Bentham, G. (1826), Catalogue des Plantes Indigenes Pyrenees et du Bas Languedoc: 101 [tax. nov.]

• Type: "Nous l'avons découvert dans les lilés aux environs de lascastle et de Villeneuve dans de Basses Corbières."

Black, J.M. (1916), Additions to the Flora of South Australia. No 9. Transactions and proceedings of the Royal Society of South Australia 40: 66 [secondary reference]

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 459, Figs 637D, 639 [secondary reference]

taxonomic synonym: Medicago hispida var. inermis Urb. nom. illeg.

Heyn, C.C. (1963), The Annual Species of Medicago. Scripta Hierosolymitana 12: 77 [taxonomic synonym]

taxonomic synonym of: Medicago polymorpha var. brevispina (Benth.) Heyn legitimate

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 189 [taxonomic synonym]

taxonomic synonym of: Medicago polymorpha var. brevispina (Benth.) Heyn legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 124 [taxonomic synonym]

taxonomic synonym of: Medicago polymorpha var. brevispina (Benth.) Heyn legitimate

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1984), Fabaceae. Flora of South-eastern Queensland 1: 281 [taxonomic synonym]

taxonomic synonym of: Medicago polymorpha var. brevispina (Benth.) Heyn legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Medicago polymorpha L. legitimate

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