I'm not sure. This is something that literally was not there just 2 weeks ago. The flowers look pretty much exactly like dandelion flowers, just a little smaller. the photos don't show that as well. You'd have a hard time convincing me to eat this one, even if I had a ton of proof it was edible, lol. The only words I can come up with that seem to fit it are words like monster, vicious looking, scary, etc.

I am going to dig it up, but, I'd like to find out what it is to know if I need to go further than just digging it up. I'd hate for one of the animals to eat some of it if it's poisonous.