Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 506 [tax. nov.]

• Type: "(T.) B. v.s." [given by S.T.Blake, Contr. Queensland Herb. 9 (1971) 52 as "Queensland, Endeavour River, Banks & Solander (BM, photo BRI)."].

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 100 [secondary reference]

Dixon, W.A. (1906), The Plants of New South Wales: 234 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 387 [secondary reference]

• Vernacular: Kar-kar

Domin, K. (September 1928), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 1119 [secondary reference]

Blake, S.T. (1971), A revision of Plectranthus (Labiatae) in Australasia. Contributions from the Queensland Herbarium 9: 52-54, Figs 2S, 4G, 26, 36 APC [secondary reference]

taxonomic synonym: Plectranthus australis f. eximius Domin legitimate

• APC Dist.: WA, Qld

Keng, W. (1978), Labiatae. Flora Malesiana Series I 8(3): 387-388 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 147 [secondary reference]

Conn, B.J. in Wheeler, J.R. (ed.) (1992), Lamiaceae. Flora of the Kimberley Region: 807, Fig. 248A [secondary reference]

Forster, P.I. (9 September 1992), Five new species of Plectranthus L. Herit (Lamiaceae) from Queensland. Austrobaileya 3(4): 740 [secondary reference]

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: 305 [secondary reference]

Hyland, B.P.M., Whiffin, T.P., Christophel, D.C., Gray, B., Elick, R.W. & Ford, A.J. (1999), Australian tropical rain forest trees and shrubs. Australian tropical rain forest trees and shrubs: 68 [secondary reference]

Paczkowska, G. & Chapman, A.R. (2000), The Western Australian Flora, a descriptive catalogue: 275 [secondary reference]

Forster, P.I. in Henderson, R.J.F. (ed.) (2002), Lamiaceae. Names and Distribution of Queensland Plants, Algae and Lichens: 95 [secondary reference]

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 238 [secondary reference]

taxonomic synonym: Plectranthus australis var. graveolens (R.Br.) Domin legitimate

Western Australian Herbarium (2007), FloraBase: the Western Australian Flora Version 2.5: - [secondary reference]

Paton, A.J., Mwanyambo, M., Govaerts, R.H.A., Smitha, K., Suddee, S., Phillipson, P.B., Wilson, T.C., Forster, P.I. & Culham, A. (23 August 2019), Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): a tale of more than two genera. Phytokeys 129: 36 [basionym]

basionym of: Coleus congestus (R.Br.) A.J.Paton legitimate

Brown, G.K. & Bostock, P.D. (December 2019), Appendix A: New names and name and status changes 2018 to 2019. Introduction to the Census of the Queensland Flora 2019: 9 [nomenclatural synonym]

nomenclatural synonym of: Coleus congestus (R.Br.) A.J.Paton legitimate

Parker, C.M. & Percy-Bower, J.M. (10 December 2019), Updates to Western Australia’s vascular plant census for 2019. Nuytsia 30: 346 [nomenclatural synonym]

nomenclatural synonym of: Coleus congestus (R.Br.) A.J.Paton legitimate

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