Cassini, A.H.G. de (May 1831), Descriptons de quelques Synanthérées de l'ile Maurice. Annales des Sciences Naturelles 23: 88 [tax. nov.]

• Type: (not designated).

Hooker, J.D. (29 December 1859), Introductory Essay. The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 2(11): xlv. [secondary reference]

Bentham, G. (5 January 1867), Orders XLVIII. Myrtaceae- LXII. Compositae. Flora Australiensis 3: 678 [taxonomic synonym]

taxonomic synonym of: Crepis L. legitimate

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 85 [taxonomic synonym]

taxonomic synonym of: Crepis L. legitimate

Koster, J.T. (1976), The Compositae of New Guinea V. Blumea 23(1): 166-167 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 88 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 590 [secondary reference]

Murray, L. in Harden, G.J. (ed.) (1992), Youngia. Flora of New South Wales 3: 341 [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: 187 [secondary reference]

Thompson, I.R. (22 May 2007), A taxonomic treatment of tribe Lactuceae (Asteraceae) in Australia. Muelleria 25: 69-70 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 918 [secondary reference]

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

• APC Dist.: Qld, NSW

Thompson, I.R. in Wilson, A.J.G. (ed.) (2015), Youngia. Flora of Australia 37: 113 [secondary reference]

• Etymology: "derivation unknown."

Burkhardt, L. (2016), About some eponyms in Taxonomic literature (TL-2). Taxon 65(1): 137, 144 [secondary reference]

• Etymology: "Very likely Edward Young (1683-1765) prolific English poet, author and Thomas Young (1773-1829), English ophthalmologist, physicist, linguist, Egyptologist..."

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