Linnaeus, C. (1 May 1753), Species Plantarum 2: 900 [tax. nov.]

• Type: Tridax procumbens L.

Linnaeus, C. (1754), Genera Plantarum Edn. 5: 382 [secondary reference]

Bailey, F.M. (1912), Botany. Contributions to the Flora of Queensland. Queensland Agricultural Journal 29(6): 484 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 87 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 563 [secondary reference]

Murray, L. in Harden, G.J. (ed.) (1992), Tridax. Flora of New South Wales 3: 280 [secondary reference]

Wilson, A.J.G. in Wheeler, J.R. (ed.) (1992), Minuria - Xanthium. Flora of the Kimberley Region: 957 [secondary reference]

Du Puy, D.J., Telford, I.R.H. & Orchard, A.E. (1993), Asteraceae. Flora of Australia 50: 422-423 [secondary reference]

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 84 [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: 481-482, Fig. 98 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 870 [secondary reference]

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

• APC Dist.: WA (naturalised), CoI (naturalised), ChI (naturalised), NT (naturalised), Qld (naturalised), CSI (naturalised), NSW (naturalised)

Orchard, A.E. in Wilson, A.J.G. (ed.) (2015), Asteraceae Subfam. Asteroideae Trib. 12. Millerieae. Flora of Australia 37: 573 [secondary reference]

• Etymology: "from the Greek name Thridax for lettuce (Lactuca sativa)."

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