Hmm.. Korean violet? Ginger of some kind?
Here is a link that might be useful: jsward's plant
Looks like a brunnera to me. Here's a picture of my Jack Frost. Jsward's isn't Jack Frost, but still, the resemblances are very strong.
I agree it resembles Jack Frost, I have never seen these in my woodland in 15 the years I have been here. This year there are dozens of them all in one area and none are larger than 1" to 1 1/2" I haven't seen them anywhere else. The area is full of Wild Ginger, Solomon Seal, and Devil's Walking Stick and of course Poison Ivy. The others have always been there.
Here is a link that might be useful: brunnera?