Taken at the weekend, only one I recognised was Silver weed, I'd be interested if anyone can identify them;
Second last one looks like this ...
http://www.botanicalkeys.co.uk/flora/content/species.asp?1967
... BTW that's a good site for plant ID
I thought it looked a bit more like - golden samphire - http://www.botanicalkeys.co.uk/flora/content/species.asp?653 but it's a tough call so you may well be right!
That is a very good site, bookmarked, nice one Andy.
What do you think of this for the 4th plant http://www.botanicalkeys.co.uk/flora/content/species.asp?219