Echinocactus haematacanthus Monv., 1896 species synonym

Echinocactus longihamatus var. insignis F.A.C.Weber variety synonym

Hamatocactus hamatacanthus subsp. sinuatus (A.Dietr.) Lodé subspecies synonym

Hamatocactus hamatacanthus var. davisii (Houghton & C.A.Armstr.) W.T.Marshall variety synonym

Echinocactus longihamatus f. sinuatus (A.Dietr.) Schelle form synonym

Echinocactus longihamatus f. brevispinus (Engelm.) Schelle form synonym

Echinocactus uncinatus Engelm. ex Scheer species heterotypic synonym

Ferocactus hamatacanthus var. sinuatus (A.Dietr.) L.D.Benson variety synonym

Ferocactus hamatacanthus var. hamatacanthus variety synonym

Echinocactus longihamatus Galeotti ex Pfeiff. species synonym

Bisnaga hamatacantha subsp. hamatacantha subspecies accepted

Ferocactus hamatacanthus subsp. hamatacanthus subspecies synonym

Echinocactus hamatacanthus var. brevispinus (Engelm.) J.M.Coult. variety synonym

Echinocactus gerardii F.A.C.Weber species synonym

Echinocactus longihamatus var. sinuatus (A.Dietr.) F.A.C.Weber ex K.Schum. variety synonym

Echinocactus longihamatus var. gracilispinus Engelm. variety synonym

Echinocactus longihamatus var. crassispinus Engelm. variety synonym

Echinocactus longihamatus var. brevispinus Engelm. variety synonym

Echinocactus longehamatus var. crassispinus Engelm. variety synonym

Echinocactus hamatacanthus Muehlenpf. species synonym

Echinocactus haematochroanthus Hemsl. species synonym

Brittonia davisii Houghton & C.A.Armstr. species synonym

Hamatocactus sinuatus (A.Dietr.) Orcutt species synonym

Hamatocactus hamatacanthus (Muehlenpf.) F.M.Knuth species synonym

Bisnaga hamatacantha subsp. sinuata (A.Dietr.) Doweld subspecies accepted

Bisnaga haematacantha subsp. sinuata (A.Dietr.) Doweld subspecies synonym

Ferocactus hamatacanthus subsp. sinuatus (A.Dietr.) N.P.Taylor subspecies synonym

Ferocactus hamatacanthus var. crassispinus (Engelm.) L.D.Benson variety synonym

Echinocactus sinuatus A.Dietr. species synonym

Echinocactus setispinus var. sinuatus (A.Dietr.) Poselg. variety synonym

Ferocactus haematacanthus var. sinuatus (A.Dietr.) L.D.Benson variety synonym

Ferocactus hamatacanthus (Muehlenpf.) Britton & Rose species synonym

Echinocactus setispinus var. longihamatus (Galeotti ex Pfeiff.) Poselg. variety synonym

Echinocactus hamatacanthus var. longihamatus (Galeotti ex Pfeiff.) J.M.Coult. variety synonym

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

Echinocactus longihamatus var. deflexispinus F.A.C.Weber variety synonym

Echinocactus uncinatus Engelm. species homotypic synonym

Echinocactus longihamatus var. sinuatus (A.Dietr.) F.A.C.Weber variety homotypic synonym