Endlicher, S.F.L. in Endlicher, S.F.L., Fenzl, E., Bentham, G. & Schott, H.W. (April 1837), Hypericineae. Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in Sinu Regis Georgii collegit Carolus liber baro de Hügel: 12 [tax. nov.]

• Type: "Swan River (Hügel.)"

Mueller, F.J.H. von (February 1862), Thalamiflorae. The Plants Indigenous to the Colony of Victoria 1: 193 [taxonomic synonym]

taxonomic synonym of: Hypericum gramineum G.Forst. legitimate

Bentham, G. (30 May 1863), Flora Australiensis 1: 182 [taxonomic synonym]

taxonomic synonym of: Hypericum gramineum G.Forst. legitimate

Domin, K. (1928), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 980 [basionym]

basionym of: Hypericum gramineum var. pedicellare (Endl.) Domin legitimate

Robson, N.K.B. (1973), Notes on Malesian species of Hypericum (Guttiferae): Flora Malesianae Praecursores LII. Blumea 20(2): 265 [taxonomic synonym]

taxonomic synonym of: Hypericum gramineum G.Forst. legitimate

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Hypericum gramineum G.Forst. legitimate

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Hypericum gramineum G.Forst. legitimate

---