In the latest installment of "John Knows Squat About Plants," we have this fellow.  This patch has hundreds of the things, next to a tennis court.  I have not even the slightest idea what it is.  But it is common as dirt around here.  If your lawn hasn't been mowed regularly, you have this critter in great abundance on your property.

Mostly I like this photo for the way this plant pops compared to the heavily out of focus background.  It almost feels like a 3D movie, only without the irritating glasses, high ticket price and incessant braying by fanboys about how awesome it is.