Echinofossulocactus vanderaeyi var. ignotus-longispinus Lawr. variety synonym

Echinocactus flavovirens Scheidw. species synonym

Ferocactus rhodanthus Fritz Schwarz species synonym

Ferocactus echidne subsp. victoriensis (Rose) Lodé subspecies synonym

Parrycactus alamosanus (Britton & Rose) Doweld species accepted

Parrycactus alamosanus subsp. reppenhagenii (G.Unger) Doweld subspecies synonym

Echinocactus gilvus A.Dietr. species synonym

Echinocactus echidne var. gilvus (A.Dietr.) Salm-Dyck variety synonym

Echinocactus dolichacanthus var. minor Lem. variety synonym

Parrycactus schwarzii (G.E.Linds.) Doweld species accepted

Parrycactus reppenhagenii (G.Unger) Doweld species accepted

Parrycactus flavovirens (Scheidw.) Doweld species accepted

Parrycactus echidne (DC.) Doweld species accepted

Echinocactus alamosanus Britton & Rose species synonym

Bisnaga flavovirens (Scheidw.) Orcutt species synonym

Echinofossulocactus vanderaeyi (Lem.) Lawr. species synonym

Echinofossulocactus echidne (DC.) Lawr. species synonym

Echinocactus victoriensis Rose species synonym

Ferocactus victoriensis (Rose) Backeb. species synonym

Echinocactus vanderaeyi Lem. species synonym

Ferocactus schwarzii G.E.Linds. species synonym

Ferocactus reppenhagenii G.Unger species synonym

Ferocactus rafaelensis (J.A.Purpus) Borg species synonym

Ferocactus pottsii var. alamosanus (Britton & Rose) G.Unger variety synonym

Ferocactus flavovirens (Scheidw.) Britton & Rose species synonym

Ferocactus echidne var. victoriensis (Rose) G.E.Linds. variety synonym

Ferocactus echidne var. rhodanthus G.Unger variety synonym

Ferocactus alamosanus subsp. reppenhagenii (G.Unger) N.P.Taylor subspecies synonym

Ferocactus alamosanus var. platygonus G.E.Linds. variety synonym

Echinocactus rafaelensis J.A.Purpus species synonym

Echinocactus echidne DC. species synonym

Echinocactus dolichacanthus Lem. species synonym

Ferocactus echidne (DC.) Britton & Rose species synonym

Ferocactus alamosanus (Britton & Rose) Britton & Rose species synonym

Echinocactus echidne f. gilvus (A.Dietr.) K.Schum. form synonym