Mueller, F.J.H. von (July 1883), Definitions of some new Australian plants. Southern Science Record 3(7): 175 [tax. nov.]

• Type: "Upper Swan River; Miss Julia Sewell."

Mueller, F.J.H. von (10 March 1884), Systematic Census of Australian Plants Suppl. 1: 3 [secondary reference]

Diels, F.L.E. & Pritzel, E.G. (6 December 1904), Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 35(2-3): 451 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 135 [secondary reference]

Wheeler, J.R. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Apiaceae. Flora of the Perth Region 1: 508 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 483 [secondary reference]

Western Australian Herbarium (2011), FloraBase: the Western Australian Flora Version 2.6: - [secondary reference]

• APC Dist.: WA

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 42-43, photos 1-3 [secondary reference]

Perkins, A.J. (2019), Molecular phylogenetics and species delimitation in annual species of Hydrocotyle (Araliaceae) from South Western Australia. Molecular Phylogenetics and Evolution 134: 268 [taxonomic synonym]

taxonomic synonym of: Hydrocotyle scutellifera Benth. legitimate

Perkins, A.J. (10 December 2019), Nomenclatural updates and a new species of annual Hydrocotyle (Araliaceae) from Western Australia. Nuytsia 30: 268 [secondary reference]

• Type: " ‘Upper Swan River’ [Western Australia], 1883, Miss Julia Sewell s.n. (holo: MEL 7788!; iso: MEL 7789!)."

Perkins, A.J. (10 December 2019), Nomenclatural updates and a new species of annual Hydrocotyle (Araliaceae) from Western Australia. Nuytsia 30: 268 [taxonomic synonym]

taxonomic synonym of: Hydrocotyle scutellifera Benth. legitimate

Percy-Bower, J.M. & Parker, C.M. (24 June 2021), Updates to Western Australia’s vascular plant census for 2020. Nuytsia 32: 12 [taxonomic synonym]

taxonomic synonym of: Hydrocotyle scutellifera Benth. legitimate

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