Willdenow, C.L. (1803), Species Plantarum Edn. 4, 3(3): 1496 [comb. nov.]

basionym: Tragopogon picroides L. legitimate

Thompson, I.R. (22 May 2007), A taxonomic treatment of tribe Lactuceae (Asteraceae) in Australia. Muelleria 25: 87 [nomenclatural synonym]

nomenclatural synonym of: Urospermum picroides (L.) Scop. ex F.W.Schmidt legitimate

Thompson, I.R. in Wilson, A.J.G. (ed.) (2015), Urospermum. Flora of Australia 37: 134 [nomenclatural synonym]

nomenclatural synonym of: Urospermum picroides (L.) Scop. ex F.W.Schmidt legitimate

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