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The History of Russian Pigweed, Axyris amaranthoides (Chenopodiaceae, Atripliceae), in North America
W. H. Blackwell
Vol. 26, No. 1 (Jan., 1978), pp. 82-84
Stable URL: http://www.jstor.org/stable/4042694
Page Count: 3
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Herbarium records indicate that Russian pigweed (Axyris amaranthoides L.) entered the flora of Manitoba in 1886, spreading from there, by its own devices and by secondary introductions, to other provinces of Canada and to the United States. It is best established (to the extent of being considered a weed) in North Dakota and the prairie provinces of Canada.
Weed Science © 1978 Weed Science Society of America