Original identification: Sonchus arvensis
Current identification: Sonchus arvensis
Photographer: Don Knoke
Date Photographed: September 22, 2005
Location: U.S.A., Washington, Kittitas County: Near junction of Woodhouse Road and Canyon Road, south of Ellensburg.
Elevation: [not provided]
Coordinates: [not provided]
Phenology: Vegetative
Voucher Specimen: Don Knoke 960, WTU Herbarium