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| Kingdom Plantae |
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Frangula Mill. – not accepted – buckthorn
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Frangula alnus Mill. – not accepted – glossy buckthorn, alder buckthorn
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Frangula betulifolia (Greene) Grubov – not accepted – beechleaf buckthorn, beechleaf frangula
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Frangula betulifolia ssp. betulifolia (Greene) Grubov – not accepted – beechleaf frangula, birchleaf buckthorn
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Frangula betulifolia ssp. obovata (Kearney & Peebles) Kartesz & Gandhi – not accepted – ovateleaf buckthorn, obovate buckthorn
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Frangula californica (Eschsch.) A. Gray – not accepted – California buckthorn
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Frangula californica ssp. californica (Eschsch.) A. Gray – not accepted – California buckthorn
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Frangula californica ssp. crassifolia (Jeps.) Kartesz & Gandhi – not accepted – California buckthorn
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Frangula californica ssp. cuspidata (Greene) Kartesz & Gandhi – not accepted – California buckthorn
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Frangula californica ssp. occidentalis (Howell) Kartesz & Gandhi – not accepted – California buckthorn
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Frangula californica ssp. tomentella (Benth.) Kartesz & Gandhi – not accepted – California buckthorn
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Frangula californica ssp. ursina (Greene) Kartesz & Gandhi – not accepted – California buckthorn
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Frangula caroliniana (Walter) A. Gray – not accepted – Carolina buckthorn
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Frangula purshiana (DC.) A. Gray – not accepted – Pursh's buckthorn, Cascara buckthorn
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Frangula purshiana ssp. annonifolia (Greene) Sawyer & S.W. Edwards – not accepted – Cascara buckthorn, Pursh's buckthorn
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Frangula purshiana ssp. ultramafica Sawyer & S.W. Edwards – not accepted – Cascara buckthorn, Pursh's buckthorn
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Frangula rubra (Greene) Grubov – not accepted – red buckthorn
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Frangula rubra ssp. modocensis (C.B. Wolf) Kartesz & Gandhi – not accepted – Modoc buckthorn
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Frangula rubra ssp. nevadensis (A. Nelson) Kartesz & Gandhi – not accepted – Nevada buckthorn
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Frangula rubra ssp. obtusissima (Greene) Kartesz & Gandhi – not accepted – obtuse buckthorn
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Frangula rubra ssp. rubra (Greene) Grubov – not accepted – red buckthorn
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Frangula rubra ssp. yosemitana (C.B. Wolf) Kartesz & Gandhi – not accepted – Yosemite buckthorn
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Frangula sphaerosperma (Sw.) Kartesz & Gandhi – not accepted – West Indian buckthorn
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Frangula sphaerosperma ssp. longipes (M.C. Johnst. & L.A. Johnst.) Kartesz & Gandhi – not accepted – West Indian buckthorn
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Frangula X blumeri (Greene) Kartesz & Gandhi (pro. sp.) – not accepted – Blumer's buckthorn
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Frangulales – not accepted
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Rhamnus frangula L. – accepted – glossy buckthorn, columnar buckthorn, European alder, fen buckthorn, tall hedge buckthorn, alder buckthorn
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Rhamnus frangula var. angustifolia Louden – not accepted |
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