WISCONSIN BOTANICAL INFORMATION SYSTEM
Wisconsin State Herbarium

Wisflora - Vascular Plant Species

University of  Wisconsin - Madison 

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Family: Rhamnaceae
  Genus: Rhamnus

    Rhamnus alnifolia L'Hér.*+

        alder buckthorn, alder-leaf buckthorn
    Rhamnus cathartica L.*+

        common buckthorn, European buckthorn
    Rhamnus frangula L.*+

        European alder buckthorn, glossy buckthorn
             Frangula alnus Mill.
             Rhamnus frangula L. f. angustifolia (Loudon) Schelle
             Rhamnus frangula L. var. angustifolia Loudon
    Rhamnus lanceolata Pursh
        lance-leaved buckthorn
    Rhamnus lanceolata Pursh subsp. lanceolata
        lance-leaved buckthorn
    Rhamnus lanceolata Pursh var. glabrata Gleason+

        lance-leaved buckthorn
             Rhamnus lanceolata Pursh subsp. glabrata

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