L. principis is one of the most distinctive, and fascinating cacti with long glaucous-green tubercles, tipped by equally long papery spines, it is unlike anything else. It is slow-growing and has a tuberous root.
Ferobergia is made by crossing Ferocactus and Leuchtenbergia. Back cross means that a Ferobergia has been pollinated back with a Ferocactus. These hybrids look more like Ferocactus, with short tubercles and hooked spines. They are quite variable.
Ferobergia is a horticultural intergeneric hybrid, made by crossing of a Ferocactus as a female and a Leuchtenbergia principis as a male. These hybrids are very variable, due to the intersection of characters deriving from the parents.
Quite variable, Ferobergia is made by crossing Ferocactus and Leuchtenbergia. Back cross means that a Ferobergia has been pollinated back with a Leuchtembergia. These hybrids look like a compact Leuctenbergia with shorter tubercles and papery spines.
