This plant is Allium tricoccum, also known as ramps. The picture was taken April 16, 2008 in the Scifres-Maier Woods of the Celery Bog Park. Earlier that day I had been in a woods in Henry County and also found ramps. I tasted a leaf of these Celery Bog ramps, they seem to have more zing in them. You can find these in the Purdue Hort Park woods too.

http://en.wikipedia.org/wiki/Allium_tricoccum