Echinocereus stramineus var. occidentalis N.P.Taylor in Bradleya 6: 70. 1988
Echinocereus stramineus var. occidentalis in Bradleya 6: 70. 1988
is basionym for Echinocereus occidentalis in Echinocereenfreund 22: 23. 2008 ["2009"]
is basionym for Echinocereus stramineus subsp. occidentalis in Cactaceae Consensus Init. 3: 10. 1997