Discocactus boomianus Buining & Brederoo in Succulenta (Netherlands) 50: 26. 1971
Discocactus boomianus in Succulenta (Netherlands) 50: 26. 1971
is basionym for Discocactus zehntneri subsp. boomianus in Bradleya 9: 86. 1991
is basionym for Discocactus zehntneri var. boomianus in Succulenta (Netherlands) 69: 218. 1990