It's hard to believe that this innocent-looking little flower produces such obnoxious stickers. The curly-que seed pods twist their way into some long-haired dogs' coats (and your socks/shoe laces, if they're exposed, which is why we wear snow gators during the weed season) and take hours to remove. Fortunately, they don't seem to do that to Vizslas or Bloodhounds.
We used to make "scissors" out of the green seed pods when we were in grammar school. I didn't know they were called Heron's/Crane's/Stork's bill until I looked them up on the Internet, but it's very easy to see why they use those names, when you look at the green seed pods.