Zamiaceae Horan.
Macrozamia spiralis var. eximia Regel , isonym, scientific
Regel, E.A. von (1876), Cycadearum generum specierumque revisio. Acta Horti Petropolitani 4: 318 [tax. nov.]
Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [isonym]
isonym of: Macrozamia spiralis var. eximia Regel legitimate