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BC Conservation Data Centre: Conservation Status Report

Prosartes smithii
Smith's fairybells


 
Scientific Name: Prosartes smithii
Scientific Name Synonyms: Disporum smithii
English Name: Smith's fairybells
   
Provincial Status Summary
Status: S3S4
Date Status Assigned: April 30, 2025
Date Last Reviewed: April 30, 2025
Reasons: There are currently 22+ known occurrences of Prosartes smithii in British Columbia, 20 of which are considered extant. The range extent is 2,804 square kilometres and the area of occupancy is over 80 square kilometres with additional occurrences likely.
 
Range
Range Extent: D = 1,000-5,000 square km
Range Extent Comments: The range extent for Prosartes smithii, calculated using a convex hull, is 2,804 square kilometres; sporadically occurring on the west coast of southern Vancouver Island.
Area of Occupancy (km2): DE = 6-125
Area of Occupancy Comments: The area of occupancy, using a 2km x 2km grid cell for extant occurrences, is over 80 square kilometres.
 
Occurrences & Population
Number of Occurrences: C = 21 - 80
Comments: There are currently 22+ known occurrences of Prosartes smithii in British Columbia, 20 of which are considered extant.
Number of Occurrences with Good Viability / Ecological Integrity: D = 13 - 40
Percent Area with Good Viability / Ecological Integrity: U = Unknown
Number of Occurrences Appropriately Protected & Managed: C = 4 - 12
Population Size: Rank Factor not assessed
 
Threats (to population, occurrences, or area affected)
Degree of Threat: BC = High - medium
Comments: The primary threat is timber harvest and related activities like road building. Further research will be required to determine how significant the impact is on the long term viability of affected populations.
 
Trend (in population, range, area occupied, and/or condition of occurrences)
Short-Term Trend: Rank Factor not assessed
Long-Term Trend: Rank Factor not assessed
 
Other Factors
Intrinsic Vulnerability: Rank Factor not assessed
Environmental Specificity: Rank Factor not assessed
Other Rank Considerations:
 
Information Gaps
Research Needs:
Inventory Needs:
 
Stewardship
Protection:
Management:
 
Version
Author: Penny, J. and R. Batten
Date: January 03, 2022
 
References
British Columbia Conservation Data Centre. Botany Program. 2000. Database containing records of rare plant collections and observations in the province of British Columbia.
 

Please visit the website Conservation Status Ranks for information on how the CDC determines conservation status ranks. For global conservation status reports and ranks, please visit the NatureServe website http://www.natureserve.org/.

Suggested Citation:

B.C. Conservation Data Centre. 2022. Conservation Status Report: Prosartes smithii. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 5, 2026).