Which Encephalartos species?

Which Encephalartos species?

Observation - Which Encephalartos species? - Southern Africa. Description: From the prongs on the leaves, I thought this may be Encephalartos ferox. The prongs are not as uni

From the prongs on the leaves, I thought this may be Encephalartos ferox. The prongs are not as uniform on all the leaves as on other E. ferox individuals I've seen. It may be a garden hybrid, but I suspect that if it is not E. ferox, it must be either E. lebomboensis, E. senticosus or E. natalensis? It may not be any of the species I mentioned. Can an expert with more experience and knowledge on SA cycads please help with an ID?