Linnaeus, C. (1 May 1753), Species Plantarum 2: 792 [tax. nov.]

• Type: (not designated).

Linnaeus, C. (1754), Genera Plantarum Edn. 5: 347 [secondary reference]

Brown, R. in Flinders, M. (1814), General remarks, geographical and systematical, on the Botany of Terra Australis. A Voyage to Terra Australis 2, Appendix III: - [secondary reference]

Steudel, E.G. von (1841), Nomenclator Botanicus Edn. 2, 2(10): 333 [secondary reference]

• Type: Picris hieracioides L.

Bentham, G. (5 January 1867), Orders XLVIII. Myrtaceae- LXII. Compositae. Flora Australiensis 3: 677 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 276 [secondary reference]

common name: Ox-tongue [n/a]

Black, J.M. (1929), Bignoniaceae - Compositae. Flora of South Australia 4: 659 [secondary reference]

• Etymology: "Greco-Latin name of some plant resembling leetuce and with a bitter taste, from Greek pikros, bitter."

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 940 [secondary reference]

• Etymology: "Greco-Latin name of some plant resembling leetuce and with a bitter taste, from Greek pikros, bitter."

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: 382-383 [secondary reference]

Burbidge, N.T. & Gray, M. (1970), Flora of the Australian Capital Territory: 402 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 84 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 589-590 [secondary reference]

Lander, N.S. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Asteraceae. Flora of the Perth Region 2: 696 [secondary reference]

Murray, L. & Brown, E.A in Harden, G.J. (ed.) (1992), Picris. Flora of New South Wales 3: 334 [secondary reference]

Holzapfel, S. (1994), A revision of the genus Picris (Asteraceae, Lactuceae) s.l. in Australia. Willdenowia 24: 124-125 [secondary reference]

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Asteraceae. Flora of Victoria 4: 703 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 518 [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: 197, Fig. 48 [secondary reference]

Thompson, I.R. (22 May 2007), A taxonomic treatment of tribe Lactuceae (Asteraceae) in Australia. Muelleria 25: 93-94 APC [secondary reference]

• APC Dist.: WA, SA, Qld, NSW, NI, ACT, Vic, Tas

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 665 [secondary reference]

Holzapfel, S. in Wilson, A.J.G. (ed.) (2015), Picris. Flora of Australia 37: 143-145 [secondary reference]

• Etymology: "from the Greek picros (bitter), in reference to the bitter taste of at least some members of this genus."

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