common yarrow, milfoil —  Achillea millefolium borealis {composite family — Asteraceae (Compositae)}
Flora of the Yukon Territory, Cody, p. 541a
 { 1/45 sec, f8.0} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {01/07/03 Tuesday, July 1, 2003; 8:50:17 PM}