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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, Massachusetts, Suffolk Co., Boston, Arnold Arboretum.
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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. Italy, Grand Paradiso.
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Patrick J. Alexander.
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Patrick J. Alexander.
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Patrick J. Alexander.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, Colorado, Larimer Co., Estes Park.
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
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Provided by Smithsonian Institution, Department of Botany.
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Provided by Smithsonian Institution, Department of Botany.
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Provided by Smithsonian Institution, Department of Botany.
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Provided by Smithsonian Institution, Department of Botany.
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Provided by Smithsonian Institution, Department of Botany.
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
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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, Ohio, Trumbull Co., Warren.
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Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.