Candolle, A.P. de in Candolle, A.P. de (ed.) (1824), Violarieae. Prodromus Systematis Naturalis Regni Vegetabilis 1: 307 [comb. nov.]

basionym: Ionidium monopetalum Schult. legitimate

Domin, K. (1928), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 985 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus monopetalus (Schult.) Domin legitimate

Bennett, E.M. (14 November 1972), A revision of the Australian species of Hybanthus Jacquin (Violaceae). Nuytsia 1(3): 234 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus monopetalus (Schult.) Domin legitimate

Adams, L.G. & George, A.S. in George, A.S. (ed.) (1982), Violaceae. Flora of Australia 8: 104 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus monopetalus (Schult.) Domin legitimate

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

nomenclatural synonym of: Hybanthus monopetalus (Schult.) Domin legitimate

Forster, P.I. (24 March 2021), Reinstatement of Pigea Ging., an earlier generic name for the spade flowers previously included in Afrohybanthus Flicker (Violaceae). Austrobaileya 11: 31 [secondary reference]

nomenclatural synonym: Ionidium monopetalum Schult. legitimate nomenclatural synonym: Solea monopetala (Schult.) Spreng. legitimate nomenclatural synonym: Calceolaria monopetala (Schult.) Hochr. ex Britten nom. inval., nom. nud. nomenclatural synonym: Hybanthus monopetalus (Schult.) Domin legitimate taxonomic synonym: Pigea filiformis Ging. legitimate taxonomic synonym: Ionidium linearioides C.Presl legitimate taxonomic synonym: Ionidium filiforme (Ging.) F.Muell. legitimate taxonomic synonym: Hybanthus filiformis (Ging.) F.Muell. legitimate taxonomic synonym: Hybanthus tatei Tate nom. inval., nom. nud. taxonomic synonym: Hybanthus tatei F.Muell. nom. inval., nom. nud. taxonomic synonym: Hybanthus tatei F.Muell. ex Tate legitimate taxonomic synonym: Calceolaria tatei (Tate) Kuntze legitimate taxonomic synonym: Calceolaria filiformis (Ging.) Kuntze legitimate taxonomic synonym: Hybanthus monopetalus var. abbreviatus Domin legitimate taxonomic synonym: Hybanthus monopetalus var. normalis Domin nom. inval.

Brown, G.K. (December 2021), Appendix A: New names and name and status changes 2020 to 2021. Introduction to the Census of the Queensland Flora 2021: 13 [secondary reference]

nomenclatural synonym: Hybanthus monopetalus (Schult.) Domin legitimate

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