Malacocarpus maassii (Heese) Britton & Rose, Cactaceae 3: 202. 1922
Malacocarpus maassii, Cactaceae 3: 202. 1922
is new combination for Echinocactus maassii in Gartenflora 56: 410. 1907
Malacocarpus maassii, Cactaceae 3: 202. 1922
Taxon for this name