Threatened species monitoring: results of a 17-year survey of Pitcher's Thistle, Cirsium pitcheri, Pukaskwa National Park, Ontario
Promaine, Andrew
Article
1999
The Canadian field-naturalist
113
Issue: 2
296--298
New York Botanical Garden, LuEsther T. Mertz Library
English
Ottawa Ottawa Field-Naturalists' Club
DOI: https://doi.org/10.5962/p.358579
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