Original identification: Lactuca serriola
Current identification: Lactuca serriola
Photographer: Ron Bockelman
Date Photographed: August 14, 2010
Location: U.S.A., Washington, Columbia County: Umatilla NF Middle Point Ridge Trail No. 3116, Blue Mountains.
Elevation: 3510 ft.
Coordinates: 46.14363°, -117.80257°