Kunth, K.S. (1843), Enumeratio Plantarum Omnium Hucusque Cognitarum 4: 134 [comb. nov.]

basionym: Pontederia vaginalis Burm.f. legitimate

• Comment: C.Presl, Reliquiae Haenkeanae 1: 128 (1825–1830) , in obs., indicates that Pontederia vaginalis Burm.f. belongs in his new genus Monochoria, but does not actually make the combination at species rank.

Hooker, J.D. (29 December 1859), Introductory Essay. The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 2(11): xlvii. [secondary reference]

Mueller, F.J.H. von (1873), Fragmenta Phytographiae Australiae 8(60): 44 [misapplied]

misapplied to: Monochoria cyanea (F.Muell.) F.Muell. legitimate by Hooker, J.D. (29 December 1859), Introductory Essay. The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 2(11): xlvii.

Backer, C.A. (December 1951), Pontederiaceae. Flora Malesiana Series I 4(3): 256-258 [secondary reference]

Aston, H.I. (1973), Aquatic Plants of Australia: 269 [secondary reference]

Aston, H.I. in George, A.S. (ed.) (1987), Pontederiaceae. Flora of Australia 45: 48, Fig. 30, Map 47 [secondary reference]

nomenclatural synonym: Pontederia vaginalis Burm.f. legitimate

• APC Dist.: WA, NT, Qld

Dunlop, C.R. (1987), Checklist of the Vascular Plants of the Northern Territory. Technical Report: Conservation Commission of the Northern Territory 26: 69 [secondary reference]

Green, J.W. (18 October 1987), Census of the Vascular Plants of Western Australia Edn. 2, Suppl. 5: 3 [secondary reference]

Rye, B.L. in Wheeler, J.R. (ed.) (1992), Pontederiaceae. Flora of the Kimberley Region: 1015-1016, Fig. 305B [secondary reference]

Short, P.S. in Cowie, I.D., Short, P.S. & Osterkamp Madsen, M. (2000), Pontederiaceae. Floodplain Flora. A flora of the coastal floodplains of the Northern Territory, Australia: 333, Fig. 87 [secondary reference]

Pellegrini, M.O.O., Horn, C.N. & Almeida, R.F. (2018), Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L. Phytokeys 108: 61 [nomenclatural synonym]

nomenclatural synonym of: Pontederia vaginalis Burm.f. legitimate

Percy-Bower, J.M. & Parker, C.M. (28 March 2019), Updates to Western Australia’s vascular plant census for 2018. Nuytsia 30: 12 [nomenclatural synonym]

nomenclatural synonym of: Pontederia vaginalis Burm.f. legitimate

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

misapplied to: Pontederia cyanea (F.Muell.) M.Pell. & C.N.Horn legitimate by Hooker, J.D. (29 December 1859), Introductory Essay. The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 2(11): xlvii.

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