Ferocactus rostii Britton & Rose, Cactaceae 3: 146. 1922
Ferocactus rostii, Cactaceae 3: 146. 1922
is basionym for Ferocactus acanthodes subsp. rostii in Cact.-Avent. Int. 98(Suppl.): 4. 2013
is basionym for Echinocactus acanthodes var. rostii, Man. S. Calif. Bot.: 328. 1935
is basionym for Ferocactus acanthodes var. rostii in Marshall & Bock, Cactaceae: 148. 1941
is basionym for Echinocactus rostii, Kakteen: 340. 1929