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Wisflora - Vascular Plant Species

University of  Wisconsin - Madison 

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Family: Betulaceae
  Genus: Corylus

    Corylus americana Walter*+

        American hazelnut
             Corylus americana Walter f. missouriensis (A.DC.) Fernald
             Corylus americana Walter var. altior Fernald
             Corylus americana Walter var. indehiscens E.J.Palmer & Steyerm.
             Corylus americana Walter var. missourensis A.DC.
    Corylus cornuta Marshall
        beaked hazelnut
    Corylus cornuta Marshall subsp. cornuta*+

        beaked hazelnut
             Corylus cornuta Marshall var. cornuta
             Corylus cornuta Marshall var. megaphylla Vict. & J.Rousseau
             Corylus rostrata Aiton

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