Fries, E.M. (1828), Novitiae Florae Suecicae, Editio Altera: 236 [tax. nov.]

• Type: (not seen).

Ewart, A.J. (1918), Contributions to the Flora of Australia, No. 26. Proceedings of the Royal Society of Victoria 30: 174 [secondary reference]

Walsh, N.G. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Clusiaceae. Flora of Victoria 3: 319, 320, Fig. 63n [secondary reference]

common name: Square-stem St John's Wort [n/a]

Robson, N.K.B. (2002), Studies in the genus Hypericum L. (Guttiferae) 4(2). Section 9. Hypericum sensu lato (part 2): subsection 1. Hypericum series 1. Hypericum. Bulletin of the British Museum (Natural History) Botany 32(2): 80-82 [secondary reference]

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - APC [secondary reference]

• APC Dist.: Vic (naturalised), Tas (naturalised)

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