Slender collomia (Collomia tenella) COSEWIC assessment and status report: chapter 10

Existing Protection or Other Status

International status

Collomia tenella is not covered under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), the Endangered Species Act (USA) or the IUCN Red Data Book.Globally, C. tenella has a rank of G4? indicating that in most of its range the plant is apparently secure. In the western United States, C. tenella is common.  It is considered possibly imperiled or imperiled in both Utah and Wyoming (S2? and S2 respectively; NatureServe Explorer, 2001).

National and provincial status

Nationally, C. tenella has been given the rank N1. Provincially, C. tenella has been ranked as S1 by the Conservation Data Centre and appears on the British Columbia Ministry of Sustainable Resource Management red list (Douglas et al. 2002a). This is the most critical rank that can be applied to species at the provincial level and indicates that the species is "critically imperiled because of extreme rarity (typically five or fewer occurrences or very few remaining individuals) or because of some factor(s) making it especially vulnerable to extirpation or extinction".

There is currently no specific legislation for the protection of rare and endangered vascular plants in British Columbia given this critical rank. In the absence of federal or provincial rare species legislation or active stewardship, populations of rare plants on private lands are not secure. However, the private property on which C. tenella occurs does fall within the Agricultural Land Reserve and is therefore afforded some protection against certain types of property development.

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