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Photo © 2008 Gerald D. Carr. Usage restrictions: Photos may be used without prior permission for strictly personal use or classroom instruction. Prior permission is required for any profit-seeking or commercial use, including books, printed material, computer programs, web sites, or any use in which the photos will be publicly accessible. (Contact the photographer.)
Photo metadata:
Original identification: Xanthium strumarium var. canadense
Current identification: Xanthium orientale
Photographer: Gerald D. Carr
Date Photographed: August 22, 2008
Location: U.S.A., Oregon, Linn County: Truax Island, vic. gravel pits and ponds, 0.15-0.35 mi. W of Riverside Drive SW, NE of Corvallis. .
Elevation: [not provided]
Coordinates: [not provided]
Phenology: Flowers
