Forster, P.I. in Henderson, R.J.F. (ed.) (1997), Piperaceae. Queensland Plants: Names and Distribution: 149 [primary reference]

Forster, P.I. in Henderson, R.J.F. (ed.) (2002), Piperaceae. Names and Distribution of Queensland Plants, Algae and Lichens: 144 [secondary reference]

Spokes, T.M. in Wilson, A.J.G. (ed.) (2007), Piper. Flora of Australia 2: 239 [taxonomic synonym]

taxonomic synonym of: Piper hederaceum var. longiorispicum Spokes legitimate

Council of Heads of Australasian Herbaria (2008), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Piper hederaceum var. longiorispicum Spokes legitimate

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