Lindley, J. (1 November 1839), A Sketch of the Vegetation of the Swan River Colony: xvi. [tax. nov.]

• Type: Ptychosema pusillum Lindley

Bentham, G. (5 October 1864), Flora Australiensis 2: 201 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 39 [secondary reference]

Sulman, F. (1913), A Popular Guide to the Wild Flowers of New South Wales 1: 124 [secondary reference]

Black, J.M. (1924), Casuarinaceae - Euphorbiaceae. Flora of South Australia 2: 306 [secondary reference]

• Etymology: Greek ptykhe, fold, leaf; sema, sign, standard.

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 448 [secondary reference]

Lee, A.T. (13 December 1973), A new genus of Papilionaceae and related Australian genera. Contributions from the New South Wales National Herbarium 4(7): 414-417 [secondary reference]

Crisp, M.D. in Jessop, J.P. (ed.) (1981), Papilionaceae (Fabaceae) - most genera. Flora of Central Australia: 152 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 126 [secondary reference]

Lee, A.T. & Thompson, J. (1984), Fabaceae. Flora of New South Wales, National Herbarium of New South Wales 101(2): 126-127 [secondary reference]

James, T.A. in Harden, G.J. (ed.) (1991), Ptychosema. Flora of New South Wales 2: 511 [secondary reference]

James, T.A. in Harden, G.J. (ed.) (2002), Ptychosema. Flora of New South Wales Revised Edition 2: 517 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 717 [secondary reference]

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

• APC Dist.: WA

Thompson, I.R. (1 July 2011), A revision of Muelleranthus, Ptychosema and Aenictophyton (Fabaceae: Bossiaeeae). Muelleria 29(2): 183 [secondary reference]

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