Another plant ID - looks like a nettle but isn't!

[Mitzi]

How annoying! I would never have guessed that.

[Scarlet]

Honestly the leaves looked so delicate..but I think undercover growing the leaves came quick so were a bit softer than usual.
I see the stuff every day and I didn't click if at all!

[rary]

I also have ground elder but when I was changing the garden a couple of years ago I removed all the plants I wanted to keep and put a thick late of cardboard and newspaper down then pile d my compost etc on top of that and planted into it I now have very little ground elder showing and what does come through is easy to pull out