Cuatrecasas, J. (1929), Trabajos del Museo de Ciencias Naturales de Barcelona 12: 428 [comb. nov.]

basionym: Euphrasia latifolia L. legitimate

Scheunert, A., Fleischmann, A., Olano-Marin, C., Brauchler, C. & Heubl, G. (2012), Phylogeny of tribe Thinantheae (Orobanchaceae) with a focus on biogeography, cytology and re-examination of generic concepts. Taxon 61(6): 1281 [secondary reference]

nomenclatural synonym: Euphrasia latifolia L. legitimate

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 328-329, photos 11-14 [secondary reference]

nomenclatural synonym: Parentucellia latifolia (L.) Caruel legitimate common name: Common Bartsia [n/a]

Uribe-Convers, S. & Tank, D.C. (2016), Phylogenetic revision of the genus Bartsia (Orobanchaceae): disjunct distributions correlate to independent lineages. Systematic Botany 41(3): 683 [nomenclatural synonym]

nomenclatural synonym of: Parentucellia latifolia (L.) Caruel legitimate

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Parentucellia latifolia (L.) Caruel legitimate

---