Retzius, A.J. (1791), Observationes Botanicae 6: 75 [tax. nov.]

Smith, J.E. (1791), An account of several plants presented to the Linnean Society, at different times, by Mr. John Fairbairn and Mr. Thomas Hoy, Fellows of the Linnean Society. Transactions of the Linnean Society of London 1: 249 [basionym]

basionym of: Costus speciosus (J.Koenig) Sm. legitimate

Dutta, S.R. (30 June 2013), Comment on the identity of Hellenia speciosa (J. Koenig ex Smith) S. Dutta & Hellenia speciosa (J. Koenig ex Smith) S. Dutta var dilnavazii (M.R. Almeida & S.M. Almeida) S. Dutta. Pleione 7(1): 228 [basionym]

basionym of: Hellenia speciosa (J.Koenig) S.R.Dutta legitimate

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