Carmichael, D. (1818), Flora of Tristan da Cunha. Transactions of the Linnean Society of London 12(2): 513 [tax. nov.]

• Type: "On the rocks [Tristan da Cunha]"

Mueller, F.J.H. von (1866), Fragmenta Phytographiae Australiae 5(36): 116 [secondary reference]

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - APC [secondary reference]

• APC Comment: A South American taxon, recorded by F.J.H. von Mueller, Fragm. 5(36): 116 (1866), but not known to occur in Australia.

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