Echinocactus bicolor var. montemorelanus F.A.C.Weber variety synonym

Echinocactus bicolor Galeotti ex Pfeiff. species synonym

Echinocactus bicolor f. tricolor (K.Schum.) Schelle form synonym

Echinocactus bicolor f. bolaensis (Runge) Schelle form synonym

Thelocactus bicolor subsp. schwarzii (Backeb.) N.P.Taylor subspecies accepted

Thelocactus bicolor var. flavidispinus Backeb. variety synonym

Thelocactus bicolor var. commodus R.Haas variety synonym

Thelocactus bicolor var. bolaensis (Runge) F.M.Knuth variety synonym

Echinocactus heterochromus F.A.C.Weber species synonym

Echinocactus bolaensis Runge species synonym

Echinocactus bicolor var. typicus Gürke variety synonym

Echinocactus bicolor var. tricolor K.Schum. variety synonym

Echinocactus bicolor var. schottii Engelm. variety synonym

Echinocactus bicolor var. bolaensis (Runge) K.Schum. variety synonym

Thelocactus wagnerianus (A.Berger) A.Berger species synonym

Thelocactus schwarzii Backeb. species synonym

Thelocactus schottii (Engelm.) Kladiwa & Fittkau species synonym

Thelocactus heterochromus (F.A.C.Weber) Oosten species synonym

Thelocactus flavidispinus (Backeb.) Backeb. species synonym

Thelocactus bicolor subsp. zwakii Chvastek & Halda subspecies synonym

Thelocactus bicolor var. wagnerianus (A.Berger) Krainz variety synonym

Thelocactus bicolor var. tricolor (K.Schum.) F.M.Knuth variety synonym

Thelocactus bicolor var. texensis Backeb. variety synonym

Thelocactus bicolor subsp. swobodae Halda & Horácek subspecies synonym

Thelocactus bicolor var. schwarzii (Backeb.) E.F.Anderson variety synonym

Thelocactus bicolor var. schottii (Engelm.) Krainz variety synonym

Thelocactus bicolor subsp. heterochromus (F.A.C.Weber) Mosco & Zanov. subspecies accepted

Thelocactus bicolor subsp. flavidispinus (Backeb.) N.P.Taylor subspecies accepted

Thelocactus bicolor subsp. commodus (R.Haas) Doweld subspecies synonym

Thelocactus bicolor var. bolansis (K.Schum.) F.M.Knuth variety accepted

Thelocactus bicolor subsp. bolaensis (Runge) Doweld subspecies accepted

Echinocactus wagnerianus A.Berger species synonym

Echinocactus tricolor (K.Schum.) Schelle species synonym

Ferocactus heterochromus (F.A.C.Weber) N.P.Taylor species synonym

Ferocactus bicolor var. schwarzii (Backeb.) N.P.Taylor variety synonym

Ferocactus bicolor var. flavidispinus (Backeb.) N.P.Taylor variety synonym

Ferocactus bicolor var. bolaensis (Runge) N.P.Taylor variety synonym

Echinocactus schottii (Engelm.) Small species synonym

Hamatocactus bicolor (Terán & Berland.) I.M.Johnst. species proparte synonym

Echinocactus bicolor Galeotti species homotypic synonym

Thelocactus bicolor var. bolaensis (Runge) A.Berger variety synonym

Thelocactus bicolor subsp. bicolor subspecies accepted

Ferocactus bicolor (Galeotti ex Pfeiff.) N.P.Taylor species synonym