Kirk, T. (1899), The Student's Flora of New Zealand: 142 [tax. nov.]

• Type: "South Island: West Coast: Karamea, Rev. F.H. Spenser! Near Greymouth, R. Helms!"

Cockayne, L.C. (1907), Transactions and Proceedings of the New Zealand Institute 39: 349 [basionym]

basionym of: Crassula helmsii (Kirk) Cockayne legitimate

Berger, A. in Engler, H.G.A. & Prantl, K.A.E. (May 1930), Crassulaceae. Die Naturlichen Pflanzenfamilien Edn. 2, 18a: 389 [nomenclatural synonym]

nomenclatural synonym of: Crassula helmsii (Kirk) A.Berger isonym

Curtis, W.M. & Morris, D.I. (1975), Angiospermae: Ranunculaceae to Myrtaceae. The Student's Flora of Tasmania Edn. 2, 1: 185 [nomenclatural synonym]

nomenclatural synonym of: Crassula helmsii (Kirk) Cockayne legitimate

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

nomenclatural synonym of: Crassula helmsii (Kirk) Cockayne legitimate

Toelken, H.R. (29 April 1981), The species of Crassula L. in Australia. Journal of the Adelaide Botanic Gardens 3(1): 68-69 [secondary reference]

• Lectotype: "New Zealand, near Greymouth, Helms s.n. (WELT! Lecto: designated here);"

Toelken, H.R., Jeanes, J.A. & Stajsic, V. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Crassulaceae. Flora of Victoria 3: 544 [nomenclatural synonym]

nomenclatural synonym of: Crassula helmsii (Kirk) Cockayne legitimate

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Crassula helmsii (Kirk) Cockayne legitimate

Council of Heads of Australasian Herbaria (2014), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Crassula helmsii (Kirk) Cockayne legitimate

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