Ferocactus viridescens var. littoralis G.E.Linds. in Cact. Succ. J. (Los Angeles) 36: 8. 1964
Ferocactus viridescens var. littoralis in Cact. Succ. J. (Los Angeles) 36: 8. 1964
is basionym for Ferocactus viridescens subsp. littoralis, Ferokakt. Baja California: 207. 2004