Bentham, G. (16 December 1868), Flora Australiensis 4: 555 [tax. nov.]

• Type: "Cape York, Daemel; Rockhampton, Dallachy."

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 374 [secondary reference]

Domin, K. (1929), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 1162 [basionym]

basionym of: Pseuderanthemum grandiflorum var. molle (Benth.) Domin legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 61 [taxonomic synonym]

taxonomic synonym of: Pseuderanthemum variabile (R.Br.) Radlk. legitimate

Barker, R.M. (12 September 1986), A taxonomic revision of Australian Acanthaceae. Journal of the Adelaide Botanic Gardens 9: 147 [secondary reference]

• Lectotype: "Dallachy 376, 21.ii.1863, Rockhampton (MEL 601987); isolectotype: (MEL 601988); possible isolectotype: Dallachy s.n., s. dat., Rockhampton (K p.p.)"

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

taxonomic synonym of: Pseuderanthemum variabile (R.Br.) Radlk. legitimate

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