Two years ago, I couldn't name cormorants, probably the most numerous birds at White Rock Lake. I called them Stinky Birds, because of all the odoriferous scat they drop in some areas around the lake (specifically the shore line just south of Mockingbird Lane on the Dog Park side of the lake, along Lawther), stinking the place up. In a similar spirit of ignorance, I'm calling these flowers, "pompom thistles." Why not?
They're small, about the same diameter as the length of the last digit on my smallish fingers.