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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 25, 2008
Location: U.S.A., Oregon, Benton County: E shore of Fisher Island Pond, ca. 0.13 mi. S of Hwy 34, Corvallis. .
Elevation: [not provided]
Coordinates: [not provided]
Phenology: Flowers
