Cereus ctenoides Engelm. in Proc. Amer. Acad. Arts 3: 279. 1856
Cereus ctenoides in Proc. Amer. Acad. Arts 3: 279. 1856
is basionym for Echinocereus dasyacanthus subsp. ctenoides in Cact.-Avent. Int. 100: 29. 2013
is basionym for Echinocactus ctenoides, Cactées: 57. 1868
is basionym for Echinocereus pectinatus subsp. ctenoides in Echinocereenfreund 10: 135. 1997
is basionym for Echinocereus pectinatus var. ctenoides in Kakteen And. Sukk. 42: 140. 1991
is basionym for Echinocereus ctenoides, Handb. Cacteenk., ed. 2, 2(16): 819. 1886
is basionym for Echinocereus dasyacanthus var. ctenoides, Cactaceae 4: 2021. 1960