Discocactus cephaliaciculosus subsp. nudicephalus P.J.Braun & Esteves in Kakteen And. Sukk. 46: 63. 1995
Discocactus cephaliaciculosus subsp. nudicephalus in Kakteen And. Sukk. 46: 63. 1995
is basionym for Discocactus diersianus subsp. nudicephalus in Cactology 5 (Suppl. 8): 2. 2020