Benl, G. (15 October 1967), Mitteilungen der Botanischen Staatssammlung Munchen 6: 500-503 [comb. et stat. nov.]

basionym: Trichinium laxum Benth. legitimate nomenclatural synonym: Ptilotus laxus (Benth.) F.Muell. legitimate taxonomic synonym: Ptilotus polystachyus (Gaudich.) F.Muell. legitimate

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [secondary reference]

nomenclatural synonym: Trichinium laxum Benth. legitimate nomenclatural synonym: Ptilotus laxus (Benth.) F.Muell. legitimate

• APC Dist.: WA

Davis, R.W. & Butcher, R. (29 September 2010), The status of infraspecific taxa and new subspecies in Ptilotus stirlingii (Amaranthaceae). Nuytsia 20: 269 [taxonomic synonym]

taxonomic synonym of: Ptilotus stirlingii subsp. australis R.W.Davis & R.Butcher nom. inval.

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

taxonomic synonym of: Ptilotus stirlingii subsp. australis R.W.Davis & R.Butcher legitimate

Davis, R.W. & Butcher, R. (24 June 2011), Valid publication of Ptilotus stirlingii subsp. australis (Amaranthaceae). Nuytsia 21(1): 31 [taxonomic synonym]

taxonomic synonym of: Ptilotus stirlingii subsp. australis R.W.Davis & R.Butcher legitimate

Biggs, L.J. & Parker, C.M. (21 November 2013), Updates to Western Australia's vascular plant census for 2012. Nuytsia 23: 519 [taxonomic synonym]

taxonomic synonym of: Ptilotus stirlingii subsp. australis R.W.Davis & R.Butcher legitimate

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