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Herman, D.E., et al. Provided by ND State Soil Conservation Committee. United States, North Dakota.
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Herman, D.E., et al. Provided by ND State Soil Conservation Committee. United States, North Dakota.
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Herman, D.E., et al. Provided by ND State Soil Conservation Committee. United States, North Dakota.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Washington, King Co., Seattle.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Massachusetts, Barnstable Co., Cape Cod.
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W.D. Brush. Provided by National Agricultural Library. United States, Pennsylvania.
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W.D. Brush. Provided by National Agricultural Library. United States, Pennsylvania.
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P. Freeman Heim. Provided by National Agricultural Library. United States, Florida, Ocala National Forest.
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R.K. LeBarron. Provided by National Agricultural Library. United States, Minnesota.
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R.K. LeBarron. Provided by National Agricultural Library. United States, Minnesota, Superior National Forest.
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E.S. Shipp. Provided by National Agricultural Library. United States, Minnesota.
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G.B. Sudworth. Provided by National Agricultural Library. United States, California.
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O.M. Wood. Provided by National Agricultural Library. United States, New Jersey.
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Provided by National Agricultural Library. United States, Minnesota, Chippewa National Forest.
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Provided by National Agricultural Library. United States, Wisconsin, Adams Co..
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. Spain, Canary Islands.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, California, Los Angeles Co., South Coast Botanic Garden.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory.
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T.H. Gill. Provided by National Agricultural Library. United States, Arizona, Apache-Sitgreaves National Forest.
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G.B. Sudworth. Provided by National Agricultural Library.
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Provided by National Agricultural Library.
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Provided by National Agricultural Library.
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Provided by National Agricultural Library.