Canada thistle: see thistle.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
Related content from HighBeam Research on: Canada thistle
Control Canada Thistles This Fall. (Hay & Forage Grower (Online Exclusive))
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Using high spatial resolution satellite imagery to map leafy spurge (euphorbia esula) and Canada thistle (cirsium arvense) in the North unit of Theodore Roosevelt National Park.(Collegiate Communications--Graduate)(Brief article) (Proceedings of the North Dakota Academy of Science)
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