Caspary, J.X. (19 December 1856), Eine neuer standort der Udora occidentalis Koch (Hydrilla verticillata Casp.). Botanische Zeitung 14(51): 901 [comb. nov.]

basionym: Serpicula verticillata L.f. legitimate

Caspary, J.X. (1858), Jahrbucher fur Wissenschaftliche Botanik 1: 494 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 20 [nomenclatural synonym]

nomenclatural synonym of: Hydrilla verticillata (L.f.) Royle legitimate

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [isonym]

isonym of: Hydrilla verticillata (L.f.) Royle legitimate

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - [isonym]

isonym of: Hydrilla verticillata (L.f.) Royle legitimate

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