Koch, W.D.J. (1824), Nova Acta Physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum Exhibentia Ephemerides sive Observationes Historias et Experimenta 12: 125 [tax. nov.]

• Type: (not designated).

Candolle, A.P. de in Candolle, A.P. de (ed.) (1830), Umbelliferae. Prodromus Systematis Naturalis Regni Vegetabilis 4: 105 [secondary reference]

Mueller, F.J.H. von (10 March 1884), Systematic Census of Australian Plants Suppl. 1: 4 [taxonomic synonym]

taxonomic synonym of: Apium L. legitimate

Mueller, F.J.H. von (13 May 1889), Systematic Census of Australian Plants Suppl. 4: 6 [pro parte taxonomic synonym]

pro parte taxonomic synonym of: Apium L. legitimate

Britton, N.L. (1918), Flora of Bermuda: 278 [secondary reference]

• Lectotype: Helosciadium nodiflorum (L.) Koch

Short, P.S. (2 April 1979), Apium L. sect. Apium (Umbelliferae) in Australasia. Journal of the Adelaide Botanic Gardens 1(4): 216 [taxonomic synonym]

taxonomic synonym of: Apium L. legitimate

Brummitt, R.K. (1992), Vascular Plant Families and Genera: 201 [taxonomic synonym]

taxonomic synonym of: Apium L. legitimate

Ronse Decraene, L.-P., Popper, Z.A., Preston, J.C. & Watson. M.F. (2010), Taxonomic revision of European Apium L. s.l.: Helosciadium W.D.J.Koch restored. Plant Systematics and Evolution 287: 1-17 [secondary reference]

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - APC [secondary reference]

• APC Dist.: NSW (naturalised), Vic (naturalised)

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