Arcangeli, G. (1882), Compendio della Flora Italiana Edn. 1: 112 [tax. nov.]

• Type: "Arene marittime nella Liguria occidentale e nelle isole."

Graebner, K.O.R.P.P. in Ascherson, P.F.A. & Graebner, K.O.R.P.P. (ed.) (17 February 1919), Synopsis der Mitteleuropaischen Flora 5(1), 11: 862 [secondary reference]

Probst, R. (1949), Wolladventiflora Mitteleuropas: 84 [secondary reference]

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - [secondary reference]

orthographic variant: Polycarpon tetraphyllum var. alsinaefolium Arcang. orth. var.

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Polycarpon tetraphyllum (L.) L. legitimate

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