blue-green willow —  Salix glauca {willow family — Salicaceae}
Flora of the Yukon Territory, Cody, p. 224b
It's over oxytropis maydelliana { 1/200 sec, f4.0} – {Haeckel Hill, Whitehorse, Yukon} – {29/06/07 Friday, June 29, 2007; 4:07:11 PM}