Allan, H.H.B. (1961), Flora of New Zealand 1: 173 [comb. nov.]

basionym: Piper excelsum var. majus Cheeseman legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 173 [taxonomic synonym]

taxonomic synonym of: Macropiper excelsum var. psittacorum (Endl.) Laing legitimate

Sykes, W.R. (1992), Two new names in Macropiper Miq. (Piperaceae) from New Zealand. New Zealand Journal of Botany 30: 233 [taxonomic synonym]

taxonomic synonym of: Macropiper excelsum subsp. psittacorum (Endl.) Sykes legitimate

Green, P.S. in Wilson, A.J.G. (ed.) (1994), Norfolk Island & Lord Howe Island. Flora of Australia 49: 48 [taxonomic synonym]

taxonomic synonym of: Macropiper excelsum subsp. psittacorum (Endl.) Sykes legitimate

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

nomenclatural synonym of: Macropiper excelsum subsp. psittacorum (Endl.) Sykes legitimate

de Lange, P.J. (2012), Taxonomic notes on the New Zealand flora: new names in Piper (Piperaceae). New Zealand Journal of Botany 50(4): 486 [taxonomic synonym]

taxonomic synonym of: Piper excelsum subsp. psittacorum (Endl.) de Lange legitimate

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