Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 479 [tax. nov.]

• Type: Hygrophila angustifolia R.Br.

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 99 [secondary reference]

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

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Acanthaceae. Flora of South-eastern Queensland 2: 453 [secondary reference]

Barker, R.M. (12 September 1986), A taxonomic revision of Australian Acanthaceae. Journal of the Adelaide Botanic Gardens 9: 117-124 [secondary reference]

Barker, R.M. in Wheeler, J.R. (ed.) (1992), Acanthaceae. Flora of the Kimberley Region: 849 [secondary reference]

Everett, J. in Harden, G.J. (ed.) (1992), Acanthaceae. Flora of New South Wales 3: 606 [secondary reference]

Short, P.S. in Cowie, I.D., Short, P.S. & Osterkamp Madsen, M. (2000), Acanthaceae. Floodplain Flora. A flora of the coastal floodplains of the Northern Territory, Australia: 164 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 422 [secondary reference]

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

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

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