: | 1000-2000 (3280-6560) |
| General Habitats: | Chaparral, Lower montane coniferous forest, Upper montane coniferous forest |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G4T2Q |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCSC; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 18 |
| Element Occurrence Ranks: | |
| Excellent (A) | 1 |
| Good (B) | 11 |
| Fair (C) | 0 |
| Poor (D) | 3 |
| None (X) | 2 |
| Unknown (U) | 1 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Butte (BUT), Plumas (PLU), Shasta (SHA), Tehama (TEH) | |
| Quads: Name (Quad Code) | |
| Belden (4012113), Butte Meadows (4012115), Chalk Mtn. (4012187), Humboldt Peak (4012124), Humbug Valley (4012123), Jonesville (4012114), Lyonsville (4012136), Mineral (4012135), Onion Butte (4012125), Skunk Ridge (4112117) | |
Threat List Data from the CNDDB
| Threat List Total: | 7 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 11 | 61 % | |
| Logging | 7 | 38% |
| Road/trail construction/maint. | 4 | 22% |
| Grazing | 3 | 16% |
| Other | 3 | 16% |
| Recreational use (non-ORV) | 3 | 16% |
| Biocides | 1 | 5% |
| Foot traffic/trampling | 1 | 5% |
Selected References
| Silene occidentalis ssp. longistipitata profile for potential Species of Conservation Concern evaluation (2018) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 2 November 2025].