. A guide to the poisonous plants and weed seeds of Canada and the northern United States. Poisonous plants; Botany; Botany. 80 Pasture and Fig. 16.—^Poison Hemlock—Conium Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomson, Robert Boyd, 1870-; Sifton, Harold Boyd, joint author. [Toronto] University of Toronto Press

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1922