common nettle, stinging nettle —  Urtica dioisa gracilis {nettle family — Urticaceae}
Flora of the Yukon Territory, Cody, p. 241a
 { 1/30 sec, f18.0} – {McIntyre Ck. college, Whitehorse, Yukon} – {12/08/09 Wednesday, August 12, 2009; 3:28:15 PM}