White, C.T. (1 April 1933), Ligneous plants collected for the Arnold Arboretum in north Queensland by S.F. Kajewski in 1929. Contributions from the Arnold Arboretum of Harvard University 4: 23 [tax. nov.]

• Type: "New South Wales. Duck Creek, Richmond River, C. Moore (type)"

• Comment: nom. inval. as this is presumably meant to be the type variety.

Sleumer, H.O. (1955), Studies in Old World Proteaceae. Blumea 8(1): 14 [taxonomic synonym]

taxonomic synonym of: Helicia youngiana C.Moore & F.Muell. var. youngiana legitimate

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1986), Proteaceae. Flora of South-eastern Queensland 2: 14 [taxonomic synonym]

taxonomic synonym of: Triunia youngiana (C.Moore & F.Muell.) L.A.S.Johnson & B.G.Briggs legitimate

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Triunia. Flora of Australia 16: 405 [taxonomic synonym]

taxonomic synonym of: Triunia youngiana (C.Moore & F.Muell.) L.A.S.Johnson & B.G.Briggs legitimate

Council of Heads of Australasian Herbaria (2005), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Triunia youngiana (C.Moore & F.Muell.) L.A.S.Johnson & B.G.Briggs legitimate

Olde, P.M. (10 August 2015), Triunia kittredgei Olde (Proteaceae: Grevilleoideae: Roupaleae), a new name for Triunia robusta sensu Foreman misapplied. Telopea 18: 189 [taxonomic synonym]

taxonomic synonym of: Triunia youngiana (C.Moore & F.Muell.) L.A.S.Johnson & B.G.Briggs legitimate

Guymer, G.P. & Forster, P.I. (3 November 2015), Triunia kittredgei Olde (Proteaceae): a name to be rejected. Austrobaileya 9(3): 459 [nomenclatural synonym]

nomenclatural synonym of: Triunia youngiana (C.Moore & F.Muell.) L.A.S.Johnson & B.G.Briggs legitimate

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