Wilson, Paul G. (31 August 1989), Erymophyllum (Asteraceae: Inuleae: Gnaphaliinae), a new Australian genus in the Helipterum complex. Nuytsia 7(1): 114-115, Fig. 5 (map) [comb. nov.]

basionym: Helipterum tenellum Turcz. legitimate taxonomic synonym: Pteropogon gracilis A.Gray legitimate taxonomic synonym: Helipterum gracile (A.Gray) Benth. legitimate taxonomic synonym: Helipterum intermedium S.Moore legitimate

Anderberg, A.A. (1991), Taxonomy and Phylogeny of the Tribe Gnaphalieae (Asteraceae). Opera Botanica 104: 105 [secondary reference]

nomenclatural synonym: Helipterum tenellum Turcz. legitimate taxonomic synonym: Helipterum gracile (A.Gray) Benth. legitimate taxonomic synonym: Helipterum intermedium S.Moore legitimate

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

nomenclatural synonym: Helipterum tenellum Turcz. legitimate nomenclatural synonym: Argyrocome tenella (Turcz.) Kuntze legitimate taxonomic synonym: Pteropogon gracilis A.Gray legitimate taxonomic synonym: Helipterum gracile (A.Gray) Benth. legitimate taxonomic synonym: Helipterum intermedium S.Moore legitimate

• APC Dist.: WA

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