I think Mother Nature is confused…

I noticed these a couple of days ago.  We certainly get them every year, but not this early in the season.   When the flowers bloom, they look like the blossoms from a Lilly of the Valley, but I don’t think that’s what these are.   They blossom with 1 flower per stem and last about a week or so.  I’m curious, so if you have a theory on them, I’d like to know what they are.  So far I haven’t found them in any of the wild flower references.