Bucket Week - Day Two

Day two of Bucket Week is going well. I did my bucket while waiting for my dinner to cook in the oven. Tomorrow I'll get my "Suzie-Homemaker" badge. Anyway. Can someone tell me what this plant is? I like to know the name of things I'm cursing. It is so noxious, I hate to even elevate it to plant status. It looks a bit like a dandelion, but has these barbs on the edges of the leaves that catch my hands like thorns. It makes Bucket Week much harder going.