Wilson, Paul G. (31 August 1989), A revision of the genus Hyalosperma (Asteraceae: Inuleae: Gnaphaliinae). Nuytsia 7(1): 85, 87, Fig. 8 (map) [comb. nov.]

• Type: Swan River, J. Drummond 66 (holo: K).

basionym: Pteropogon demissus A.Gray legitimate nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate taxonomic synonym: Helipterum exiguum F.Muell. legitimate

Anderberg, A.A. (1991), Taxonomy and Phylogeny of the Tribe Gnaphalieae (Asteraceae). Opera Botanica 104: 124 [secondary reference]

nomenclatural synonym: Pteropogon demissus A.Gray legitimate nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate taxonomic synonym: Helipterum exiguum F.Muell. legitimate

Wilson, Peter G. in Harden, G.J. (ed.) (1992), Hyalosperma. Flora of New South Wales 3: 227 [secondary reference]

nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate

Short, P.S. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Hyalosperma. Flora of Victoria 4: 803, Fig. 159h [secondary reference]

nomenclatural synonym: Pteropogon demissus A.Gray legitimate nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate

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

nomenclatural synonym: Pteropogon demissus A.Gray legitimate nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate taxonomic synonym: Helipterum exiguum F.Muell. legitimate taxonomic synonym: Argyrocome exigua (F.Muell.) Kuntze legitimate

• APC Dist.: WA, SA, NSW, Vic, Tas

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 17 [secondary reference]

nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate taxonomic synonym: Helipterum exiguum F.Muell. legitimate

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Pteropogon demissus A.Gray legitimate nomenclatural synonym: Helipterum demissum (A.Gray) Druce legitimate taxonomic synonym: Helipterum exiguum F.Muell. nom. inval., nom. nud. taxonomic synonym: Helipterum exiguum F.Muell. legitimate taxonomic synonym: Argyrocome exigua (F.Muell.) Kuntze legitimate

• APC Dist.: WA, SA, NSW, Vic, Tas

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