Rodd, A.N. in Recher, H.F. & Clark, S.S. (ed.) (1974), Environmental Survey of Lord Howe Island: 25 [primary reference]

Green, P.S. in Wilson, A.J.G. (ed.) (1994), Norfolk Island & Lord Howe Island. Flora of Australia 49: 373 [taxonomic synonym]

taxonomic synonym of: Sonchus megalocarpus (Hook.f.) J.M.Black legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Actites megalocarpus (Hook.f.) Lander legitimate

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