Thelocactus conothelos var. argenteus Glass & R.A.Foster in Cact. Succ. J. (Los Angeles) 44(2): 48. 1972
Thelocactus conothelos var. argenteus in Cact. Succ. J. (Los Angeles) 44(2): 48. 1972
is basionym for Thelocactus conothelos subsp. argenteus, Guía Identific. Cact. Amenazadas México: Th/con. 1997 ["1998"]
is basionym for Torreycactus conothelos subsp. argenteus in Sukkulenty 3: 37. 2000
is basionym for Torreycactus conothelos var. argenteus in Sukkulenty 1(1): 19. 1998