Moench, C. (1794), Methodus Plantas Horti Botanici et Agri Marburgensis: 516 [tax. nov.]

• Type: Crassocephalum cernuum (L.) Moench (nom. illeg.)

Everist, S.L. (1960), Two new records of plant pests. Proceedings of the Royal Society of Queensland 71: v. [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 76 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 572 [secondary reference]

Harden, G.J. in Harden, G.J. (ed.) (1992), Crassoceplalum. Flora of New South Wales 3: 297 [secondary reference]

Du Puy, D.J., Telford, I.R.H. & Orchard, A.E. (1993), Asteraceae. Flora of Australia 50: 425 [secondary reference]

Green, P.S. in Wilson, A.J.G. (ed.) (1994), Norfolk Island & Lord Howe Island. Flora of Australia 49: 396 [secondary reference]

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 81 [secondary reference]

Thompson, I.R. (22 November 2006), A taxonomic treatment of tribe Senecioneae (Asteraceae) in Australia. Muelleria 24: 102 [secondary reference]

Anderberg, A.A., Baldwin, B.G., Bayer, R.G., Breitwieser, I., Jeffrey, C., Dillon, M.O., Eldenäs, P., Funk, V., Garcia-Jacas, N., Hind, D.J.N., Karis, P.O., Lack, H.W., Nesom, G., Nordenstam, B., Oberprieler, C., Panero, J.J., Puttock, C., Robinson, H., Stuessy, T.F., Susanna, A., Urtubey, E., Vogt, R., Ward, J. & Watson, L.E. in Kubitzki, K. (ed.) (2007), Compositae. The Families and Genera of Vascular Plants 8: 232 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 225 [secondary reference]

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - APC [secondary reference]

orthographic variant: Crossocephalum Britten orth. var.

• APC Dist.: ChI (naturalised), Qld (naturalised), NSW (naturalised), NI (naturalised)

Thompson, I.R. in Wilson, A.J.G. (ed.) (2015), Crassocephalum. Flora of Australia 37: 311 [secondary reference]

• Etymology: "from the Latin crassus (thick) and the Greek kephale (a head), alluding to the broad capitulum in the type species."

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