Thanks for your question.

This is for sure is not a sedum nor is it creeping thyme (sorry about that!). Rather, it is a species of moss. When I enlarged the picture, I was able to narrow it down to a type of feather moss. If you enlarge your picture and look at the “stalks”, you should be able to see some resemblance to a feather. There are five or six species of feather mosses in Minnesota. To distinguish further among them would require a microscopic examination. One of the most common feather mosses in Minnesota is red-stemmed feather moss. It gets its name from red appendages it produces later in the summer upon which fruiting sacs are located. See the following for additional information:

http://www.minnesotaseasons.com/Plants/brocade_moss.html

http://www.wildflowerweb.co.uk/plant/329/feather-moss - :~:text=Feather mosses are named for,clusters on the forest floor.

Looks quite pretty. Thanks for consulting us.

Glad to have been of assistance.  Thanks for consulting us.