Echinocereus acifer var. tenuispinus Jacobi variety synonym

Echinocereus acifer subsp. ventanensis W.Rischer subspecies synonym

Echinocereus acifer var. durangensis K.Schum. variety synonym

Echinocereus acifer var. diversispinus K.Schum. variety synonym

Echinocereus triglochidiatus subsp. huitcholensis (F.A.C.Weber) U.Guzmán subspecies synonym

Echinocereus triglochidiatus subsp. acifer (Otto ex Salm-Dyck) U.Guzmán subspecies synonym

Echinocereus topiensis W.Rischer & Trocha species synonym

Echinocereus polyacanthus var. huitcholensis (F.A.C.Weber) N.P.Taylor variety synonym

Echinocereus polyacanthus var. densus (Regel) N.P.Taylor variety synonym

Echinocereus polyacanthus subsp. acifer (Otto ex Salm-Dyck) N.P.Taylor subspecies synonym

Echinocereus matthesianus Backeb. species synonym

Echinocereus marksianus Fritz Schwarz species synonym

Echinocereus huitcholensis (F.A.C.Weber) M.Gürke species synonym

Echinocereus acifer subsp. tubiflorus W.Rischer subspecies synonym

Echinocereus acifer var. trichacanthus Hildm. variety synonym

Echinocereus acifer subsp. topiensis (W.Rischer & Trocha) W.Rischer subspecies synonym

Echinocereus acifer subsp. huitcholensis (F.A.C.Weber) Mich.Lange subspecies accepted

Echinocereus acifer (Otto ex Salm-Dyck) Lem. species heterotypic synonym

Echinocereus acifer subsp. acifer subspecies accepted

Echinocereus acifer var. brevispinulus Jacobi variety synonym

Echinopsis valida var. densa Regel variety synonym

Cereus huitcholensis F.A.C.Weber species synonym

Cereus acifer Otto ex Salm-Dyck species synonym

Cereus acifer Otto species homotypic synonym

Echinocereus triglochidiatus var. acifer (Otto ex Salm-Dyck) Bravo variety synonym

Echinocereus polyacanthus subsp. huitcholensis (F.A.C.Weber) N.P.Taylor subspecies synonym