Anyone know what this is?

[Batinahat]

Anyone know what this is?

That looks like a sycamore seedling/sapling to me.
Pull it up!

Thanks @BlossomCat will do!!

Sycamore. Pull the bastard up. I wage a constant battle against them.

You all did so well on the previous one, how about this? There is lots of it so I assumed weed and starting enthusiastically pulling it all out but now I've found some that is flowering and suddenly not so sure!!

Hope you don't mind me hi-jacking, but anyone know what this one is?

Bat your second and third photos look like hypericum to me.

Bat I don't think that is hypericum. I've got some in my garden and am trying very hard to remember what it's called. It has pinky red flowers and quite an unusual leaf arrangement on the stalk. Spreads like crazy. It will come to me!

Red valerian!!
goo.gl/images/SSDdFj

Yep; Red Valerian. It will spread like the clappers...

Yes does look like red valerian! Thanks for the ID :) I have removed most of it. It was spreading rapidly all over! Small batches quite pretty but was definitely taking over a bit!!