twoflower cinquefoil —  Potentilla biflora {rose family — Rosaceae}
Flora of the Yukon Territory, Cody, p. 390c
 { 1/125 sec, f11.0} – { , Tombstone Territorial Park, Yukon} – {27/06/10 Sunday, June 27, 2010; 2:47:07 PM}