| | Species and varieties
Rhamnus alaterna (Alaterne, Italian Buckthorn)
Rhamnus alaternus (Alaterne, Italian Buckthorn)
Rhamnus cathartica (Common Buckthorn
Common Buckthorn)
Rhamnus crocea (Redberry Buckthorn)
Rhamnus ilicifolia (Hollyleaf Redberry Buckthorn)
Rhamnus californica synonym of Frangula californica ssp. californica (Coffeeberry)
Rhamnus crocea ssp. ilicifolia synonym of Rhamnus ilicifolia (Hollyleaf Redberry Buckthorn)
Rhamnus ferreus synonym of Krugiodendron ferreum (leadwood)
Rhamnus frangula synonym of Frangula alnus (Alder Buckthorn)
Rhamnus frangula synonym of Frangula alnus (Alder Buckthorn, Glossy Buckthorn)
Rhamnus frangula var. angustifolia synonym of Frangula alnus (Alder Buckthorn)
Rhamnus purshiana synonym of Frangula purshiana (Cascara Sagrada)
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