Barker, W.R. (29 September 1982), Taxonomic studies in Euphrasia L. (Scrophulariaceae). A revised infrageneric classification, and a revision of the genus in Australia. Journal of the Adelaide Botanic Gardens 5: 280 APC [autonym]

• APC Comment: Probable hybrids between Euphrasia orthocheila subsp. orthocheila and Euphrasia collina subsp. paludosa are recorded by W.R.Barker, J. Adelaide Bot. Gard. 5: 290 (1982).
• APC Dist.: Qld, NSW

Barker, W.R. in Harden, G.J. (ed.) (1992), Scrophulariaceae. Flora of New South Wales 3: 588 [secondary reference]

Holland, A.E. in Henderson, R.J.F. (ed.) (2002), Scrophulariaceae. Names and Distribution of Queensland Plants, Algae and Lichens: 186 [secondary reference]

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