I can't say I have ever seen this one before. Any idea what it is? Found it coming up in the middle of my crab grass. I pulled away the crab grass because it's interesting looking.
Weed ID (Strange one)
You are the lucky owner of Prairie Parsley, Polytaenia nuttallii a wonderful native plant, and the larval food for the Black Swallowtail butterfly.
http://www.wildflower.org/plants/result.php?id_plant=PONU4