Haines, H.H. (1922), The Botany of Bihar and Orissa 4: 635, 666 [comb. nov.]

basionym: Gratiola hyssopoides L. legitimate

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - APC [secondary reference]

orthographic variant: Lindernia hyssopioides Haines orth. var. nomenclatural synonym: Gratiola hyssopoides L. legitimate

• APC Dist.: Qld

Biffin, E., Barker, W.R., Wannan, B. & Liang, Y.-S. (9 July 2018), The phylogenetic placement of Australian Linderniaceae and implications for generic taxonomy. Australian Systematic Botany 31(3): 249 [secondary reference]

nomenclatural synonym: Gratiola hyssopoides L. legitimate

---