Tephrocactus fulvicomus var. bicolor Rauh & Backeb., Descr. Cact. Nov. 1: 9. 1957 ["1956"]
Tephrocactus fulvicomus var. bicolor, Descr. Cact. Nov. 1: 9. 1957 ["1956"]
is basionym for Tephrocactus bicolor in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 1958: 223. 1958