Lush Little Weed

I am not sure what plant or flower this is, I am almost sure it's a weed?  I took this yesterday on my iPhone whilst out walking the dogs in one of the local fields.  I was just going to add  another picture of one of my glorious poppies, which are now basking in the sun, when I saw this on my scene, but because I really love the elegance of these petals I changed my mind - Poppy now my extra :-)