Echinocereus davisii Houghton in J. Cact. Succ. Soc. Amer. 2: 466. 1931
Echinocereus davisii in J. Cact. Succ. Soc. Amer. 2: 466. 1931
is basionym for Echinocereus viridiflorus subsp. davisii in Cactaceae Consensus Init. 3: 10. 1997
Echinocereus davisii in J. Cact. Succ. Soc. Amer. 2: 466. 1931