Linnaeus, C. [filius] (April 1782), Supplementum Plantarum: 393 [tax. nov.]

• Type: Habitat in Cap. bonae spei. Thunberg."

Presl, C.B. [K.B.] (1836), Prodromus Monographiae Lobeliacearum: 11 [basionym]

basionym of: Monopsis debilis (L.f.) C.Presl legitimate

Mueller, F.J.H. von (1876), Fragmenta Phytographiae Australiae 10(82): 43 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 140 [taxonomic synonym]

taxonomic synonym of: Monopsis simplex (L.) E.Wimm. var. simplex legitimate

Albrecht, D.E. & Walsh, N.G. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Campanulaceae. Flora of Victoria 4: 578 [nomenclatural synonym]

nomenclatural synonym of: Monopsis debilis (L.f.) C.Presl legitimate

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

nomenclatural synonym of: Monopsis debilis (L.f.) C.Presl legitimate

---