Original identification: Sonchus arvensis ssp. uliginosus
Current identification: Sonchus arvensis ssp. uliginosus
Photographer: Craig Althen
Date Photographed: September 8, 2010
Location: U.S.A., Montana, Flathead County: Whitefish.
Elevation: 3200 ft.
Coordinates: 48.446867° N, 114.354183° W
Phenology: Flowers