Trying to identify and Wild Plant?

Question

I live in Gettysburg PA and I found a plant while out in the woods, I can't identify it. It grows in patches and looks like it a spreading plant that sends out runners. It is about a foot tall. Some plants have one stalk that look similar to that of a dandelion (light green/white and shiney). Other plants split into two branches and at the junction there is a five-pedal flower with yellow parts in the center. The is one leaf at at the end of the stems and each leaf has between 4 and five lobes.

This is probably a long shot by maybe someone can help. Thanks.

Answer 1

Mayapple, perhaps?  Podophyllum peltatum?

http://plants.usda.gov/java/profile?symb...

(btw, it's "petal" for flowers, "pedal" for things you actuate with your foot)

Answer 2

Possibly Trollius

http://images.google.com/imgres?imgurl=h...