common yarrow, milfoil —  Achillea millefolium borealis {composite family — Asteraceae (Compositae)}
Flora of the Yukon Territory, Cody, p. 541a
 { 1/500 sec, f9.5} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {08/07/03 Tuesday, July 8, 2003; 3:02:11 PM}