Discocactus catingicola subsp. rapirhizus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993
Discocactus catingicola subsp. rapirhizus in Kakteen And. Sukk. 44: 112. 1993
is new combination for Discocactus rapirhizus in Ashingtonia 2: 44. 1975