Common and scientific names of weeds in Canada = Noms populaires et scientifiques des plantes nuisibles du Canada Darbyshire, S. J. creator text book Ottawa Agriculture and Agri-Food Canada = Agriculture et agroalimentaire Canada c2000 2000
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ENG Canada Nomenclature Nomenclature (Popular) Weeds Publication, 1397/B https://www.biodiversitylibrary.org/bibliography/53725 0660615606 10.5962/bhl.title.53725