What is this weed?
I posted this on the weed forum, but there's not much activity there right now.
It's small & has a sharp smell when run over with the lawnmower. I have to take a Benedryl after mowing over it, it makes me itch so bad. I had my dd hold my cutting mat behind it so it wouldn't blend into the grass & other weeds, but you can get an idea of scale from it also.