This is Virgin’s Bower, Clematis Virginiana, a member of the Buttercup (Ranunculaceae) family.
The Deers have this plant ID thing down! We spy a tree or plant as we walk, Garden Expert Deer names it, lists its characteristics and the family it belongs to, and then we Photographer Deers take pictures. Now, if we can just coordinate the photographer Deers need for motionless macro subjects with Garden Expert Deer’s need to pluck a leaf, and pull blossoms closer to her for whiff tests. It’s a simple matter of timing. I know we can do it.