Name: Jeanie Minnesota (Zone 4a) Replace your lawn with a garden!
According to kew.org, cypripedium calceolus is distributed throughout Europe. It is commonly known as European Lady's Slipper and is not found in Minnesota, or at least is not native to Minnesota.
:+:+:+:+:+:+:+:+:
Old gardeners never die. They are just pruned and repotted.