Mildbraed, G.W.J. in Engler, H.G.A. (26 May 1908), Stylidiaceae. Das Pflanzenreich 35: 91 [tax. nov.]

• Type: "West-Australien: Ohne Standortsangabe (Oldfield!); Distr. Irwin: Victoria, Greenough River Crossing bei Mullewa in lichten Gebüsch auf Sandboden (blühend im September 1901 – Diels n. 6067!)."

Wege, J.A. (16 December 2006), Reinstatement of Stylidium rigidulum (Stylidiaceae), with notes on the morphologically allied S. kalbarriense. Nuytsia 16(1): 200 [secondary reference]

• Lectotype: West-Australien: Ohne Standortsangabe, Oldfield s.n. (lecto, here designated: W).

Wege, J.A. (16 December 2006), Reinstatement of Stylidium rigidulum (Stylidiaceae), with notes on the morphologically allied S. kalbarriense. Nuytsia 16(1): 200 [taxonomic synonym]

taxonomic synonym of: Stylidium rigidulum Sond. legitimate

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

taxonomic synonym of: Stylidium rigidulum Sond. legitimate

Western Australian Herbarium (2011), FloraBase: the Western Australian Flora Version 2.6: - [taxonomic synonym]

taxonomic synonym of: Stylidium rigidulum Sond. legitimate

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