Greene's mountain ash, western mountain-ash —  Sorbus scopulina {rose family — Rosaceae}
Flora of the Yukon Territory, Cody, p. 403b
 { 1/30 sec, f14.0} – {Cottonwood Trail, Kluane National Park, Yukon} – {13/06/10 Sunday, June 13, 2010; 3:21:45 PM}