, Herbarium, Department of Biology, University of Western Ontario, London, Ontario N6A 3K7, Canada
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The Canadian Field-Naturalist Vol. 125 No. 4 (2011) - Notes
Fetid Dogweed (Dyssodia papposa; Asteraceae) and Slender Russian Thistle (Salsola collina; Amaranthaceae), New to Alberta, Canada
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