Subspecies, varieties, forms and cultivars of plants belonging to the Ferocactus fordii group

• Ferocactus fordii (Orcutt) Britton & Rose: The plants in circulation and labelled F. fordii are now named var. borealis, which means northerly. The proper F. Fordii is quite a sight since it has much longer spines.
• Ferocactus fordii subs. borealis N.P.Taylor: It occurs one third of the way down the Baja peninsula, near the coast and near the road. It is fully grown at 20 cm in diameter.
• Ferocactus fordii var. brevispinus n.n., catalog name: is a cultivated form with comparatively shorter spines.