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Ostrya virginiana - Wikipedia
American Hophornbeam | Department of Horticulture
Eastern Hophornbeam - US Forest Service Research and …
Hop-hornbeam | Description, Tree, Bark, Uses, & Facts
Ironwood | The Morton Arboretum
Ostrya virginiana - North Carolina Extension Gardener Plant …
Ostrya virginiana - Plant Finder - Missouri Botanical Garden
Ostrya virginiana (American Hop Hornbeam) - Gardenia
Ostrya - Wikipedia