Echinocereus pectinatus subsp. ctenoides (Engelm.) G.Frank in Echinocereenfreund 10: 135. 1997
Echinocereus pectinatus subsp. ctenoides in Echinocereenfreund 10: 135. 1997
is new combination for Cereus ctenoides in Proc. Amer. Acad. Arts 3: 279. 1856