plantladylin, Warfighter's plant looks exactly like one I asked about yesterday. Someone suggested it might be False Green Helleborine but the Broadleaf looks like a perfect match. I mentioned that it looked a lot like my yellow lady slipper and an article I just read said it is sometimes mistaken for one of the lady slippers. No idea how it got started in my garden but I've dug a couple bucketfuls this week and there's more today. Last year was the first time I'd seen it. Thanks for the suggestion!
I think it's a match.