Linnaeus, C. (1 May 1753), Species Plantarum 2: 1040 [primary reference]

• Type: (not designated).

Linnaeus, C. (1754), Genera Plantarum Edn. 5: 462 [secondary reference]

Mueller, F.J.H. von (1858), Botanical report on the north-Australian expedition under the command of A.C. Gregory Esq. Journal of the Proceedings of the Linnean Society, Botany 2: 141 [secondary reference]

Green, M.L. in Ramsbottom, J., Wilmott, A.J., Wakefield, E.M. & Sprague, T.A. (ed.) (August 1929), The application of Linnean generic names to be determined by means of specified Standard-species. Nomenclature: Proposals by British Botanists: 192 [secondary reference]

• Type: Ephedra distachya L.

Messina, A. in National Herbarium of Victoria (2014), VicFlora: Flora of Victoria: - APC [secondary reference]

• APC Dist.: Vic (formerly naturalised)

---