BC Conservation Data Centre: Species Summary
Silene scouleri ssp. scouleri
coastal Scouler's catchfly
| Scientific Name: | Silene scouleri ssp. scouleri | ||||||||||
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| Scientific Name Synonyms: |
Silene scouleri ssp. grandis
Silene scouleri var. pacifica |
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| English Name: | coastal Scouler's catchfly | ||||||||||
| English Name Synonyms: |
Coastal Scouler's Catchfly
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| Classification / Taxonomy | |||||||||||
| Scientific Name - Concept Reference: | Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR. | ||||||||||
| Classification Level: | Subspecies | ||||||||||
| Taxonomy Comments: | Before 2012, the BC CDC recognized material called Silene scouleri ssp. grandis (narrowly endemic to Vancouver Island and the Gulf Islands) as distinct from material in the typical variety of S. scouleri ssp. scouleri and as synonymous with 'pacifica' material from BC. In 2012, BC decided to follow FNA (Vol. 5) and Kartesz (1999) who treat coastal material in the typical variety of S. scouleri ssp. scouleri, rather than in var. pacifica or var. grandis. |
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| Species Group: | Vascular Plant | ||||||||||
| Species Code: | SILESCO2 | ||||||||||
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| Conservation Status / Legal Designation | |||||||||||
| Global Status: | G5T3T5 (Aug 2002) | ||||||||||
| Provincial Status: | S1 (Apr 2019) | ||||||||||
| BC List: | Red | ||||||||||
| Provincial FRPA list: | |||||||||||
| Provincial Wildlife Act: | |||||||||||
| COSEWIC Status: | Endangered (May 2003) | ||||||||||
| SARA Schedule: | 1 - Endangered (Jan 2005) | ||||||||||
| General Status Canada: | |||||||||||
| Ecology & Life History | |||||||||||
| General Description: | |||||||||||
| Technical Description: | |||||||||||
| Similar Species: | |||||||||||
| Habitats: (Type / Subtype / Dependence) |
Forest / Garry Oak Woodland / Unknown
Grassland/Shrub / Garry Oak Maritime Meadow / Unknown Rock/Sparsely Vegetated Rock / Garry Oak Coastal Bluffs / Unknown |
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| Global Habitat Comments: | This subspecies is found on grassy, rocky slopes, coastal bluffs, dry prairies, and woodlands at elevations ranging from 0 to 3,800 meters (Morton, 2020). | ||||||||||
| Provincial Habitat Comments: |
Silene scouleri ssp. grandis is found in dry to mesic maritime meadows and mesic, open, deciduous woodlands in the sub-Mediterranean climate caused by the rain shadow of the Olympic and Vancouver Island mountains. Habitat occurs on nearly level to gentle slopes with various aspects. Meso-slope position is usually level but may include upper and middle slopes. Sites are well to rapidly drained, and are dry in summer and moist in winter. Habitat occurs on shallow soils to bedrock, or in locations with severe exposure to wind and/or salt spray. There may be no root restricting layer. Trees are generally not present. Shrubs, including Rosa nutkana or Symphoricarpos albus, are occasionally present. A mix of native and introduced plant species dominate the herbaceous layer. |
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| Provincial Phenology: (1st half of month/ 2nd half of month) |
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| Elevation (m) (min / max): | Provincial: | ||||||||||
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| Dispersal: | |||||||||||
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| Distribution | |||||||||||
| Endemic: | N | ||||||||||
| Disjunct, more common elsewhere: | |||||||||||
| Peripheral, major distribution elsewhere: | |||||||||||
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| Last Literature Search: | |||||||||||
| References and Related Literature | |||||||||||
Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. 358pp. |
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Please visit the website Conservation Status Ranks for definitions of the data fields used in this summary report.
Suggested Citation:
B.C. Conservation Data Centre. Species Summary: Silene scouleri ssp. scouleri. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Apr 6, 2026).