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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Texas, Dallas Co., Fort Worth.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Massachusetts, Middlesex Co., Weston.
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Provided by USDA Forest Service.
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Georgia, Harris Co., Callaway Gardens.
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Provided by USDA Forest Service.
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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, California, Los Angeles Co., Rancho Santa Ana.
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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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Clarence A. Rechenthin. Provided by USDA NRCS East Texas PMC (ETPMC). United States, Texas, Bandera Co., Bandera vicinity, N. of town.
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Patrick J. Alexander.
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Patrick J. Alexander.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United States, Texas, Travis Co., Austin.
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Jennifer Anderson. United States, Iowa, Muscatine Co., Muscatine, Wild Cat Den State Park.
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Jennifer Anderson. United States, Iowa, Muscatine Co., Muscatine, Wild Cat Den State Park.
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Clarence A. Rechenthin. Provided by USDA NRCS East Texas PMC (ETPMC).
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.