Black, J.M. (1932), Additions to the Flora of South Australia. No. 30. Transactions and proceedings of the Royal Society of South Australia 56: 46, t. II, fig. 3 [tax. nov.]

• Type: Clelandia convallis J.Black

Black, J.M. (1952), Flora of South Australia Edn. 2, 3: 591 [secondary reference]

• Etymology: "After the discoverer, Prof. J. B. Cleland, of the Adelaide University."

Bennett, E.M. (14 November 1972), A revision of the Australian species of Hybanthus Jacquin (Violaceae). Nuytsia 1(3): 225 [taxonomic synonym]

taxonomic synonym of: Hybanthus Jacq. nom. cons.

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

taxonomic synonym of: Hybanthus Jacq. nom. cons.

Brummitt, R.K. (1992), Vascular Plant Families and Genera: 104 [taxonomic synonym]

taxonomic synonym of: Hybanthus Jacq. nom. cons.

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: 28 [taxonomic synonym]

taxonomic synonym of: Pigea Ging. legitimate

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

taxonomic synonym of: Hybanthus Jacq. nom. cons.

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