Distribution details in United Kingdom (Northern Ireland)
EPPO Reporting Service (2010/220) : discovered in 2010 on the banks of the river Lagan, one of the major waterways in Northern Ireland’s (GB). 5 tons of plants were removed from the river banks.
* BBC News (2010) River Lagan under attack from invading alien plants. News Northern Ireland. 4th of November 2010. http://www.bbc.co.uk/news/uk-northern-ireland-11693434