Black, J.M. (1929), Bignoniaceae - Compositae. Flora of South Australia 4: 661-662, Fig. 332 [comb. et stat. nov.]

basionym: Sonchus asper var. megalocarpus Hook.f. legitimate taxonomic synonym: Sonchus asper var. littoralis J.M.Black nom. illeg.

• Comment: Combination also made by J.M.Black in Trans. & Proc. Roy. Soc. South Australia 53 (24 Dec. 1929) 263.

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 943, Fig. 1259 [secondary reference]

nomenclatural synonym: Sonchus asper var. megalocarpus Hook.f. legitimate taxonomic synonym: Sonchus asper var. littoralis J.M.Black nom. illeg.

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 396 [secondary reference]

Curtis, W.M. (1963), Angiospermae: Lythraceae to Epacridaceae. The Student's Flora of Tasmania 2: 390 [secondary reference]

nomenclatural synonym: Sonchus asper var. megalocarpus Hook.f. legitimate

Boulos, L. in Eichler, Hj. (1965), Sonchus and Embergia. Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 333 [nomenclatural synonym]

nomenclatural synonym of: Embergeria megalocarpa (Hook.f.) Boulos legitimate

Lander, N.S. (1976), Actites, A new genus of Compositae from Australia. Telopea 1(2): 130 [nomenclatural synonym]

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

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 71 [nomenclatural synonym]

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

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 596, Fig. 84D [secondary reference]

nomenclatural synonym: Sonchus asper var. megalocarpus Hook.f. legitimate nomenclatural synonym: Embergeria megalocarpa (Hook.f.) Boulos legitimate nomenclatural synonym: Actites megalocarpus (Hook.f.) Lander legitimate misapplication: Sonchus maritimus L. legitimate by Bailey, F.M. (1900), The Queensland Flora 3: 884

Green, J.W. (18 October 1987), Census of the Vascular Plants of Western Australia Edn. 2, Suppl. 5: 15 [nomenclatural synonym]

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

Murray, L. in Harden, G.J. (ed.) (1992), Actities. Flora of New South Wales 3: 339 [nomenclatural synonym]

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

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

nomenclatural synonym: Sonchus asper var. megalocarpus Hook.f. legitimate taxonomic synonym: Embergeria sp. legitimate

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Asteraceae. Flora of Victoria 4: 700 [nomenclatural synonym]

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

Jessup, L.W. (22 April 2002), Flora of South-eastern Queensland Volume 2 Changes to names or status of taxa: - [nomenclatural synonym]

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

Thompson, I.R. (22 May 2007), A taxonomic treatment of tribe Lactuceae (Asteraceae) in Australia. Muelleria 25: 78 [nomenclatural synonym]

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

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

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

Thompson, I.R. in Wilson, A.J.G. (ed.) (2015), Actites. Flora of Australia 37: 122 [nomenclatural synonym]

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

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 23 [nomenclatural synonym]

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

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