There isn't a much more widely known spring ephemeral in the Kentucky woodlands.  If you have taken a hike in April and May you have most certainly seen this plant.  Emerging in April the large umbrella leaves can grow to over 12" tall.  Once the root system is mature enough to support flowering the stem will have two leaves which hide a solitary white flower below.  As the summer progresses the plant will begin to go back into dormancy and disappear until the next year.  Over the years this plant will colonize and make amazing masses in your woodland garden.