balsam poplar —  Populus balsamifera balsamifera {willow family — Salicaceae}
Flora of the Yukon Territory, Cody, p. 212a
 { 1/60 sec, f18.0} – {McIntyre Ck. college, Whitehorse, Yukon} – {18/08/09 Tuesday, August 18, 2009; 4:04:14 PM}