Burdock, and flaunting it. lol I second KWoods advice not to allow it to go to seed.
It does look sort of architectural in your flower bed, though. Might make a good accent plant if underplanted with a dense array of hostas, daylilies and other stuff.
There are ornamental species and varieties of burdock relatives (Rumex), so there's nothing embarrassing about having a wild member of the family show up in the garden.
Thanks all. I actually cut that bad boy down just tonight! My hubby's back is bad at the moment, and I'm not sure I can dig the root out of the ground-it's HUGE!! Lynn