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Photo © 2005 Don Knoke. Please contact the photographer to request permission to use this photo. If the photographer cannot be reached, inquire with the Collections Manager.
Photo metadata:
Original identification: Sonchus arvensis
Current identification: Sonchus arvensis
Photographer: Don Knoke
Date Photographed: September 25, 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]
Comments: Note the stalked glands; this feature distinguishs it from variety uliginosis.
Voucher Specimen: Don Knoke 960, WTU Herbarium
