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17 January 2014 The Biology of Canadian Weeds. 153. Stachys palustris L.
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Abstract

Darbyshire, S. J., Francis, A., Mulligan, G. A. and Graham, G. 2014. The Biology of Canadian Weeds. 153. Stachys palustris L. Can. J. Plant Sci. 94: 709-722. Marsh hedge-nettle, Stachys palustris, is a perennial Eurasian member of the mint family, which has become naturalized and weedy in some parts of eastern North America. It is a hexaploid member of a holarctic species complex, which differs morphologically from the primarily tetraploid North American forms. The production of fleshy tuberous rhizomes is the most significant distinctive feature. In Canada, it has been a weed of potato and root crops in Nova Scotia, New Brunswick and Prince Edward Island, although other crops and areas, such as soybean in Ontario, are also affected. Usually considered a wetland plant, it readily spreads into drier arable fields from adjacent ditches and wetlands. Several herbicides available for use in Canada have been found to provide limited long-term suppression in agricultural systems, with the best results obtained using combined pre-emergent and post-emergent applications.

Stephen J. Darbyshire, Ardath Francis, Gerald A. Mulligan, and Gavin L. Graham "The Biology of Canadian Weeds. 153. Stachys palustris L.," Canadian Journal of Plant Science 94(4), 709-722, (17 January 2014). https://doi.org/10.1139/CJPS2013-300
Received: 17 September 2013; Accepted: 1 December 2013; Published: 17 January 2014
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