New Species - Marsh Bedstraw

As with the Ragged Robin I found a couple of days ago, this is another species I wasn't expecting to find here as I associate them with wetter ground. It was a struggle to identify it as according to my flower books the plant had some features of Heath Bedstraw and some features of Marsh Bedstraw. However the 'Flora of Monmouthshire' sorted it out for me. Apparently the typical Marsh Bedstraw found here is Galium palustre ssp palustre whereas there is also a Galium palustre ssp elongatum which is slightly different and was confusing the issue.