Echinocereus adustus subsp. schwarzii (A.B.Lau) N.P.Taylor in Cactaceae Consensus Init. 3: 8. 1997
Echinocereus adustus subsp. schwarzii in Cactaceae Consensus Init. 3: 8. 1997
is new combination for Echinocereus schwarzii in Cact. Succ. J. (Los Angeles) 54(1): 28. 1982
Echinocereus adustus subsp. schwarzii in Cactaceae Consensus Init. 3: 8. 1997