Linnaeus, C. (1 May 1753), Species Plantarum 2: 937 [tax. nov.]

Ventenat, E.P. (1803), Jardin de la Malmaison 1(5): 27 [basionym]

basionym of: Ionidium enneaspermum (L.) Vent. legitimate

Mueller, F.J.H. von (1876), Fragmenta Phytographiae Australiae 10(85): 81 [basionym]

basionym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

Kuntze, C.E.O. (5 November 1891), Revisio Generum Plantarum 1: 41 [basionym]

basionym of: Calceolaria enneasperma (L.) Kuntze legitimate

Domin, K. (1928), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 982 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

Bennett, E.M. (14 November 1972), A revision of the Australian species of Hybanthus Jacquin (Violaceae). Nuytsia 1(3): 227 [secondary reference]

• Type: "from Ceylon, Hermann (holo.: BM, photo seen)."

Bennett, E.M. (14 November 1972), A revision of the Australian species of Hybanthus Jacquin (Violaceae). Nuytsia 1(3): 227 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

Bennett, E.M. & George, A.S. in Jessop, J.P. (ed.) (1981), Viiolaceae. Flora of Central Australia: 223 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. subsp. enneaspermus legitimate

Adams, L.G. & George, A.S. in George, A.S. (ed.) (1982), Violaceae. Flora of Australia 8: 102 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Violaceae. Flora of South-eastern Queensland 2: 100 [nomenclatural synonym]

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

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

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Hybanthus enneaspermus (L.) F.Muell. legitimate

Flicker, B.J. & Ballard, H.E. (2015), Afrohybanthus (Violaceae), a new genus for a distinctive and widely distributed Old World hybanthoid lineage. Phytotaxa 230(1): 47 [basionym]

basionym of: Afrohybanthus enneaspermus (L.) Flicker 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: 29 [basionym]

basionym of: Pigea enneasperma (L.) P.I.Forst. legitimate

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Afrohybanthus enneaspermus (L.) Flicker legitimate

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