Echinocactus lecontei var. albispinus Kuhlm. variety synonym

Echinocactus lecontei var. hagei Miq. variety synonym

Ferocactus cylindraceus subsp. lecontei (Engelm.) Britton & Rose subspecies accepted

Echinocactus cylindraceus subsp. chrysacanthus Schelle subspecies synonym

Echinocactus acanthodes var. rostii (Britton & Rose) W.T.Marshall, 1941 variety synonym

Ferocactus acanthodes subsp. lecontei (Engelm.) Lodé subspecies synonym

Ferocactus acanthodes subsp. rostii (Britton & Rose) Lodé subspecies synonym

Ferocactus acanthodes subsp. eastwoodiae (L.D.Benson) Lodé subspecies synonym

Echinocactus hertrichii Weinberg ex Werderm. species synonym

Ferocactus gracilis subsp. tortulispinus (H.E.Gates) Lodé subspecies synonym

Echinocactus acanthoides var. rostii (Britton & Rose) Munz variety synonym

Ferocactus acanthoides var. rostii (Britton & Rose) W.T.Marshall variety synonym

Ferocactus acanthoides subsp. tortulispinus (H.E.Gates) F.Wolf & R.Wolf subspecies synonym

Ferocactus acanthoides var. tortulispinus (H.E.Gates) G.E.Linds. variety synonym

Ferocactus acanthoides var. lecontei (Engelm.) G.E.Linds. variety synonym

Echinocactus leopoldii É.Morren species synonym

Echinocactus lecontei Engelm. species synonym

Echinocactus hertrichii Weinberg species synonym

Echinocactus cylindraceus (Engelm.) Engelm. species proparte synonym

Echinocactus acanthodes var. rostii (Britton & Rose) Munz variety synonym

Thelocactus hertrichii (Weinberg) Borg species synonym

Echinocactus wislizeni f. lecontei (Engelm.) Schelle form synonym

Echinocactus viridescens var. cylindraceus Engelm. variety synonym

Ferocactus tortulispinus H.E.Gates species synonym

Ferocactus rostii Britton & Rose species synonym

Ferocactus lecontei (Engelm.) Britton & Rose species synonym

Ferocactus eastwoodiae (L.D.Benson) L.D.Benson species synonym

Ferocactus cylindraceus subsp. tortulispinus (H.E.Gates) N.P.Taylor subspecies accepted

Ferocactus cylindraceus var. lecontei (Engelm.) Bravo variety synonym

Ferocactus cylindraceus var. eastwoodiae (L.D.Benson) N.P.Taylor variety synonym

Ferocactus cylindraceus var. chrysacanthus (Schelle) Y.Itô variety synonym

Ferocactus acanthodes subsp. tortulispinus (H.E.Gates) F.Wolf & R.Wolf subspecies synonym

Ferocactus acanthodes var. rostii (Britton & Rose) W.T.Marshall & Bock variety synonym

Ferocactus acanthodes var. lecontei (Engelm.) G.E.Linds. variety synonym

Ferocactus acanthodes var. eastwoodiae L.D.Benson variety synonym

Echinocactus rostii (Britton & Rose) A.Berger species synonym

Ferocactus cylindraceus subsp. cylindraceus subspecies accepted

Ferocactus acanthodes var. acanthodes variety synonym

Echinocactus acanthodes Lem. species synonym

Echinocactus wislizeni var. lecontei (Engelm.) Engelm. variety synonym

Ferocactus cylindraceus var. tortulispinus (H.E.Gates) Bravo variety synonym

Ferocactus cylindraceus subsp. lecontei (Engelm.) N.P.Taylor subspecies synonym

Ferocactus cylindraceus subsp. eastwoodiae (L.D.Benson) N.P.Taylor subspecies accepted

Ferocactus acanthodes var. tortulispinus (H.E.Gates) G.E.Linds. variety synonym