wormseed mustard —  Erysimum cheiranthoides {mustard family — Brassicaceae (Cruciferae)}
Flora of the Yukon Territory, Cody, p. 350a
 { 1/100 sec, f9.0} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {30/06/07 Saturday, June 30, 2007; 2:29:06 PM}