Bentham, G. in Endlicher, S.F.L., Fenzl, E., Bentham, G. & Schott, H.W. (April 1837), Leguminosae. Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in Sinu Regis Georgii collegit Carolus liber baro de Hügel: 28 [tax. nov.]

• Type: (not designated).

Bentham, G. (5 October 1864), Flora Australiensis 2: 38 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 33 [secondary reference]

Diels, F.L.E. & Pritzel, E.G. (6 December 1904), Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 35(2-3): 230-231 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 125 [secondary reference]

Sulman, F. (1913), A Popular Guide to the Wild Flowers of New South Wales 1: 102 [secondary reference]

Black, J.M. (1924), Casuarinaceae - Euphorbiaceae. Flora of South Australia 2: 295 [secondary reference]

• Etymology: Greek isos, equal; tropis, keel: the keel is about as long as the wings.

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 432 [secondary reference]

Thompson, J. (1961), Papilionaceae. Contributions from the New South Wales National Herbarium, Flora Series 101(1): 21-22 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 123 [secondary reference]

Maconochie, J.R. in Jessop, J.P. (ed.) (1981), Isotropis. Flora of Central Australia: 146 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1984), Fabaceae. Flora of South-eastern Queensland 1: 248, 250 [secondary reference]

Wheeler, J.R. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Papilionaceae. Flora of the Perth Region 1: 269 [secondary reference]

Porteners, M.F. in Harden, G.J. (ed.) (1991), Isotropis. Flora of New South Wales 2: 467 [secondary reference]

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Papilionaceae (Fabaceae). Flora of the Kimberley Region: 413 [secondary reference]

Porteners, M.F. in Harden, G.J. (ed.) (2002), Isotropis. Flora of New South Wales Revised Edition 2: 528 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 758 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 437 [secondary reference]

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

• APC Dist.: WA, NT, SA, Qld, NSW

Barrett, R.L., Clugston, J.A.R., Cook, L.G., Crisp, M.D., Jobson, P.C., Lepschi, B.J., Renner, M.A.M. & Weston, P.H. (20 August 2021), Understanding diversity and systematics in Australian Fabaceae Tribe Mirbelieae. Diversity 13(8): 31-32 [online only] [secondary reference]

• Type: "Isotropis striata Benth. [= I. cuneifolia (Sm.) Walp.]."

• Text: "Bentham described two species in his new genus Isotropis, I. biloba Benth. and I. striata Benth. but did not designate either as the type as this was not a practice at the time. Bentham recognised I. striata as a good species, but included I. biloba as a synonym, having examined a broader range of specimens since his original treatment. On that basis, we here designate I. striata as the type of the genus."

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