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<p>This image is not copyrighted and may be freely used for any purpose. Please credit the artist, original publication if applicable, and the USDA-NRCS PLANTS Database. The following format is suggested and will be appreciated:</p> <p>USDA-NRCS PLANTS Database / Herman, D.E., et al. 1996. <cite>Nor

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Supplier: USDA NRCS PLANTS Database

Herman, D.E., et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Administration, Bismarck.

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