Spalding's campion (Silene spaldingii) COSEWIC assessment and status report: chapter 10

Existing Protection or Other Status Designations

Silene spaldingii is not covered under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), or the IUCN Red Data Book. It is listed as threatened under the Endangered Species Act (U.S.A.), providing protection for the species on U.S. federal lands.

The species is globally ranked by NatureServe (2003) as G2 indicating that it is "imperiled because of rarity (typically six to 20 extant occurrences or very few remaining individuals) or because of some factor(s) making it very susceptible to extirpation or extinction". In the U.S.A., S. spaldingii is ranked as S1 in Idaho, Montana and Oregon. This rank indicates that it is "critically imperiled because of extreme rarity (5 or fewer extant occurrences or very few remaining individuals) or because of some factor(s) making it especially vulnerable to extirpation or extinction" (NatureServe 2003). In Washington, the species is ranked as S2.

In British Columbia, the species is ranked as S1 and has been placed on the British Columbia Ministry of Sustainable Resource Management Red List (Douglas et al. 2002). This list indicates the species is extirpated, endangered, or threatened in British Columbia. Since S. spaldingii is restricted to British Columbia, it is ranked as N1 in Canada.

The S. spaldingii population in British Columbia occurs on a privately owned ranch, on the edge of the Tobacco Plains Indian Reserve. Its inclusion on the British Columbia Red List does not currently provide legal protection in British Columbia for the plant, or its critical habitat.

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