Gymnocalycium mostii subsp. ferocior Backeb. ex H.Till & Amerh. in Gymnocalycium 15: 435. 2002
Gymnocalycium mostii subsp. ferocior in Gymnocalycium 15: 435. 2002
is basionym for Gymnocalycium castellanosii subsp. ferocior in Cactaceae Syst. Init. 20: 18. 2005
is basionym for Gymnocalycium ferox in Kaktusy (Brno) 20: 80. 1984
Type: Argentina, Córdoba, Agua de Ramon, H. Borth s.n. (CORD)