Yellowstone draba; Yellowstone whitlow-grass —  Draba incerta {mustard family — Brassicaceae (Cruciferae)}
Flora of the Yukon Territory, Cody, p. 342b
A Draba, a type of mustard plant,  { 1/125 sec, f16.0} – {Montana Mountain, Carcross, Yukon} – {04/07/10 Sunday, July 4, 2010; 4:19:42 PM}