A couple of plants to ID please!

The first one has self-seeded into one of my disused pots. I went to empty it this morning and noticed this silvery little thing. No silvery things anywhere nearby that I know of except my four cineraria seedlings, but they are only an inch high so not seeding yet.


The second is supposed to be a silver birch but much to my disappointment (parent tree was felled in wind last year, I was hoping this would be offspring of it), it doesn't appear to be. I'm thinking possibly sycamore?

Thanks

 

Aha! I managed to fail to get some poppies growing from seed so that's very cool

Otherwise, nuts! Don't want a sycamore so that'll have to go.

Thank you!

Oh, I forgot one - any idea what this is?