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Alnus glutinosa (L.) Gaertn. (European black alder), leaves2005 – 2012
Hagstrom, John
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Alnus glutinosa (L.) Gaertn. (European black alder), branches 2005 – 2012
Hagstrom, John
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Alnus japonica (Thunb.) Steud. (Japanese alder), fruit and catkins2005 – 2012
Hagstrom, John
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Betula alleghaniensis Britton (yellow birch), leaves and female catkins 2005 – 2012
Hagstrom, John
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Betula nigra 'Little King' (FOX VALLEY® river birch), habit2005 – 2012
Hagstrom, John
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Alnus glutinosa 'Pyramidalis' (Pyramidal European black alder), catkins2005 – 2012
Hagstrom, John
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Alnus glutinosa (L.) Gaertn. (European black alder), branches, leaves, and fruit 2005 – 2012
Hagstrom, John
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Alnus glutinosa (L.) Gaertn. (European black alder), catkins2005 – 2012
Hagstrom, John
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Alnus maritima (Marsh.) Muhl. (seaside alder), leaves, fruit, and catkins 2005 – 2012
Hagstrom, John
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Alnus maritima (Marsh.) Muhl. (seaside alder), leaves and catkins on branches2005 – 2012
Hagstrom, John
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Betula nigra 'Little King' (FOX VALLEY® river birch), trunk 2005 – 2012
Hagstrom, John
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Collecting Ostrya carpinifolia Scop. (European hop-hornbeam)August 31 2016
Lobdell, Matt
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Alnus glutinosa 'Pyramidalis' (Pyramidal European black alder), fruit2005 – 2012
Hagstrom, John
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Alnus glutinosa (L.) Gaertn. (European black alder), twigs with leaves, catkins, and fruit2005 – 2012
Hagstrom, John
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Alnus glutinosa (L.) Gaertn. (European black alder), leaves 2005 – 2012
Hagstrom, John
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Alnus maritima (Marsh.) Muhl. (seaside alder), fruit and leaves2005 – 2012
Hagstrom, John
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Betula alleghaniensis Britton (yellow birch), bark, trunk2005 – 2012
Hagstrom, John
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Betula nigra 'Little King' (FOX VALLEY® river birch), leaves2005 – 2012
Hagstrom, John