Echinocactus villosus var. niger A.Berger, Kakteen: 201. 1929
Echinocactus villosus var. niger, Kakteen: 201. 1929
is basionym for Chileniopsis villosa var. nigra, Cacti, ed. 2: 81. 1952
Echinocactus villosus var. niger, Kakteen: 201. 1929
Taxon for this name