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Canadian Waterweed Inconspicuous pinkish flowers, only female are produced and all reproduction is vegetative. Transluscent dark-green leaves, usually in whorls of 3. Stems to 3m. Still or slow-moving water to 3m+. Widespread, first Irish record 1836. Replaced in some locations by Nuttall's Waterweed. An invasive plant in Ireland: Target 10 - Managing Invasive Alien species My thanks to Dr. Michael Millane, Inland Fisheries Ireland for correcting the photographs previously shown, which were of Nuttall's Waterweed, E. nuttalli |
Canadian Waterweed. All photographs: Dr. Michael Millane, Inland Fisheries Ireland