Schultes, J.A. in Roemer, J.J. & Schultes, J.A. (1820), Systema Vegetabilium Edn. 16, 6: 733 [tax. nov.]

• Type: "In Prom. b. Spei."

Toelken, H.R. (1977), A Revision of the Genus Crassula in Southern Africa. Contributions from the Bolus Herbarium 8(1): 117 [secondary reference]

• Lectotype: "Cape, Thunberg in herb. Thunberg 7750a (UPS, lecto!; G!)"

Toelken, H.R. (29 April 1981), The species of Crassula L. in Australia. Journal of the Adelaide Botanic Gardens 3(1): 74-75 APC [secondary reference]

• APC Dist.: WA (naturalised)

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 82 [secondary reference]

Wheeler, J.R. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Crassulaceae. Flora of the Perth Region 1: 207 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 568 [secondary reference]

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 68 [secondary reference]

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