white water buttercup —  Ranunculus aquatilis eradicatus {crowfoot family — Ranunculaceae}
Flora of the Yukon Territory, Cody, p. 298b
 { 1/800 sec, f3.2} – {McIntyre Ck. Copper Haul, Whitehorse, Yukon} – {07/08/09 Friday, August 7, 2009; 6:27:08 PM}