Sims, J. (1825), Botanical Magazine 52: t. 2591 [tax. nov.]

• Type: "... Robert Barclay, Esq. ... received the seeds from the Mauritius, through Mr. Telfair, ... and stated to be native of the islands of Zanzebar and Pomba, on the East coast of Africa."

Bentham, G. (1834), Labiatarum Genera et Species 5: 543 [secondary reference]

Fitzgerald, W.V. (1918), The Botany of the Kimberleys, north-west Australia. Journal and Proceedings of the Royal Society of Western Australia 3: 91 [secondary reference]

Domin, K. (1929), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 1155 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 206 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Thunbergiaceae. Flora of South-eastern Queensland 2: 452, Fig. 63H [secondary reference]

common name: Black Eyed Susan [n/a]

Barker, R.M. (12 September 1986), A taxonomic revision of Australian Acanthaceae. Journal of the Adelaide Botanic Gardens 9: 47-48 [secondary reference]

Everett, J. in Harden, G.J. (ed.) (1992), Acanthaceae. Flora of New South Wales 3: 605, pl.29 [secondary reference]

common name: Black-eyed Susan [n/a]

Hyland, B.P.M., Gray, B. & Elick, R.W. in Cooper, W.E. & Cooper, W.T. (1994), Appendix I: Provisional Species List. Fruits of the Rainforest: 300 [secondary reference]

Hyland, B.P.M., Whiffin, T.P., Christophel, D.C., Gray, B. & Elick, R.W. (2003), Australian tropical rain forest plants. Trees, Shrubs and Vines: Code 2542 [secondary reference]

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 12 [secondary reference]

common name: Black-eyed Susan [n/a]

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - APC [secondary reference]

• APC Dist.: WA (naturalised), Qld (naturalised), NSW (naturalised)

Bean, A.R. in Bostock, P.D. & Holland, A.E. (ed.) (8 December 2010), Acanthaceae. Census of the Queensland Flora 2010: 6 [secondary reference]

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