Linnaeus, C. (1763), Species Plantarum Edn. 2, 2: 1151 [tax. nov.]

• Type: "Habitat in Europa australi." [given by S.M.A.Kazmi, Mitt. Bot. Staatssamml. München 5 (1964) 444–447 as LINNE 966/9 (LINN)"].

Mueller, F.J.H. von (1888), Plants, hitherto immigrated and naturalized in Victoria, with indications of their nativity and English popular names. Key to the System of Victorian Plants 1: 534 [secondary reference]

Rodway, L. (1903), The Tasmanian Flora: 96 [secondary reference]

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

common name: Slender Thistle [n/a]

Ewart, A.J. (1931), Flora of Victoria: 1186 [secondary reference]

taxonomic synonym: Carduus tenuiflorus Curtis legitimate common name: Shore Thistle [n/a]

Curtis, W.M. (1963), Angiospermae: Lythraceae to Epacridaceae. The Student's Flora of Tasmania 2: 376 [secondary reference]

Kazmi, S.M.A. (1964), Revision der Gattung Carduus (Compositae). Mitteilungen der Botanischen Staatssammlung Munchen 5: 444-446 [secondary reference]

Cunningham, G.M., Mulham, W.E., Milthorpe, P.L. & Leigh, J.H. (1981), Plants of Western New South Wales: 724 [secondary reference]

common name: Slender Thistle [n/a]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 74 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 164 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 581 [secondary reference]

common name: Slender Thistle [n/a]

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: 665 [secondary reference]

common name: Slender Thistle [n/a]

Murray, L. in Harden, G.J. (ed.) (1992), Carduus. Flora of New South Wales 3: 321 [secondary reference]

common name: Slender Thistle [n/a]

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Asteraceae. Flora of Victoria 4: 671, Fig. 128h APC [secondary reference]

common name: Slender Thistle [n/a]

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

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Asteraceae. Flora of Victoria 4: 669 [pro parte misapplied]

pro parte misapplied to: Carduus tenuiflorus Curtis legitimate by Ewart, A.J. (1931), Flora of Victoria: 1186

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 498 [secondary reference]

common name: Slender Thistle [n/a]

de Lange, P.J., Gardner, R.O., Sykes, W.R., Crowcroft, G.M., Cameron, E.K., Stalker, F., Christian, M.L. & Braggins, J.E. (2005), Vascular flora of Norfolk Island: some additions and taxonomic notes. New Zealand Journal of Botany 43: 578 [secondary reference]

common name: slender winged thistle [n/a]

Bean, A.R. in Wilson, A.J.G. (ed.) (2015), Asteraceae Subfam. 2. Carduoideae Trib. 1. Cardueae. Flora of Australia 37: 54-55, Fig. 2F-I, map [secondary reference]

common name: Slender Thistle [n/a]

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 268-269, photos 6-10 [secondary reference]

common name: Slender Thistle [n/a]

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 11 [secondary reference]

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