Praecereus euchlorus subsp. smithianus (Britton & Rose) N.P.Taylor in Cactaceae Consensus Init. 3: 10. 1997
Praecereus euchlorus subsp. smithianus in Cactaceae Consensus Init. 3: 10. 1997
is new combination for Cephalocereus smithianus, Cactaceae 2: 37, f. 46–47. 1920
Praecereus euchlorus subsp. smithianus in Cactaceae Consensus Init. 3: 10. 1997