Cliff paintbrush (Castilleja rupicola) COSEWIC assessment and status report: chapter 13
Technical summary
cliff paintbrush
castilléjie des rochers
Range of Occurrence in Canada: British Columbia
Extent and area information
[area enclosed within the limits of a polygon including all sites].
[actual area occupied by the small populations].
Population information
Mt. Brice: 3
Marmot Mtn: 1;
the remainder either “few plants” or unknown
Threats (actual or imminent threats to populations or habitats)
- None known at present for these sub-alpine localities
- Perhaps potential threat in future with climate change
Rescue effect (immigration from an outside source)
Quantitative analysis
[provide details on calculation, source(s) of data, models, etc]
N/A
Current status
Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Threatened (May 2005)
Status and reasons for designation
Reasons for Designation: A perennial of restricted geographical occurrence found on cliffs, rock outcrops and ridges at high elevations. The small, fragmented, populations consist of scattered individuals, likely fewer than 250 plants, which are exceptionally vulnerable to stochastic events.
Applicability of criteria
Criterion A (Declining Total Population): No information on declines.
Criterion B (Small Distribution, and Decline or Fluctuation): Not met.
Criterion C (Small Total Population Size and Decline): Not met due to lack of decline data.
Criterion D (Very Small Population or Restricted Distribution): Qualifies as Endangered, D1, based on a presumed population size of fewer than 250 plants but best considered as Threatened D1+2 because the plants are located on several mountaintops and are therefore at reduced risk from stochastic events and imminent extirpation.
Criterion E (Quantitative Analysis): None available.