Whats this plant growing all over my lawn?

[buzzer]

and how do I get rid of it?

We have come back from a few weeks holiday to find the lawn is a mess! anyone able to identify what the plants?

[buzzer]

Thanks Jeff...

any suggestions how I murder it?

[buzzer]

netherfield said:

Disagree with the Hornbeam,or at least my Hornbeam leaves aren't like that.

Any trees in the vicinty,my back lawn suffers with growth coming up from the roots of a cherry tree,although regular mowing keeps them at bay.

Yes, quite a few trees! do you think its them?