Ferocactus chrysacanthus (Orcutt) Britton & Rose species accepted

Ferocactus cylindraceus (Engelm.) Orcutt species accepted

Ferocactus diguetii (F.A.C.Weber) Britton & Rose species accepted

Ferocactus emoryi (Engelm.) Orcutt species accepted

Ferocactus johnstonianus Britton & Rose species accepted

Ferocactus latispinus (Haw.) Britton & Rose species accepted

Ferocactus lindsayi Bravo species accepted

Ferocactus mathssonii (Berge ex K.Schum.) N.P.Taylor species accepted

Ferocactus wislizeni (Engelm.) Britton & Rose species accepted

Ferocactus uncinatus (Galeotti) Britton & Rose species accepted

Ferocactus pilosus (Salm-Dyck) Werderm. species accepted

Ferocactus pottsii (Salm-Dyck) Backeb. species accepted

Ferocactus fordii (Orcutt) Britton & Rose species accepted

Ferocactus peninsulae (F.A.C.Weber) Britton & Rose species accepted

Ferocactus robustus (Karw. ex Pfeiff.) Britton & Rose species accepted

Ferocactus gracilis H.E.Gates species accepted

Ferocactus viridescens (Torr. & A.Gray) Britton & Rose species accepted

Ferocactus townsendianus Britton & Rose species accepted

Ferocactus macrodiscus (Matt.) Britton & Rose species accepted

Ferocactus santa-maria Britton & Rose species accepted