northern anemone, smallflowered anemone —  Anemone parviflora {crowfoot family — Ranunculaceae}
Flora of the Yukon Territory, Cody, p. 291b
Is this and next photo really the same? { 1/125 sec, f5.6} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {16/05/04 Sunday, May 16, 2004; 12:57:46 PM}