black-tipped groundsel —  Senecio lugens {composite family — Asteraceae (Compositae)}
Flora of the Yukon Territory, Cody, p. 594c
this and next 2: are they right?? { 1/320 sec, f5.6} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {24/06/06 Saturday, June 24, 2006; 1:33:14 PM}