Cassini, A.H.G. de in Cuvier, F. (ed.) (1825), Dictionnaire des Sciences Naturelles Edn. 2, 35: 170 [comb. et stat. nov.]

basionym: Cirsium subg. Notobasis Cass. legitimate

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Asteraceae. Flora of Victoria 4: 674 [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: 134 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 589 [secondary reference]

Bean, A.R. in Wilson, A.J.G. (ed.) (2015), Asteraceae Subfam. 2. Carduoideae Trib. 1. Cardueae. Flora of Australia 37: 60 [secondary reference]

• Etymology: "from the Greek notos (back) and basis (base), in reference to the position of the carpopodium on the achene."
• Text: "Formerly naturalised in Australia, where its continued existence is very doubtful."

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Cirsium subg. Notobasis Cass. legitimate

• APC Comment: A northern hemisphere taxon recorded from Victoria in 1920-1921, but not known to be established in Australia and subsequently eradicated (A.R.Bean, pers. comm. 2007).

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