Linnaeus, C. (1 May 1753), Species Plantarum 1: 429 [tax. nov.]

• Type: (not designated).

Linnaeus, C. (1754), Genera Plantarum Edn. 5: 196 [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: 156 & errata [secondary reference]

• Lectotype: Cotyledon orbiculata L.

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 107 [secondary reference]

Everett, J. & Norris, E.H. in Harden, G.J. (ed.) (1990), Crassulaceae. Flora of New South Wales 1: 527 [secondary reference]

Toelken, H.R., Jeanes, J.A. & Stajsic, V. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Crassulaceae. Flora of Victoria 3: 555 [secondary reference]

Everett, J. & Norris, E.H. in Harden, G.J. (ed.) (2000), Crassulaceae. Flora of New South Wales Revised Edition 1: 527 [secondary reference]

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - APC [secondary reference]

• APC Dist.: WA (naturalised), SA (naturalised), NSW (naturalised), Vic (naturalised), Tas (naturalised)

Thiede, J. & Eggli, U. in Kubitzki, K. (ed.) (2007), Crassulaceae. The Families and Genera of Vascular Plants 9: 111 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 223 [secondary reference]

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