Hartmann, H.E.K., Meve, U. & Liede-Schumann, S. (2011), Towards a revision of Trianthema, the Cinderella of Aizoaceae. Plant Ecology and Evolution 144(2): 210-211, Fig. 5D-F [tax. nov.]

• Type: Australia, Northern Territory, 2.9 km from Daly Waters, N along Stuart Highway, 25 Feb. 1999, Short & Dunlop 4932 (holo-: DNA)

• Etymology: "The epithet refers to the ufo-like appearance of the operculum, conspicuously purple even in the dry state and eye-catching in most populations."

Council of Heads of Australasian Herbaria (2014), Australian Plant Census: - [secondary reference]

orthographic variant: Trianthema ufoensis H.E.K.Hartmann & Liede orth. var.

Council of Heads of Australasian Herbaria (2014), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Trianthema triquetrum Willd. legitimate

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Trianthema triquetrum Willd. legitimate

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