Schultz, O.E. (1933), Kurze Notizen uber neue Gattungen, Sektionen und Arten der Cruciferen. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 66(1): 93 [tax. nov.]

• Type: (not designated).

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 385 [secondary reference]

• Etymology: "Greek phlegma, mucus; sperma, seed."

Shaw, E.A. (1974), Revisions of some genera of Cruciferae native to Australia. Contributions of the Gray Herbarium of Harvard University 205: 150 [secondary reference]

• Type: Phlegmatospermum cochlearinum (F.Muell.) O.Schulz

Carolin, R.C. & Hewson, H.J. in Jessop, J.P. (ed.) (1981), Cruciferae (Brassicaceae). Flora of Central Australia: 97 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 93 [secondary reference]

Hewson, H.J. in George, A.S. (ed.) (9 December 1982), Brassicaceae. Flora of Australia 8: 292-295 APC [secondary reference]

taxonomic synonym: Eunomia subg. Pseudonomia F.Muell. legitimate

• APC Dist.: WA, SA, NSW, Vic

Entwisle, T.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Brassicaceae. Flora of Victoria 3: 428 [secondary reference]

Retter, L. & Harden, G.J. in Harden, G.J. (ed.) (2000), Brassicaceae. Flora of New South Wales Revised Edition 1: 473 [secondary reference]

Appel, O. & Al-Shehbaz, I.A. in Kubitzki, K. (ed.) (2002), Cruciferae. The Families and Genera of Vascular Plants 5: 149-150 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 656 [secondary reference]

Al-Shehbaz, I.A. (September 2012), A generic and tribal synopsis of the Brassicaceae (Cruciferae). Taxon 61(5): 943 [secondary reference]

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