Its Hieracium canadense. Get rid of it immediately. It can take over your lawn and destroy it completely. You should use professional weed killers to kill weeds.
Hieracums I have seen have fuzzy leaves
In the sticks near Peterborough
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
I know hieracium as Fox and Cubs which is also a useful wildflower for pollinators and is actually sold by Crocus.
A classic case of beauty in the eye of the beholder then and, either way, definitely not something to attack with chemicals.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw