white sweet-clover —  Melilotus alba {pea family — Fabaceae (Leguminosae)}
Flora of the Yukon Territory, Cody, p. 416a
 { 1/180 sec, f8.0} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {08/07/03 Tuesday, July 8, 2003; 1:35:25 PM}