Echinocereus morricalii Říha in Kaktusy (Brno) 11(4): 75. 1974
Echinocereus morricalii in Kaktusy (Brno) 11(4): 75. 1974
is basionym for Echinocereus viereckii subsp. morricalii in Cactaceae Consensus Init. 3: 10. 1997
is basionym for Echinocereus viereckii var. morricalii, Gen. Echinocereus: 93. 1985