Conservation Evaluation of Lemmon's Holly Fern, Polystichum lemmonii, a Threatened Fern in Canada

Authors

  • George W. Douglas Conservation Data Centre, British Columbia Ministry of Sustainable Resource Management, Terrestrial Information Branch, P.O. Box 9993 Stn Prov Govt, Victoria, British Columbia V8W 9R7

DOI:

https://doi.org/10.22621/cfn.v118i2.904

Keywords:

Lemmon's Holly Fern, Polystichum lemmonii, threatened, distribution, population size, British Columbia

Abstract

In Canada, Lemmon's Holly Fern, Polystichum lemmonii, is restricted to the Baldy Mountain area on the eastern side of the Okanagan River valley in south-central British Columbia. This population represents the northern limits of the species which ranges south through northern Idaho, Washington and Oregon to northern California. In British Columbia, P. lemmonii is associated with ultramafic rocky ridges within a montane forest at an elevation of 1900 m. The population in the Baldy Mountain area is relatively small, unprotected and potentially imperilled by mining exploration, forest road construction or wildfires.

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Issue

Vol. 118 No. 2 (2004)

Section

Articles

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