variegated horsetail —  Equisetum variegatum variegatum {horsetail family — Equisetaceae}
Flora of the Yukon Territory, Cody, p. 031a
 { 1/200 sec, f2.7} – {Paddys Pond/Ice Lake, Whitehorse, Yukon} – {03/06/08 Tuesday, June 3, 2008; 2:05:29 PM}