Here is an interesting weed problem that I have not run into before. The pictures come from Larry Ginger of American Lawn Care. Larry found it growing in a lawn in Ankeny, IA.
I did not know what it was, so I sent it to our weed guy in Agronomy, Dr. Bob Hartzler. Bob identified it as Proso Millet. Further investigation on the internet indicates that this is exactly what it is.
Proso Millet (Panicum miliaceum) is a warm season, annual grass that has been used as a crop in areas to the west of us for many years. It is a great seed producer and the seed can be used as feed for a variety of animals. Birds also like it, which would explain its presence in a lawn.
Thanks, Larry. Keep them coming. This is a good learning experience for me.