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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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Herman, D.E., et al. Provided by ND State Soil Conservation Committee. United States, North Dakota.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Massachusetts, Suffolk Co., Boston, Arnold Arboretum.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Massachusetts, Suffolk Co., Boston, Arnold Arboretum.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, New Hampshire, Coos Co., Mount Washington.
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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.
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P. Freeman Heim. Provided by National Agricultural Library. United States, Wisconsin, Nicolet National Forest.
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P. Freeman Heim. Provided by National Agricultural Library. United States, Wisconsin, Nicolet National Forest.
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R.S. Kellog. Provided by National Agricultural Library. United States, Alaska, Fairbanks North Star Borough, Fairbanks.
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R.K. LeBarron. Provided by National Agricultural Library.
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Provided by National Agricultural Library. United States, District of Columbia, Washington.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection.
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
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Provided by USDA Forest Service.
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USDA NRCS. Provided by NRCS National Wetland Team.
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Robert H. Mohlenbrock. USDA NRCS. Provided by USDA NRCS Wetland Science Institute (WSI).
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United States, District of Columbia, Washington.
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W.D. Brush. Provided by National Agricultural Library. United States, Virginia.
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Bluford W. Muir. Provided by National Agricultural Library. United States, Pennsylvania.