Original identification: Cirsium arvense
Current identification: Cirsium arvense
Photographer: Ron Bockelman
Date Photographed: August 14, 2010
Location: U.S.A., Washington, Columbia County: Umatilla NF Rd 6437, Blue Mountains.
Elevation: 5405 ft.
Coordinates: 46.1314°, -117.83748°
Phenology: Flowers