celery-leaved buttercup —  Ranunculus sceleratus multifidus {crowfoot family — Ranunculaceae}
Flora of the Yukon Territory, Cody, p. 304c
 { 1/25 sec, f9.0} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {12/08/07 Sunday, August 12, 2007; 2:45:20 PM}