Only three extant populations of P. brevissimus var. brevissimus, which occur along a 2.6-km stretch of Highway 3 south of Princeton, are known in British Columbia. Suitable habitats for P. brevissimus var. brevissimus are extremely restricted in Canada, occurring only in the Princeton area, thus opportunities for colonization are extremely limited. Road-building, housing developments, and recreational off-road vehicle are threats. The populations occur on private land; in the absence of federal or provincial rare species legislation or active stewardship, such populations of rare plants are not secure. Finally, P. brevissimus var. brevissimus in British Columbia is at the northern extent of its range and may represent populations that are genetically distinct and important for the long-term survival and evolution of the species.
Douglas, G.W., Penny, J.; Barton, K.. 2003. Status of Dwarf Woolly-heads (Psilocarphus brevissimus var. brevissimus) in British Columbia. Ministry of Water, Land and Air Protection; Ministry of Sustainable Resource Management. Species Status Report. B109
Topic: Species Status
Keywords: status, reports, P. brevissimus var. brevissimus, dwarf woolly-heads
Scientific Name: Psilocarphus brevissimus var. brevissimus
English Name: Dwarf Woolly-heads
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