tansy mustard —  Descurainia sophioides {mustard family — Brassicaceae (Cruciferae)}
Flora of the Yukon Territory, Cody, p. 335b
 { 1/320 sec, f3.5} – {Millennium trail, Whitehorse, Yukon} – {01/07/07 Sunday, July 1, 2007; 3:33:46 PM}