Galium murale at Rosslare Harbour

I have been trying to find Galium murale at Rosslare Harbour since I found it at Fishguard ferry port (Wales) in 2012. Paul Stanley informed me he found it at Rosslare Harbour in June 2014, I went to look the other day and found the Galium in three sites. At this time of year it looks rather like a non-flowering Sherardia arvensis (Field Madder). This is another new non-native species to be added to the Irish list. At Fishguard there are now 1000s of plants, will be interesting to see how it spreads at Rosslare.