Ferocactus fordii subsp. borealis N.P.Taylor in Cactaceae Syst. Init. 14: 16. 2002
Ferocactus fordii subsp. borealis in Cactaceae Syst. Init. 14: 16. 2002
Holotype: Mexico, Baja Califormia Norte, Bahia San QuintÃn, initially cultivated by S. Brack, Mesa Garden Nursers (USA), then cult. (ex seed from controllen pollination of former) by D. Bowdery, July 2002, 1984, D.J. Ferguson (K, in spirit)
Ferocactus fordii subsp. borealis in Cactaceae Syst. Init. 14: 16. 2002