Discocactus zehntneri subsp. mirohalfarii Zachar in Kaktusy (Brno) 57(4): 51. 2021
Discocactus zehntneri subsp. mirohalfarii in Kaktusy (Brno) 57(4): 51. 2021
Type: Brazil, Piauí, northern part of the state, Rio Poty, alt. 190 m, M. Halfar (UB: UB217307)