Du Rietz, G.E. (1948), Taxonomical notes on some Tasmanian species of Euphrasia. II. Euphrasia collina R. Br. and E. gunnii Du Rietz, nov. nom. Svensk Botanisk Tidskrift 42(4): 358, in obs., 362, in clavi [secondary reference]

• Comment: nom. inval. – no Latin description or diagnosis.

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: 124 [taxonomic synonym]

taxonomic synonym of: Euphrasia gibbsiae subsp. kingii (W.M.Curtis) W.R.Barker legitimate

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Euphrasia gibbsiae subsp. kingii (W.M.Curtis) W.R.Barker legitimate

---